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From aguettou...@apache.org
Subject [incubator-nuttx] 02/02: Remove the obsolete ChangeLog file
Date Fri, 24 Apr 2020 21:07:23 GMT
This is an automated email from the ASF dual-hosted git repository.

aguettouche pushed a commit to branch releases/9.0
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git

commit c5f306a0873efab244db14ed053bd9b12eaff72a
Author: Gregory Nutt <gnutt@nuttx.org>
AuthorDate: Fri Apr 24 12:26:07 2020 -0600

    Remove the obsolete ChangeLog file
    
    We do not intend to update the ChangeLog file for releases past 8.2.  It used to be a stepping stone between the 'git log' and the ReleaseNotes.  However, it no longer serves that purpose.  In fact it has no purpose at all; all of the change history is in the 'git log'.  That is where people look for historical information, not in the obsolete ChangeLog.
---
 ChangeLog | 27615 ------------------------------------------------------------
 1 file changed, 27615 deletions(-)

diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index dbb3786..0000000
--- a/ChangeLog
+++ /dev/null
@@ -1,27615 +0,0 @@
-0.1.0 2007-03-09  Gregory Nutt <gnutt@nuttx.org>
-
-	* Initial Release
-	* Support for Linux user mode simulation and TI
-	  TMS320C5471 (Arm7) provided
-
-0.1.1 2007-03-14  Gregory Nutt <gnutt@nuttx.org>
-
-	* Corrected an error in interrupt level context switching
-	  for C5471
-	* Added fgets() and gets() logic; verified c5471 console read.
-	* Corrected error in reading from the C5471 serial port:
-	  Improper use of semaphore can cause deadlock.
-	* Fixed an error in the memory cleanup:  The idle task
-	  cannot take semaphores (because it must always be ready
-	  to run).
-	* Tasks can now accept a configurable maximum number of
-	  input parameters (argc)
-	* _task_init() was divided into separate functions that
-	  require fewer parameters.  This was necessary to keep
-	  the stack usage down for the 8051/2 (which has only
-	  256 bytes of stack).
-	* Attempts to use C5471 console from interrupt handlers
-	  can cause errors. Added a special path for this case.
-	* Refuse calls to sem_wait and sem_trywait from interrupt
-	  handlers.  This was happening because interrupt handlers
-	  were calling printf-like functions.
-	* Added strtok() and strtok_r()
-	* Added a simple shell called nsh (see examples/nsh).
-	* Platform support for 8052 is complete but not stable
-	  when the timer interrupt is enabled.  Seems to be an
-	  issue when SP enters indirect address space.
-	* Documentation updates
-
-0.1.2 2007-03-19  Gregory Nutt <gnutt@nuttx.org>
-
-	* Add dirent.h, opendir(), readdir(), closedir(), etc.
-	* Add strerror()
-	* Added 'ls' command to nsh
-	* Added C5471 watchdog driver
-	* Fixed another bug where free() is called from IDLE task.
-	  Can't do this; the caller must be able to wait for access
-	  to memory.
-	* Fixed bugs associated with debug output:
-	  Cannot do dbg() in middle of context switch logic.
-	  because it may require use of semaphores and cause
-	  additional context switches. lldbg() is safe.
-	* Interrupt must be disabled throughout all context switches.
-	* Separated C5471 serial driver; a shareable part is
-	  in drivers/. ; the C5471 specific part is in arch/C5471.
-	  serial.h defines the interface.
-	* Fixed mq_receive() and mq_send(): bad memcpy()
-	* Fixed C5471 signal deliver logic: use of dbg() and
-	  other actions by use signal handler can alter errno.
-	  need to protect errno during signal handling.
-	* Fixed uninitialized variable in filesystem that could
-	  cause various problems
-	* Added a test for roundrobin scheduler.
-
-0.2.1 2007-03-22  Gregory Nutt <gnutt@nuttx.org>
-
-	* Fix error in handing signed decimal in vsprintf().
-	* Major restructuring of header files to get closer to
-	  POSIX compliance.
-	* Eliminate compilation warnings that crept into recent check-ins
-	* Add kill()
-	* Added support for POSIX timers
-	* Some Documentation updates
-	* Added support for the Neuros OSD / DM320
-
-0.2.2 2007-03-26 Gregory Nutt <gnutt@nuttx.org>
-	* Created the configs/ directory; separated board configuration
-	  from processor architecture logic
-	* Add memory leak detection test to examples/ostest
-	* Corrected memory leak in OS pthread join logic
-	* Corrected memory leaks in examples/ostest due to failures
-	  to join or detach from pthreads.
-	* Added pthread_once(), pthread_kill(), pthread_sigmask()
-	* Added pthread_barrierattr_*() APIs
-	* Added pthread_barrier_init(), pthread_barrier_destroy(), and
-	  pthread_barrier_wait();
-	* Added pthread barrier test
-	* Added protection so that errno cannot be modified from
-	  interrupt handling.
-	* sched_setparam(), sched_setscheduler() now correctly set
-	  errno; pthread_setscheduler() now returns the correct errno.
-	* Added pthread_setschedprio().
-	* Added directories to hold board-specific header files
-	* Added directories to hold board-specific drivers
-
-0.2.3 2007-03-29 Gregory Nutt <gnutt@nuttx.org>
-
-	* mq_receive and mq_send now return errno's appropriately
-	* mq_receive and mq_send are now correctly awakened by signals.
-	* Fixed an unmatched sched_lock/unlock pair in task_delete().
-	* sched_lock must be called in _exit() because operation of
-	  task_delete() can cause pending tasks to be merged and a
-	  context switch to occur.
-	* Added mq_timedreceive() and mq_timedsend()
-	* signal mask is now inherited by both child tasks and threads.
-	* Improved sharebility of stdout among pthreads (only).  Nothing
-	  was broken, but by moving the mutual exclusion logic to a
-	  higher level, the printf output is more readable.
-	* Fixed a bug in file system cleanup:  A list was being deleted
-	  before the buffers contained in the list.
-	* Fixed a bug in the wait-for-message-queue-not-empty logic.
-	* Added a test of timed mqueue operations; detected and corrected
-	  some mqueue errors.
-	* Identified and corrected a race condition associated with
-	  pthread_join.  In the failure condition, memory was being
-	  deallocated while still in use.
-
-0.2.4 2007-04-28 Gregory Nutt <gnutt@nuttx.org>
-
-	* Verified c5471 build under Cygwin on WinXP
-	* Makesystem changes to better support different SoCs.
-	* Made arch/c5471/include and arch/dm320/include identical in
-	  preparation for merging into arch/arm
-	* Logic from arch/c5471 and arch/dm320 combined into arch/arm.
-	  arch/c5471 and arch/dm320 are deprecated and will be removed
-	  when the new c5471 and dm320 logic is verified.
-
-0.2.5 2007-05-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* Corrected some build/configuration issues introduced with the
-	  last release.
-	* Added support for the NXP 214x processor on the mcu123.com lpc214x
-	  development board (untested)
-	* Added support for block devices.
-	* Simulated target now exports a VFAT filesystem
-	* Begin support for VFAT filesystem (missing functionality)
-	* Added mount() and umount()
-	* Fix bug in memcmp return value
-	* Fix errors in timeslice calculation (several places)
-	* Added missing irqrestore() in timer_deleteall().
-	* close() was not closing the underlying device.
-	* Added fsync()
-	* Added strspn() and strcspn()
-
-0.2.6 2007-05-26 Gregory Nutt <gnutt@nuttx.org>
-
-	* Added unlink(), mkdir(), rmdir(), and rename()
-	* Fixed several serious FAT errors with oflags handling (&& instead of &)
-	* Added FAT support for unlink(), mkdir(), rmdir(), and rename
-	* Added FAT support for opendir(), closedir(), readdir(), seekdir(),
-	  telldir(), rewindir().
-	* Fixed ARM compilation errors introduced in 0.2.5 (that is what I get
-	  for only testing on the simulation).
-
-0.2.7 2007-06-09 Gregory Nutt <gnutt@nuttx.org>
-
-	* Added stat() to fs layer and to FAT
-	* Fixed reference counting errors associated with mounted filesystems
-	* Added fat_getattrib() and fat_setattrib()
-	* Added statfs() to fs layer and to FAT
-	* Correct file name extension in tools/zipme.sh
-	* Fix error in dependencies in 8051/2 Makefile
-	* sched/Makefile: Don't build sleep() or usleep() if signals are disabled
-	* sched/sched_setparam.c: Remove redundant disabling of interrupts
-	* sched/usleep.c: Fixed nsec calculation
-	* lib/lib_strcspn.c: Function incorrectly named strspn().
-	* examples/ostest/main.c:  Errors in SDCC version of a memcpy() call
-	* examples/ostest/sighand.c: Don't call fflush() if streams are disabled
-	* include/limits.h, include/time.h, sched/clock_internal.h: A support for
-	  using selectable system timer frequency.
-	* Fixed error in mountpoint related conditional compilation introduced
-	  in 0.2.5
-	* Restructured some Makefiles to better handle enabling and disabling
-	  NuttX features without having so much conditional compilation in the
-	  source files.
-	* tools/mkconfig.c: No longer depends on asprintf() and _GNU_SOURCE and
-	  so should now build in non-GNU, non-GLIBC environments.
-	* include/nuttx/compiler.h: Fix for using SDCC with the Z80.
-	* include/assert.h & arch/pjrc-8051/src/up_assert.c: SDCC does support
-	  __FILE__and __LINE__ (not tested)
-	* examples/ostest/barrier.c: Don't call usleep() when signals are
-	  disabled.
-
-0.2.8 2007-07-02 Gregory Nutt <gnutt@nuttx.org>
-	* tools/Makefile.mkconfig: Under Cygwin, executable has a different name
-	* tools/mkdeps.sh & arch/arm/src/Makefile: Corrected a problem making dependencies
-	* tools/zipme.sh: Force directory name to be nuttx-xx.yy.zz
-	* fs/fs_opendir.c: Correct errors in semaphore usage that can cause deadlock.
-	* lib/lib_getopt.c: Added getopt() support
-	* examples/nsh/:  NSH now supports cat, mount, umount, and mkdir.  ls supports
-	  -l -s, and -R
-	* Added basic OS support to manage environment variables:  environment
-	  storage, cloning on task creation, sharing on pthread creation, destruction
-	  on thread/task exit.
-	* Add environment variables APIs:  environ, getenv, putenv, clearenv, setenv,
-	  unsetenv
-	* Correct an error in realloc() when the block is extended "down" in memory.
-	  In this case, the old memory contents need to be copied to the new location
-	  and an allocated bit was not being set.
-	* examples/ostest/: Added an environment variable test.
-	* examples/nsh/: Break into several files.
-	* lib/: Added strrchr, basename, dirname
-	* examples/nsh/: Add cp, rm, rmdir, set, unset commands. echo will now print
-	  environment variables.
-
-0.3.0 2007-11-06 Gregory Nutt <gnutt@nuttx.org>
-
-	* Imported uIP into the tree (see
-	   http://www.sics.se/~adam/uip/index.php/Main_Page)
-	* Adding socket(), bind(), connect()
-	* Added snprintf()
-	* Added send() and sendto(); integrate write() and close() with socket descriptors.
-	* Added recv() and recvfrom().
-	* Added getsockopt() and setsockopt()
-	* Documentation updated to address socket interfaces.
-	* Implemented receive timeouts via setsockopt(SO_RCVTIMEO).
-	* Provide support for multiple network devices
-	* Implement socket ioctl() calls to set addresses
-	* Added listen() and accept()
-	* Added DM90x0 Ethernet driver
-	* ARP timer is now built into the network layer
-	* Basic client functionality verified: TCP socket(), bind(), connect(), recv(), send().
-
-0.3.1 2007-11-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* Separated net/uip/uip.c into several functions in several files.
-	* Corrected a TCP problem where packets were dropped because there was no
-	  recv() in place but the packet was being ACKed.  There are still TCP
-	  recv buffering issues, but this is part of a larger buffering issue.
-	* Basic server functionality verified: TCP listen(), accept()
-	* Fix DM90x0 driver problem that caused TX overruns
-	* Add strncmp()
-	* Added TCP/IP read-ahead buffer to minimize failed ACKs and packet loss.
-
-0.3.2 2007-11-23 Gregory Nutt <gnutt@nuttx.org>
-
-	* Add strcat() and strncat()
-	* Integrated uIP micro webserver
-	* Corrected a serious bug in TCP queue management
-	* Fix leak in socket close logic
-	* Add TX notification to driver so that it can respond faster to
-	  the availability of TX data.
-	* Moved urgent data info into device structure.
-	* TCP and ICMP protocols can now be disabled.
-	* Added UDP test in examples/udp
-	* Verified/debugged UDP socket(), bind(), sendto() and recvfrom() logic
-	  using examples/udp
-	* recvfrom() and accept() now correctly return the remote address.
-	* Fixed computation error in ntohl().
-
-0.3.3 2007-11-28 Gregory Nutt <gnutt@nuttx.org>
-
-	* Removed unused uIP files
-	* sched/, mm/, and net/ subsystem debug can now be selectively enabled/disabled
-	* Correct socket close logic: needs to disconnect TCP socket on close
-	* uIP webserver now seems to be fully functional
-	* fs/ and lib/ subsystem debug can now be selectively enabled/disabled
-	* Added vsnprintf
-	* Integrated uIP telnetd
-	* Add missing logic to read-ahead buffer logic
-	* examples/nettest uses larger buffers
-	* Improved ACK handling in send() to better handler deferred acknowledgements
-	  and polling intervals.  Greatly improves send performance.
-
-0.3.4 2007-12-10 Gregory Nutt <gnutt@nuttx.org>
-
-	* Added and partially verified DHCP server logic (netutils/dhcpd)
-	* Fix BROADCAST=y compilation problems
-	* Fix UDP recvfrom timeout bug
-	* Correct processing of input UDP broadcast packets.
-	* Verfied basic DHCP client functionality (netutils/dhcpc)
-	* Implemented send() timeout logic
-	* Added and verified a TELNETD front end to NSH (examples/nsh)
-	* Add a skeleton Ethernet device driver (drivers/net/skeleton.c)
-	* Added C5471 Ethernet device driver (arch/arm/src/c5471/c5471_ethernet.c)
-	* Found and fixed several problems in uIP when compiled for ARM with optimization.
-
-0.3.5 2007-12-18 Gregory Nutt <gnutt@nuttx.org>
-
-	* Added inet_ntoa() and ether_ntoa()
-	* Added netdev_foreach() to support traversal of registered network devices
-	* Added support for 'ifconfig' command to NSH (examples/nsh)
-	* Moved MAC and Ethernet definitions to net/ethernet.h
-	* Fix sim and DM90x0 compilation errors introduced in 0.3.4
-	* Fixed errors in C5471 configuration files for examples/uip
-	* Modified DHCPC (netutils/dhcpc) so that it should work in environments where
-	  there are more than one DHCPD server.
-	* NSH ifconfig command now shows uIP status as well (examples/nsh)
-
-0.3.6 2008-01-06 Gregory Nutt <gnutt@nuttx.org>
-
-	* Changes for use with SDCC compiler
-	* Added a simulated z80 target
-	* Fix deadlock errors when using stdio but with no buffering
-	* Add support for Pascal P-Code interpreter
-
-0.3.6.1 2008-01-07 Gregory Nutt <gnutt@nuttx.org>
-
-	* The initial 0.3.6 release including an error that prevented
-	  building successfully if the Pascal add-on was
-	  was not present.
-
-0.3.7 2008-01-31 Gregory Nutt <gnutt@nuttx.org>
-
-	* Added support for the Zilog Z16F using the Zilog Z16F2800100ZCOG
-	  Development Kit.
-	* Add support toolchains that do not support making of dependencies
-	* Fix Cygwin build with spaces in directory names
-	* Name make system changes to deal with non-GNU toolchains (i.e., Zilog)
-	* Add support for Windows native toolchains that cannot follow Cygwin soft links
-	* Modified serial driver interface to handle hardware with non-16550A-like
-	  interrupt architecture (like the Z16F)
-	* Added a "dumb" serial console driver to simplify OS bringup
-	* Corrected a bug that caused the errno value of one task to be clobbered
-	  when a different task exits.	Affects all architectures.
-
-0.3.8 2008-02-10 Gregory Nutt <gnutt@nuttx.org>
-
-	* Added a test case to verify the Pascal P-Code interpreter
-	* Added /dev/zero
-	* 'errno' is now defined to be *get_errno_ptr() with no name conflicts
-	* Added lseek() and fseek()
-	* Integrated Pascal interpreter test case on the simulation platform.  Needs
-		  pascal-0.1.1.
-	* Add Pascal test case on the z16f platform.  Needs pascal-0.1.2 (does not
-		  yet work due to some tool issues).
-	* C buffered I/O fixes:
-	  - Fix fflush() return value,
-	  - Add correct fflush behavior when the FILE argument is null.
-	  - Add logic to a correctly handle read/write access on the same FILE
-	  - fseek() flushes read/write data when before moving the file pointer
-	  - When read data is flushed, reposition the file pointer to account for
-		buffered, but unread data
-	* Pascal P-Code files are now standardized to big-endian for portability
-	* Fix a build problem with z80 and SDCC 2.7.0 (format of a map file changed)
-	  (see bug 1887170)
-	* Pascal P-Code runtime now compiles with the SDCC toolchain.
-	* Added a generic CAN driver.  This driver is untested as of this writing.
-	* Corrected DM320 UART configuration problem
-
-0.3.9 2008-03-09 Gregory Nutt <gnutt@nuttx.org>
-
-	* Began adding support for the ZiLOG Z8Encore! microcontroller for the Z8Encore000ZCO
-	  development board and the Z8F6403 part.
-	* Fix broken 'clean' target on z80sim configurations
-	* Re-structure arch/z80 to provide support for all ZiLOG 8-bit microcontrollers (ez8
-	  in particular for now).
-	* Add support for TRS80-Model 3 based on the xtrs emulation (http://www.tim-mann.org/xtrs.html)
-	  Per patch from Jacques Pelletier.
-	* In all shell scripts, change #!/bin/sh to #!/bin/bash to resolve problems in
-	  Ubuntu where /bin/sh is a link to dash.
-	* Z8Encore! port verified on ZDS-II instruction set/chip simulator.
-
-0.3.10 2008-05-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* Add support for the ZiLOG EZ80Acclaim microcontrooler (EZ80F91 chip).
-	* Add configuration for the ZiLOG z8f64200100kit development kit, Z8F6423 part.
-	* Add configuration for the ZiLOG ez80f0910200kitg development kit, EZ80F091 part.
-	* Correct critical list handling errors in task shutdown logic: One in timer
-	  deletion logic (timer_delete.c) and one in stream logic (lib_init.c) reported
-	  by kwonsk.
-
-0.3.11 2008-06-01 Gregory Nutt <gnutt@nuttx.org>
-
-	* Add support for recursive mutexes.
-	* Eliminate a memory leak: contained watchdog instance was not being
-	  deleted with a POSIX timer was deleted reported by kwonsk.
-	* Eliminate a deadlock condition in opendir() reported by kwonsk.
-	* Fix several FAT filesystem problems reported by kwonsk (Changes not yet
-	  verified).
-	* Host simulator no longer uses Linux system calls directly; Now works with Cygwin.
-	* Fix an error that occurs when a POSIX timer is deleted by the timer signal handler.
-	* Add logic to allow the examples/ostest to be run repetitively as an endurance test.
-	* Add a ramdisk block driver
-
-0.3.12 2008-08-10 Gregory Nutt <gnutt@nuttx.org>
-
-	* Improved solution to POSIX timer lifetime controls bug fixed in 0.3.11.
-	* Add test for recursive mutexes
-	* Correct bug in recursive mutex logic
-	* Add mkfifo()
-	* Add pipe() and test for both pipes and fifos
-	* Attempts to open a FIFO will now block until there is at least one writer
-	* Add test/Fixed errors in FIFO reader/writer interlocks
-	* Removed limitation: task_create() was only dup'ing 3 file descriptors (now
-	  dups all open file descriptors).
-	* Added a test for redirection of stdio through pipes
-	* Fixed error in dup and dup2: Must call open/close methods in fs/driver so that
-	  driver can correctly maintain open reference counts.
-	* Same issue on closing file descriptors in exit()
-	* Fixed in error in stdio flush logic.	Needed ssize_t vs size_t for error
-	  check.
-	* Moved all FAT related files from fs to fs/fat
-	* Implemented mkfatfs(), a non-standard API to create a FAT filesystem on a
-	  block device (not yet tested).
-	* Added a test for mkfatfs() on a RAM disk in examples/mount and verified
-	  basic mkfatfs functionality for FAT12.
-
-0.3.13 2008-09-01 Gregory Nutt <gnutt@nuttx.org>
-
-	* NSH: Added mkfatfs, mkfifo, sleep, usleep and nice commands
-	* Fixed problem with console input in Cygwin-based simulator; NSH now works
-	  with simulator.
-	* NSH will now execute commands in background
-	* sched_get_priority_max/min returned error on SCHED_RR
-	* Removed duplicate getenv() implementation in /lib
-	* Correct detection of End-of-File in fgets
-	* NSH: Implemented sh and crude script handler
-	* Fix prototype of read() and write(). Need to use ssize_t and size_t, not
-	  int and unsigned int.
-	* NSH now supports redirection of command output
-	* NSH can now use both telnet and serial front ends together
-	* NSH: $variable can be used for any command value
-	* Fixed an error in opendir() that could cause an assertion to fail
-	  inappropriately.
-	* Correct an error in the FAT that caused files opened for writing with
-	  O_APPEND to fail.  The file was not being properly positioned to the
-	  end of the file in that case.
-	* NSH now supports last exit status $?
-	* NSH now supports if-then[-else]-fi construct
-	* NSH now supports comments beginning with '#'
-	* NSH now supports commands to inspect and modify memory
-	* NSH cat command now supports multiple files on command line
-	* Add chdir() and getcwd()
-	* Fix error in getopt() when called with argc==1
-	* Fix error in stat() when used on the root directory
-	* NSH: Add cd and pwd commands and current working directory to all NSH
-	  commands that refer to paths.
-	* Fix errors and warnings introduced into Linux sim build because of recent
-	  Cygwin-based sim changes
-	* NSH: Add mem command to display heap usage
-	* Added telnet NSH configuration for Neuros OSD.
-	* Basic integration of concurrent telnet/serial NSH functional on Neuros
-	  OSD.
-	* Fixed a critical bug that affects the way that environment variables are
-	  shared amongst pthreads.
-	* uIP port enhance to support multi-threaded, concurrent socket access.  So,
-	  for example, one thread can be reading from a socket while another is
-	  writing to the socket.
-
-0.3.14 2008-09-08 Gregory Nutt <gnutt@nuttx.org>
-	* FAT FS now uses position variable in struct file.  This simplifies operations
-	  like ftell().
-	* fseek() needs to discard bytes buffered by ungetc().
-	* Corrected ftell() return value.
-	* Added fsetpos() and fgetpos().
-	* NSH: Now supports 'test' and '[' commands
-	* Correct error in send() timeout logic.
-	* Correct error in multi-threaded socket handling in send() and sendto().
-	  Outgoing data could overwrite incoming data.
-	* Add support to uIP for application access to ICMP protocol stacks; Add
-	  ping request logic.
-	* NSH: Add ping command
-	* Correct IP checksum calculation in ICMP and UDP message send logic.
-	* NSH: Created an HTML document and a more detailed README file describing NSH.
-	* Added basic TFTP client logic (netutils/tftpc).
-	* NSH: Add get and put commands to support TFTP get and put operations.
-	* NSH: Added a mkrd command that will create a RAMDISK that can be formatted
-	  and mounted.
-	* Corrected a critical bug that prevent recvfrom from receiving packets from
-	  any remote UDP port.
-	* NSH: Add hexadecimal dump command (xd)
-	* Fixed several critical bugs with regard to fat reading and writing and FAT12
-	  accesses.  Basically the FAT FS only worked with my tiny test files and test
-	  cases.  A lot of stronger FAT tested is needed!!
-	* Fixed another FAT bug in implementation of FAT lseek; this prohibit correct
-	  random access to large files.
-
-0.3.15 2008-09-20 Gregory Nutt <gnutt@nuttx.org>
-	* Added support for ROMFS filesystem.
-	* Added a simple test the ROMFS filesystem (examples/romfs)
-	* NSH: Use ROMFS to provide an option for a start-up script at /etc/init.d/rcS
-	* Add definition of BIOC_XIPBASE ioctl and implement in RAM disk block driver.
-	  This is a low level requirement for eXecute In Place (XIP) support.
-	* Add a FIOC_MMAP to perform memory mapping of a file and implemented the
-	  ioctl command in the ROMFS filesystem.  This is a requirement for eXecute
-	  In Place (XIP) support.
-	* Add mmap() API with restricted capability (only for XIP support)
-	* Extend ROMFS test at /examples/romfs to verify mmap() and XIP support.
-	* Add support for Intel Hex format output using objcopy
-	* Completed the basic port of the NXP LPC2148 on the mcu123.com board.
-	  The basic port includes successful booting, timer interrupts, serial console,
-	  successfully passing the examples/ostest, and a NuttShell (NSH) configuration.
-	* ARM architectures now support drivers/lowconsole.c
-
-0.3.16 2008-10-10 Gregory Nutt <gnutt@nuttx.org>
-	* Added header files defining a common USB device controller architecture
-	* Added USB device side driver for the LPC214x
-	* Correct the frequency of system timer interrupts in the NXP LPC214x port
-	  (off by 20x in nuttx-0.3.15)
-	* Add an option to set aside a separate stack for interrupt handling (ARM only).
-	  This is useful when memory is constrained, there are multiple tasks, and
-	  the interrupt stack requirement is high (as when USB is enabled).
-	* Added USB serial class device side driver (emulates Prolific PL2303
-	  serial-to-USB adaptor)
-	* Add LPC214x USB serial configuration; Add examples/usbserial test
-	* Added USB device side driver for the DM320 (untested at initial release)
-	* Fixed an error in a previous (post 0.3.15) check-in that broke the LPC214x
-	  system timer.
-	* Fixed serial driver bugs related to (1) open counts and (2) recognizing
-	  O_NONBLOCK on read.
-	* Fixed an error in read(); it was not setting the errno on errors returned
-	  from the driver.
-
-0.3.17 2008-10-28 Gregory Nutt <gnutt@nuttx.org>
-	* Incorporate patch "[2164503] nuttx-0.3.16 does not build for ARM with USB disabled"
-	* Reduced the amount of memory reserved for USB serial control requests.  It
-	  was unnecessarily large.
-	* Added LPC214x SPI1 driver to interface with MMC on mcu123.com board.
-	* Added a simple SPI-based MMC/SD block driver
-	* NSH: Add LPC214x-specific support to NSH; NSH now mounts any SD cards in the slot.
-	* FAT: Fix access to unaligned 32-bit values in partion table (start sector & size)
-	* Fixed a problem with a un-initialized variable in the USB serial driver.
-	* Added USB storage NXP LPC214x configuration
-	* Added a test for USB storage under examples/usbstorage
-	* Fixed a bug in the LPC214x USB driver: It was not properly clearing a HALTed
-	  endpoints (other than EP) on receipt of CLEAR FEATURES request.
-	* Added USB storage class device side driver (BBB)
-	* Fixed a bug in the LPC214x USB driver: It was not properly handling request buffers
-	  larger then the endpoint's max packet (DM320 driver also fixed, untested)
-	* Added logic to the USB device interface:	A bit is needed to force the driver to
-	  to terminate an IN transfer with a short packet (zero-length if necessary).
-	* Fix an error in the NXP LPC214x USB device driver that was causing corruption of
-	  the request queue (M320 driver also fixed, untested)
-	* Correct another error in the NXP LPC214x USB device driver that caused read failures
-	  when the request buffer size was larger than maxpacket.
-	* Numerous corrections/extensions to the USB tracing logic included in 0.3.16 (but
-	  not integrated until 0.3.17)
-	* Fixed another bug in the NXP LPC214x USB device driver:  After a stalled endpoint
-	  is resumed (view CLEAR FEATURE), we must restart the IN (outgoing) queue.
-
-0.3.18 2008-11-16 Gregory Nutt <gnutt@nuttx.org>
-	* Added port for the STMicro STR71x processor and configuration for the Olimex STR-P711
-	  board (STR71x testing is stalled because I have been unable to get OpenOCD to
-	  communicate with my JTAG wiggler on Linux).
-	* Fix race condition workaround delay in LPC214X SPI logic.  This was also the cause of the
-	  very bad MMC/SD performance.
-	* Began port of the Hitachi SH-1 using the SH-1/US7032EVB1 board
-	* Re-built all configurations that use SDCC and Zilog toolchains to make sure they still
-	  build (they didn't, but they do now).
-	* Fixed several erroneous "list empty" checks in the CAN driver.
-	* Hitachi SH-1 passes (reduced) examples/ostest; the examples/nsh test still fails.
-	  There are remaining instabilities that make the port un-usable.  The nature of these is
-	  not understood; the behavior is that certain SH-1 instructions stop working as advertised.
-	  This could be a silicon problem, some pipeline issue that is not handled properly by the
-	  gcc 3.4.5 toolchain (which has very limit SH-1 support to begin with), or perhaps with the
-	  CMON debugger.  At any rate, I have exhausted all of the energy that I am willing to put
-	  into this cool old processor for the time being.
-	* Renamed configuration item CONFIG_PROC_STACK_SIZE as CONFIG_IDLETHREAD_STACKSIZE:  It now
-	  only controls the size of the stack for the IDLE thread.	Added CONFIG_USERMAIN_STACKSIZE:
-	  This is the size of stack used with the user_start() thread is created.  The two stacks
-	  no longer have to be the same.
-	* Add a loop device that converts a file into a block device.
-	* Each NSH command can now be disabled through a configuration setting. All of these
-	 settings make the configuration of NSH potentially complex but also allow it to squeeze
-	  into very small memory footprints.
-	* Added a block to character (BCH) driver.	This is kind of the reverse of the loop
-	  device; it allows you access a block device like a character device.
-	* Added strcasecmp() and strncasecmp()
-	* NSH: Added the 'dd' command
-	* NSH: Added the 'losetup' command
-	* Fixed a FAT bug:	After recent changes, it would mount a (invalid) FAT file system
-	  even if the medium is not formatted!
-	* Corrected two important errors in FAT lseek implementation: (1) the sectors-per-cluster
-	  value was being reset to "1" and (2) important lseek logic was omitted when the seek
-	  position was zero.
-	* Fixed a bug in getopt().	It would fail if on certain combinations of terminal argument
-	  types.
-
-0.3.19 2008-11-26 Gregory Nutt <gnutt@nuttx.org>
-	* Add poll() and select() APIs (in the initial check-in, these work only with character devices)
-	* Add poll() methods to /dev/null, /dev/zero, pipes, fifos, and serial drivers.
-	* Add examples/poll for testing poll() and select()
-	* Fix hostile behavior of getc, fgetc, getchar, etc.: the serial driver was waiting for a
-	  full buffer of read data before return.  This means that getc would stall when it needed
-	  to refill the input buffer. The old behavior (read full blocks) might be useful in other
-	  contexts, so it is still available within the driver as a configuration option.
-	* Implement poll() and select() support for TCP/IP sockets
-	* Fixed an important bug in the TCP/IP buffering logic.  When TCP/IP read-ahead is enabled
-	  and not recv() is in-place when a TCP/IP packet is received, the packet is placed into
-	  a read-ahead buffer.	However, the old contents of the read-ahead buffer were not being
-	  cleared and old data would contaminate the newly received buffer.
-	* Implemented support for connection backlog.  The size of the backlog is specified by the
-	  second argument of the standard listen() API.  Hooks are provided to support poll()/select()
-	  waiting for connections, with a subsequent call to accept() to use the backlogged connection.
-	* Fixed a minor bug in accept().  It should allow the address and addresslen values to be NULL
-	* Added first-cut definition for a framebuffer interface (and simulated framebuffer for testing
-	  purposes only)
-	* Added fixed precision math support
-	* Added some color converson routines into what may become a real graphics library someday.
-	* Added a framebuffer driver for the DM320 (untested on initial check-in)
-	* Network:  Add support for outgoing multicast addresses
-	* Added some rasterizers to the graphics library
-
-0.4.0 2008-12-06 Gregory Nutt <gnutt@nuttx.org>
-	* Initial release of a tiny windowing system for NuttX
-	* Add fixed precision sin() and cos() (not well tested at initial check-in)
-	* Add an X11-based simulated framebuffer driver
-	* The simulated target now has an option (CONFIG_SIM_WALLTIME) that will let the simulation
-	  run in more-or-less realtime.
-	* Added more extensive window support:  frames, toolbars, etc.
-	* Added support for bitmap fonts
-	* Integrated the new font support with a font test in examples/nx
-	* Add documentation for NX graphics subsystem
-
-0.4.1 2009-02-06 Gregory Nutt <gnutt@nuttx.org>
-	* Added board support for the ZiLog eZ80Acclaim! ez80f910200zco Development Kit.
-	* Fixed several compilation errors in fixed precision math library when built
-	  against toolchains that do not support 64-bit type 'long long'.
-	* Fix errors in some function prototypes in dirent.h
-	* Add eZ80F91 EMAC driver
-	* Fix recvfrom() compilation error: only noted under ZDS
-	* Updated all ARM Make.def files to work with gcc 2.4.2 (However, there are
-	  still some build issues associated with that toolchain in use of arm-elf-objcopy
-	  -- see the TODO.txt list for details)
-	* Fix problems with Z16F and eZ80 compilation introduced with recent changes.
-
-0.4.2 2009-02-28 Gregory Nutt <gnutt@nuttx.org>
-
-	* M16C: Add support for the Renesas M16C MCU and the SKP16C26 StarterKit. However,
-	  the target cannot be built because the GNU m16c-elf-ld link fails with
-	  the following message:
-
-		m32c-elf-ld: BFD (GNU Binutils) 2.19 assertion fail /home/Owner/projects/nuttx/buildroot/toolchain_build_m32c/binutils-2.19/bfd/elf32-m32c.c:482
-
-	  Where the reference line is:
-
-		/* If the symbol is out of range for a 16-bit address,
-		   we must have allocated a plt entry.	*/
-		 BFD_ASSERT (*plt_offset != (bfd_vma) -1);
-
-	  No workaround is known at this time.	This is a show stopper for M16C.
-
-	* eZ80Acclaim!: Fix interrupt vectors positioning; they were being positioned
-	  wrong by 64 bytes (Kevin Franzen).
-	* eZ80Acclaim!: Corrected some stack handling errors during interrupt handling
-	   context save and restore (Kevin Franzen).
-	* eZ80Acclaim!: Corrected vector initialization logic (Kevin Franzen).
-	* eZ80Acclaim!: Corrected overflow problem in the calculation of UART baud rate
-		divisor, the system timer divisor, and the EMAC poll timer.
-	* eZ80Acclaim!: Fixed GPIO pin configuration get serial output
-	* eZ80Acclaim!: Correct stack overflow in ostest example configuration
-	* eZ80Acclaim!: Fixed restoration of interrupts state on interrupt level context switch.
-
-0.4.3 2009-03-04 Gregory Nutt <gnutt@nuttx.org>
-
-	* z8Encore! and eZ80Acclaim!: Fixed the serial driver initialization sequence
-	* eZ80Acclaim!: Fixed error in vector table:  Missing space set aside for the
-	  "unused" vectors.  As a result, all vectors above timer4 were skewed.
-	* eZ80Acclaim!: Fixed logic error in UART interrupt handler.
-	* Many fixes in FAT file system and in NSH for correct compilation with ZDS-II
-	* eZ80Acclaim!: Added and verified a NuttShell (NSH) configuration.
-	* eZ80Acclaim!: Correct endian-ness; defconfig files said BIG endian.
-	* Restructured parts of the uIP port for correct compilation with ZDS-II
-	* eZ80Acclaim!: Complete basic integration of the eZ80F91 EMAC driver.	The
-	  driver is basically functional and should mature prior to the 0.4.3 release.
-	* Implemented priority inheritance logic for POSIX semaphores.	Because the pthread
-	  mutexes are built on semaphores, they will have this property as well.
-
-0.4.4 2009-03-29 Gregory Nutt <gnutt@nuttx.org>
-
-	* examples/nsh:  A debug option was left on that can (and does) cause
-	  infinite loops and stack overflows.
-	* net/uip: Correct calculation of checksum on ICMP ping response.
-	* examples/dchpd: Added a tiny DHCP server example
-	* net/uip: Correct UDP bind behavior.  It should select a valid port number
-	  if it receives a port number of zero.
-	* netutils/dhcpd:  correct for ZDS compiler.  Fix issue with re-use of a
-	  port number. Fixed a number of broadcast-related problems.
-	* eZ80Acclaim!: Add a tiny webserver configuration
-	* eZ80Acclaim!: Fixed an important bug in the EMAC Tx timeout logic. It was
-	  always timing out when the load was heavy and worse, for some reason,
-	  resetting the Tx function caused unexpected registers to be reset in
-	  the Rcv function was well.
-	* Z80: Patch incorporated: "[2696648] Z80: interrupt flag stored in parity bit"
-	  (submitted by JPelletier).  The is the same fix that was needed for the
-	  eZ80 and fixed in 0.4.2.
-	* netutils: Added logic to support a simple wget() function
-	* examples/wget: Added a test for wget() (untested -- see NOTE)
-	* lib/strncasecmp: Fix cut'n'paste error in function name.
-	* NSH: Added wget command (untested -- see NOTE).
-	* examples/sendmail: A simple sendmail example (untested -- see NOTE)
-
-	NOTE: Features related to wget and sendmail are not tested on the target platform
-	in this release and, hence, most likely have problems.	I don't have the correct network
-	setup to perform that testing now (I'm in a hotel).
-
-0.4.5 2009-04-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* Add an enumeration argument to the SPI chip select and status methods so
-	  that the interface can handle more than one device.
-	* eZ80Acclaim!: Add a generic SPI driver for all eZ80 boards.
-	* Add a setmode() method to the SPI interface to handle parts with differing
-	  mode requirements.
-	* include/nuttx/i2c.h: Defined a standard I2C interface
-	* eZ80Acclaim!: Add an I2C driver.
-	* eZ8Encore!: Add an I2C driver.
-	* Add support for the Freescale i.MX1/L architecture and a configuration for
-	  the Freescale MX1ADS development board.
-	* examples/helloxx: Added a simple C++ hello world example
-	* include/css: Added std header files
-	* libxx: New C++-only directory provides support for minimal C++ applications
-
-0.4.6 2009-05-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* Change SPI interface so that is can accommodate interfaces where the
-	  number of bits per word is greater an 8 (such as with many 9-bit display
-	  interfaces). -- this might have broken a few things which will need to
-	  be retested!
-	* arch/arm/src/imx: Added i.MX SPI driver
-	* SPI: Add a method to set the number of bits per word.  Also add an
-	  alternative interface for so that (eventually) I can phase the sndblock
-	  and recvblock methods and replace them with a single exchange method
-	* Build:  objcopy fails with toolchains that use newer GCC and binutils.  The
-	  following arguments need to be included in the objcopy command line "-R .note
-	  -R .note.gnu.build-id -R .comment"  This has been fixed in arch/arm/src/Makefile,
-	  but other architectures may have the same problem.  Thanks to Dave Marples
-	  for verifying this.
-	* configs/eagle100/ostest: Added support for the MicroMint Eagle100 board.
-	  This board has a Luminary LM3S6918 Cortex-M3. Added a configuration to build
-	  examples/ostest.
-	* arch/arm/src/lpc214x: Add configuration option to enable fast GPIO (vs.
-	  legacy, "slow" GPIO) for LPC214x.
-	* arch/arm: Restructured the arch/arm directory structure to better support ARM
-	  and Cortex-M3.
-	* sched/: pthread_create() must return a (non-negated) errno value on failure.
-	* configs/eagle100/nsh: Add a NuttShell (NSH) configuration for the Eagle-100
-
-0.4.7 2009-05-29 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lm3s: Added an Ethernet driver for the LM3S6918
-	* configs/eagle100/nettest: Added an examples/nettest configuration for the
-	  Micromint Eagle100 board.
-	* Documentation/NuttxPortingGuide.html: Added a section on NuttX device drivers.
-	* configs/eagle100/httpd: Added an examples/uip configuration for the
-	  Micromint Eagle100 board.
-	* arch/arm/src/lm3s: Added an SSI driver for the LM3S6918
-	* examples/nsh: Added MMC/SD support for the LM3S6918
-	* arch/arm/src/lm3s: Fix logic for setting and clearing output GPIOs (critical
-	  fix!).
-	* drivers/mmcsd: Found numerous errors in current MMC/SD SPI driver.  Bad frequency
-	  calculation based on CSD settings, inappropriate timeouts, odd code that looks like
-	  a bad search and replace.  Also needs support for SDHC ver 2.x.  New MMC/SD is
-	  largely redesigned and probably non-functional in the first check-in.
-	* drivers/mmcsd: Changes verified on 4Gb Kingston microSHDC card and on a 2Gb
-	  SanDisk microSDC card on the Eagle100 platform.
-	* fs/fat: With the 4Gb card, the first tests of FAT32 were (finally) performed.
-	  Found and corrected a problem that prevented use of FAT32: It was not updating
-	  the sector cache before checking the FAT32 FSINFO sector.
-	* configs/eagle100/*/Make.defs:  Added configuration options that should make
-	  it possible to build NuttX for the Eagle100 using CodeSourcery 2009q1 toolchain
-	  and the devkitARM GNU toolchain.
-	* configs/mcu123-lpc214x/src: Corrected some logic in the LPC2148 SPI receive block
-	  logic.  Re-verified SDC ver1.x support with 1Gb Toshiba SDC, 1Gb PNY SDC, and
-	  4Gb Kingston SDHC.  There are CMD0 issues with the 2Gb SanDisk SDC on this board.
-	* fs/fs_mount.c: Corrected error handling that could cause a deadlock on certain
-	  mount() failures.
-
-0.4.8 2009-06-13 Gregory Nutt <gnutt@nuttx.org>
-
-	* lib/lib_*stream.c: Extend internal stream logic to support incoming streams.
-	* arch/arm/src/str71x: Serial output is now correct and timer interrupts are
-	  working.	The test at configs/olimex-strp711/ostest passes.  This means that
-	  the basic STR-P711 port is complete.
-	* configs/olimex-strp711/nsh:  Add and verified a NuttShell (NSH) configuration
-	  for the STR-P711.
-	* arch/arm/str71x/str71x_serial.c:	The STR711 interrupt driven serial driver
-	  finally works after some extradinary measures to handle missed interrupts.
-	  NSH is fully functional on the Olimex STR-P711 board.
-	* example/nsh: Moved architecture specific files from NSH directory to board-
-	  specific directories.
-	* config/olimex-strp711/src/up_nsh.c:  Add an NSH board specific directory for
-	  for the Olimex STR7P11 board.
-	* Fixed build of LM3X6918 using the CodeSourcery Windows native toolchain.	There
-	  were lots of issues with Cygwin paths and Cygwin symbolic links.	These changes
-	  may work with the devarmKIT as well, but that remains untested.
-	* The NXP LPC2148 and STR711 targets can now also be built using the CodeSourcery
-	  or devkitARM Windows native toolchains.
-
-0.4.9 2009-06-26 Gregory Nutt <gnutt@nuttx.org>
-
-	* Add strtoll() and strtoull(); Add macros for atol() and atoll().
-	* dup() and dup2() will now clone socket descriptors
-	* All socket descriptors are now cloned when a new task is started via
-	  task_create().
-	* Add configuration options to suppress or eliminate cloning of file
-	  and/or socket descriptors when a new task is started by task_create():
-	  CONFIG_FDCLONE_DISABLE, CONFIG_FDCLONE_STDIO, CONFIG_SDCLONE_DISABLE.
-	* Use of C++ reserved word 'private' in C header files causes problems
-	  for C++ that include them.
-	* Added 'binfmt' support to allow execution of programs in a file system,
-	  binding to NuttX symbols. A custom format call NXFLAT is used; this
-	  derives from http://xflat.sourceforge.net.  At present is supports on
-	  XIP execution from ROMFS file systems.  Initial check-in is untested
-	  and probably breaks many builds.
-	* examples/lib: Added qsort()
-	* examples/nxflat: Added support for symbol tables
-	* Correct logic that creates compiler include paths.  On Cygwin, the
-	  include paths for Cygwin-based GCC were being converted to windows
-	  native paths.  That causes many problems -- breaking dependencies
-	  for one.
-	* Fixed an important bug in ROMFS.	The initial XIP offset was set
-	  incorrectly so if sector zero was read first, there was a bad read.
-	  I don't know how it worked before.
-	* arch/arm/src/common/up_use_stack.c.  Fixed a fatal stack setup error.
-	  This file has been around for a long time, but I don't think it has
-	  every been used before (i.e., prior to the NXFLAT logic)
-
-0.4.10 2009-08-08 Gregory Nutt <gnutt@nuttx.org>
-
-	* lib/: Added some basic regex-subset, pattern matching functions
-	* lib/: Greatly simplified mktime() and gmtime_r().  The Gregorian and
-	  Julian time calculations were interesting, but not necessary in the
-	  typical embeddd system.
-	* sched/: Added gettimeofday().  This implementation is simply a thin
-	  wrapper around clock_gettimer().
-	* lib/: Add gmtime(), localtime(), and strftime()
-	* binfmt/: Add exec().	This is just a wrapper that executes both
-	  load_ and exec_module() in a more familiar manner.  It is not consistent
-	  with more standard exec() functions, however, because (1) it returns
-	  and (2) it requires symbol table arguments.
-	* lib/: Add fileno()
-	* examples/ostest: Several of the tests used a big, hard-coded stack size
-	  when creating test threads (16K stacksize).	The stack size should
-	  be controlled by the .config file or the OSTest won't work on platforms
-	  with memory constraints.
-	* netutils/thttpd: An initial port of Jeff Poskanzer's THTTPD HTTP server.
-	  See http://acme.com/software/thttpd/.
-	* examples/thttpd: A basic test program for THTTPD
-	* configs/eagle100/thttpd: A build configuration for THTTPD on the Micromint
-	  Eagle-100 LMS6918 (Cortex-M3) board.
-	* configs/ntosd-dm320/thttpd: A build configuration for THTTPD on the Neuros
-	  DM320 platform.
-	* lib/: Added strstr() and strpbrk().
-	* net/recvfrom.c and net/accept(): Sockets now support some non-blocking
-	  operations, specifically for (1) TCP/IP read operations when read-ahead
-	  buffering is enabled, and (2) TCP/IP accept() operations when TCP/IP
-	  connection backlog is enabled.
-	* fs/fs_fcntl.c and net/net_vfcntl.c: Minimal support provided for fcntl().
-	  It can, at least, be used to mark sockets as blocking or non-blocking.
-	* net/net_close.c: Fix bug in close().	If reference count not set to zero
-	  then uip_tcpfree() will assert when DEBUG is enabled.
-	* net/accept.c: Fix bug in accept().  The logic expected parts of the
-	  return address structure to be initialized or it would return an error.
-
-0.4.11 2009-09-16 Gregory Nutt <gnutt@nuttx.org>
-
-	* fs/fs_read.c and fs/fs_write.c.  read() and write() to socket is the
-	  same as recv() and send() with flags = 0.  Fixed!
-	* net/recvfrom.c: Fix errors in return value from non-blocking socket read.
-	* lib/lib_strcasecmp.c and lib/lib_strncasecmp.c.  Use of post-incremented
-	  argument to macro caused strcasecmp() and strncasecmp() to fail.
-	* lib/lib_strstr.c:  Length of substring off by one causes false alarm
-	  sub-string matches.
-	* arch/arm/src/lm3s/lm3s_ethernet.c: Fix errors in LMS6918 FIFO length
-	  handling.  (1) The incorrect size of the Ethernet header was being
-	  subtracted on outgoing messages (4 vs 14), which caused outgoing messages to
-	  be a little too long.  (2) The size of incoming FIFO messages is 6 bytes
-	  larger than it expected (2 for the length and 4 for the FCS).  The unhandled
-	  extra two bytes of length cause the driver to sometimes read one too many
-	  words from the received FIFO (corrupting the next queued receive packet,
-	  if any).
-	* net/net_poll.c and net/uip/uip_tcpbacklog.c.	Fixed an important race condition
-	  bug in polling for connections.  The logic worked if the poll was inplace
-	  before the connection was received; but the poll failed to awaken if the
-	  connection was already pending in the backlog when poll() was called.
-	* net/net_close.c.	Fixed another important TCP/IP race condition bug:	If
-	  the host closes the TCP connection just before the target calls close(), then
-	  the close operation may hang indefinitely!
-	* net/net_tcppoll.c.  Removed an unnecessary check for outstanding, un-ACKed
-	  data.  The NuttX socket layer keeps track of ACKs and doesn't need this check;
-	  removing the check should improve write throughput
-	* Add DEBUG configuration option to enable debug console output without disabling
-	  optimization (and vice versa)
-	* Changed lots of occurrences of debug macro dbg() to lldbg().  dbg() uses
-	  stdout to output debug data.	That works fine unless (1) the dbg() macro
-	  is interrupt logic and the interrupted task has redirected stdout!  Most
-	  changes were in uIP.
-	* net/uip/uip_tcpinput.c.  Connection reference count was not being set correctly
-	  when a socket is created by accepting a new connection.  Since the reference
-	  count is bad, such sockets are not successfully duplicated when being passed
-	  to new tasks.
-	* net/net_clone.c.	Similarly, after a socket is cloned, its reference count
-	  was not being initialized.
-	* lib/lib_strstr.c.  Improperly incremented pointer could cause comparison
-	  failures.
-	* net/.  Connection reference count must always be set to zero before calling
-	  uip_tcpfree() or it could trigger a DEBUGASSERT that verifies that the
-	  reference count is zero before freeing a connection structure.
-	* net/uip/uip_listen.c.  uip_accept() consulted the wrong list to find the
-	  listener on a socket.  The previous logic worked most of the time, but
-	  occasionally picked the wrong listener.
-	* net/net_close.c and net/net_sockets.c.  Sockets were not being closed
-	  when a task exits.  If many server tasks are created and exit without closing
-	  sockets (such as with CGI tasks), then eventually, you will run out of sockets.
-	* netutils/thttpd.	Basic functionality of THTTPD is complete.	This includes
-	  serving up files from a file system and executing NXFLAT-based CGI programs
-	  and pipe the stdout back to the HTTP client.
-
-0.4.12 2009-10-17 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32 and configs/stm3210e-eval.  Added basic support for the
-	  STMicro STM32, Cortex-M3 MCU.  The specific port is to the STMicro STM3210E-EVAL
-	  development board based around the STM32F103ZET6 MCU.
-	* configs/stm3210e-eval/RIDE.  Added a basic STMicro RIDE7 project that can be
-	  used to perform basic STM32 board bring-up (due to RIDE7 size limitations, it
-	  cannot be used for the full NuttX bring-up).
-	* configs/stm3210e-eval/ostest.  The STM32 now passes the basic NuttX OS test
-	  at examples/ostest.  The rest should be a piece of cake.
-	* configs/stm3210e-eval/nsh.  Added NuttShell (NSH) example.
-	* configs/stm3210e-eval/src/stm32102e-internal.h.  Fix on-board LED GPIO definitions.
-	* arch/arm/src/stm32/src/stm32/stm32_dma.c.  Added DMA channel support for the STM32
-	* arch/arm/src/stm32/src/stm32/stm32_spi.c.  Added a DMA-based SPI driver for the STM32.
-	* arch/arm/src/stm32/src/stm32/stm32_serial.c.	Finished interrupt-driven,
-	  USART console driver.  This makes NSH work perfectly.
-	* Things left to do for the STM32 deferred to the 0.4.13 release:  USB device driver,
-	  LCD driver and NX bringup on the eval board's display and MicroSD support.  An SPI
-	  driver was included in the 0.4.12 release, but is not yet tested.
-
-0.4.13 2009-11-04 Gregory Nutt <gnutt@nuttx.org>
-
-	* include/nuttx/mtd.h.	Added a simple interface definition to support some
-	  FLASH, EEPROM, NVRAM, etc. devices.
-	* driver/mtd/m25px.c.  Added a driver for SPI based FLASH parts M25P64 and M25P128.
-	* configs/stm3210e-eval/usbserial.	Add a USB serial configuration for the STM32.
-	  Depends on the STM32 USB driver.
-	* arch/arm/src/cortexm3/up_switchcontext.S & up_svccall.c.	Made an improvement
-	  to context switching.  There are two types of context switches:  interrupt
-	  context switches and background/user context switches.  This change should
-	  improve the performance of those background/user context switches by a factor
-	  of about two.
-	* arch/arm/src/stm32/:  Fix several typos in the serial logic.	It turns out
-	  that these typose don't make any difference as long as you use only one
-	  serial port and all uarts are configured the same.  But the typos are bugs
-	  waiting to happen in any other configuration.
-	* arch/arm/src/stm32/: You have to configure CTS/RTS function pins for USART
-	  2 and USART 3 even if you are not using flow control.
-	* arch/arm/src/stm32/stm32_usbdev.c: Added a USB device-side driver for the
-	  STM32.  NOTE: This is an early release of the USB driver.  There is at least
-	  one known issue. The examples/usbserial test only executes correctly under
-	  certain conditions (see the full bug description in the TODO list).
-	* arch/arm/src/stm32/stm32_rcc.c: Fixed an error in clock initialization.
-	  On some boards (none of mine), the HSE (high speed external clock) delay
-	  loop times out if the optimization level is high. The STM32 then falls
-	  back to the HSI (internal clock), and the system clock is too slow by a
-	  factor of 11.1%.	This was fixed by simply add the volatile storage class
-	  to the timeout loop counter
-	* arch/arm/src/stm32/stm32_irq.c: Fixed a critical bug in the interrupt
-	  control logic.  The wrong register was being used for interrupts in a
-	  certain range.  Worked fine until you try to use an interrupt in that
-	  range!
-
-4.14 2009-12-02 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32/stm32_gpio.c: Add support for configure an input GPIO
-	  to generate an EXTI interrupt.
-	* config/stm3210e-eval/src/up_buttons.c: Add support for on-board buttons.
-	* include/nuttx/rwbuffer.h: Add generic support for read-ahead buffering
-	  and write buffering that can be used in any block driver.
-	* include/nuttx/wqueue.h: Added a generic worker thread that can used to
-	  defer processing from an interrupt to a task.
-	* include/nuttx/sdio.h: Defines a generic SD/SDIO interface can can be
-	  bound to a MMC/SD driver to provide SDIO-based MMC/SD support.
-	* drivers/mmcsd/mmcsd_sdio.c: Provides an SDIO-based MMC/SD driver.
-	* arch/arm/src/stm32/stm32_sdio.c: Provides an STM32 implementation of
-	  the SDIO interface defined in include/nuttx/sdio.h.
-	* fs/fs_mount.c: Correct error handling logic.  If the bind() method
-	  fails, then a reserved node is left in the tree.	This causes subsequent
-	  attempts to mount at the location to fail (reporting that the node
-	  already exists).	This is a problem for block drivers for removable
-	  media: The bind method could fail repeatedly until media is inserted.
-	* arch/arm/src/stm32/chip.h & stm32_dma.c: Fixed several definitions
-	  that can cause compilation errors when DMA2 is enabled.
-	* arch/arm/src/stm32/stm32_dma.c: Integrated and debugged STM32 DMA
-	  functionality that was added in 0.4.12.
-	* configs/stm3210e-eval/usbstorage: Add a configuration to exercise
-	  the STM32 with the USB mass storage device class example
-	  (examples/usbstorage).
-	* configs/mcu123-lpc214x/up_usbstrg: Move LPC-specific code from
-	  examples/usbstorage to configs/mcu123-lpc214x.
-	* configs/stm321e-eval/up_usbstrg: Add STM32-specific logic for the
-	  examples/usbstorage test.
-	* arch/arm/src/stm32/stm32_usbdev.c: Fix bugs in STM32 USB device-side
-	  driver:  (1) Need to disconnect after reset received, (2) Status setup
-	  to recover from stall on TX endpoint.
-
-5.0 2009-12-21 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/hc: Adding framework to support m68hc11/12
-	* configs/demo9s12ne64: Configuration to support Freescale DEMO9S12NE64
-	  development board (MC9S12NE64 m68hcs12 processor).
-	* drivers/mtd/ftl.c: A FLASH translation layer (FTL) has been implemented.
-	  This layer will convert a FLASH MTD interface into a block driver that
-	  can be used with any file system.  Good performance of this layer will
-	  depend upon functioning write buffer support!
-	  NOTE: FTL support is untested as of the initial check-in.
-	* Numerous minor changes for m68hc12 to eliminate compilation errors and
-	  warnings due to the fact that it uses 16-bit integer types and for casts
-	  between uint32 (32-bits) and an mc68hc12 pointer (16-bits).
-	* sys/types:  Size of off_t and blkcnt_t should not depend on size of
-	  int in the architecture;  Removed non-standard type STATUS
-	* include/: Added header files stdint.h, stdbool.h, cxx/cstdint, and
-	  cxx/cstdbool
-	* Changed ALL references to non-standard fixed-size types (like uint32,
-	  ubyte, etc.) to standard types (like uint32_t, uint8_t, etc.) from
-	  stdint.h.  Use type bool and {true, false} from stdbool.  This effected
-	  most of the files in the system!  Almost all configurations have been
-	  re-built and many have been re-verified in order to get confidence in
-	  these changes.
-	* graphics/ and examples/nx: Fix numerous build errors that have been
-	  introduced lately.  NXGL has suffered some bit-rot from not being used
-	  in some of the most recent ports.
-	* The misc/pascal NuttX add-on package has been updated to use the new
-	  standard types from stdint.h and stdbool.h and re-integrated with NuttX.
-	  The released pascal-2.0 will be the first version that contains the
-	  compatible changes.
-	* arch/arm/src/lm3s/lm3s_ethernet.c: Fixed an important bug in the LM3S
-	  Ethernet driver:  If full packet is received, the packet-too-big check
-	  will fail because it needs to subtract 6 from the packet size (to
-	  account for the 2-byte packet length and the 4-byte packet FCS in the
-	  FIFO).
-	* net/accept.c: Fixed a bad assertion (only happens when debug is enabled).
-	* net/send.c net/uip/uip_tcpseqno.c: Fixed a critical error in the TCP/IP
-	  logic.  The NuttX port of uIP imcludes logic to send data ahead without
-	  waiting for ACKs from the recipient; this greatly improves throughput.
-	  However, the packet sequence number was not being updated correctly and,
-	  as a result, packets were not be ACKed by the recipient and transfers
-	  would sometimes stall.  This is a very important bug fix (in fact, I
-	  don't understand how TCP/IP worked at all without this fix???)
-	* include/nuttx/arch.h and arch/*/common/up_udelay.c: Change argument
-	  of up_udelay() to type useconds_t to avoid warnings when sizeof(int)
-	  is 16-bits.
-	* drivers/mmcsd/*: Add casts in constant expressions to avoid warnings
-	  when sizeof(int) is 16-bits.
-
-5.1 2010-01-30 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lpc313x and arch/arm/include/lpc313x: Added framework
-	  to support the NXP LPC3131.
-	* Add configs/ea3131.  The LPC3131 port for the Embedded Artist EA3131
-	  (LPC3131) is code complete and waiting for me to get hardware in
-	  hand.
-	* arch/arm/src/sam3u, arch/arm/include/sam3u, and configs/sam3u-ek -
-	  Added the basic framework needed to begin a port for the SAM3U-EK
-	  development board.
-	* lib/lib_crc32.c: Add CRC32 logic by Gary S. Brown to lib/.  This is
-	  the larger (but faster) table look-up version of the CRC32 algorithm.
-	* configs/ea3131/tools: Added a tool to create a image suitable for
-	  use with the LPC313x bootloader.
-	* configs/sam3u-3k/ostest: Completed verification of the basic NuttX
-	  OS test for the SAM3U.
-	* arch/arm/src/common/up_createstack: stack was always been cleared
-	  when it was allocated.  This is a good feature for monitoring the
-	  stack during debug, but really hurts thread start-up performance.
-	  Clearing is now done if CONFIG_DEBUG=y only.  Changes was only made
-	  for arm, but really should be made for all architectures.
-	* configs/sam3u/nsh: Added NSH configuration for SAM3U
-
-5.2 2010-03-18 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/sam3u/sam3u_pio.c: Fix an address calculation error
-	  that caused ports B & C to get mapped to the PIOA base address.
-	  This is an important bugfix! (a patch is available)
-	* arch/arm/src/lpc313x/lpc313x_boot.c: Fix an error in the vector
-	  initialization was causing a memory fault.
-	* lib/lib_strtod.c: Add strtod()
-	* lpc3131/ea3131: Several bring fixes submitted by David Hewson.  The
-	  lpc3131 is almost there!  Thanks David!
-	* arch/arm/src/arm/up_head.S: Corrected backward conditional compilation
-	  that selects if vectors are located at 0x0000:0000 or 0xffff:f000.
-	  This fixes the last show stopper bug in the lpc313x bring-up.
-	* configs/ea3131/nsh: Added a NuttShell (NSH) configuration for the
-	  EA3131.
-
-5.3 2010-04-11 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lpc313x/lpc313x_usbdev.c: USB driver for the LPC313x
-	  contributed by David Hewson.
-	* configs/ea3131/src/up_ubstrgc.c, configs/ea3131/usbserial,
-	  configs/ea3131/usbstorage: USB storage and USB serial example support
-	  contributed by David Hewson.
-	* Several important compilation error fixes in lpc313x and (dualspeed) USB
-	  code also contributed by David Hewson.
-	* arch/arm/src/sam3u/sam3u_dmac.c: DMA support for the AT90SAM3U.
-	* arch/arm/src/sam3u/sam3u_hsmci.c: SD memory card support for AT90SAM3U
-	  (Neither the DMA nor the HSMCI driver are functional on the initial checkin).
-	* drivers/usbdev: Several important fixes to the USB mass storage driver
-	  submitted by David Hewson.
-	* configs/olimex-lpc2378, arch/arm/include/lpc2378, and arch/arm/src/lpc2378 -
-	  Basic port of the NXP 2378 on the Olimex board contributed by
-	  Rommel Marcelo.
-	* arch/arm/src/sam3u/sam3u_internal.h: Fixed a critical bug in the AT91SAM3U
-	  PIO decoding.  No PIOs greater than 15 could be used on any port!  Obviously,
-	  no one has been using this port.
-
-5.4 2010-04-23 Gregory Nutt <gnutt@nuttx.org>
-
-	* include/nuttx/lcd.h: Defines an LCD interface.
-	* graphics/nxglib/fb and lcd: Support LCD and framebuffer rasterizers for NX.
-	* configs/sam3u-ek/src/up_lcd.c: LCD driver for LCD on SAM3U-EK development
-	  board.
-	* configs/sam3u-ek/nx: NX graphics configuration for the SAM3U-EK
-
-5.5 2010-05-09 Gregory Nutt <gnutt@nuttx.org>
-
-	* drivers/net/enc28j60.c: Microchip ENC28J60 SPI Ethernet chip driver.
-	  (untested on original check-in).
-	* configs/olimex-str7p11/nettest: examples/nettest configuration using
-	  the ENC28J60 driver on the Olimex STMicro STR-P711.
-	  (unverified on original check-in)
-	* configs/olimex-str7p11/src/up_enc28j60.c: Add ENC28J60 initialization
-	  logic.
-	* configs/olimex-str7p11/src/up_spi.c: Fixed some bugs; added support
-	  for ENC28J60.
-	* arch/arm/src/str7x/str7x_xti.c: Add basic XTI support (external
-	  interrupts).
-	* arch/arm/src/lm3s and arch/arm/include/lm3s: Add definitions for
-	  LM3S6965
-	* configs/lm3s6965-ek: Add configuration for Stellaris LM3S6965
-	  Evaluation Kit (including basic examples/ostest configuration)
-	* lib/lib_dtoa.c and lib/lib_dtoa.c: printf will not print floating
-	  point values if you select CONFIG_LIBC_FLOATINGPOINT in your
-	  configuration file.  Contributed by Yolande Cates.  NOTE:  these
-	  floating point operations have not been well tested and may not
-	  be portable to all floating point implementations.
-	* configs/lm3s6965-ek/nsh: Added NuttShell (NSH) configuration for
-	  the LM3S6965 Evaluation Kit.  Includes both serial and telnet
-	  interfaces.
-	* net/net_close.c: Correct a UDP reference counting error
-
-5.6 2010-06-05 Gregory Nutt <gnutt@nuttx.org>
-
-	* drivers/lcd/p14201.c: Driver for RiT P14201 series 128x96 4-bit OLED.
-	* configs/lm3s6965-ek/nx: NX graphics configuration for the LM3S6965
-	  Ethernet Evaluation Kit.
-	* graphics/: Numerous fixes to get the P14201 4-bpp grayscale display
-	  working (there may still be some minor issues .. see the TODO list).
-	* arch/arm/include/lpc17xx and arch/arm/src/lpc17xxx: Began port for
-	  NXP LPC1768.  As of the 5.6 release, there is a complete set of
-	  LPC17xx header files defining all bits in all LPC17xx registers,
-	  but little else (I still do not have hardware in hand).
-	* drivers/mtd/m25px.c: Add support for M25P1 flash part (See NOTE)
-	* include/nuttx/i2c.h: Extended I2C interface definition to handle
-	  multiple transfers (See NOTE).
-	* include/nuttx/usbdev.h: Corrected an important macro definition
-	  needed to correctly handle USB null packet transfers (See NOTE).
-	* arch/arm/src/lpc313x: New drivers: I2C and SPI.  Plus several
-	  important LPC313x USB bug fixes (See NOTE).
-
-	NOTE: Contributed by David Hewson.
-
-5.7 2010-06-22 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/nucleus2g: Add ostest configuration for the Nucleus 2G
-	  LPC1768 board from 2G Engineering (http://www.2g-eng.com/)
-	* arch/arm/src/lpc17xx: Added basic LPC17xx boot-up logic,
-	  interrupt handling, and GPIO configuration.
-	* configs/nucleus2g/ostest: Completed bring-up of LPC1768 on
-	  the Nucleus2G board using the examples/ostest
-	* configs/nucleus2g/nsh: Added and verified a NuttShell (NSH)
-	  configuration for the LPC1768 on the Nucleus2G board.
-
-5.8 2010-07-18 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/nucleus2g/src/up_nsh.c and up_ssp.c: Add support
-	  for SPI-based MMC/SD cards and integrate into the NSH example.
-	* arch/arm/src/lm3s/lm3s_vectors.S: Correct vectors for GPIOC & D
-	  interrupts.
-	* arch/arm/src/lpc17xx/lpc17_clockconfig.c: Power was not being
-	  provided to GPIO module.  This is a critical bugfix!
-	* arch/arm/src/lpc17xx/lpc17_serial.c: Improved logic to handle
-	  missed TX interrupts.
-	* arch/arm/src/lpc17xx/lpc17_ssp.c: Fix a hard fault during SSP
-	  initialization.
-	* configs/nucleus2g/src/up_led.c: Change how LEDs are controlled
-	  so that they can be used both for NuttX instrumentation and
-	  by application software.
-	* include/net/uip/igmp.h and uip-igmp.h: Add header files ini
-	  preparation for NuttX IGMP support
-	* net/uip/uip_igmp*.c: Add IGMP support (untested on initial
-	  checkin).
-	* examples/igmp: Add a trivial test for IGMP (much more is needed)
-	* configs/nucleus2g/usbserial and usbstorage: Add USB configurations
-	  for testing purposes.
-	* arch/arm/src/common/up_internal.h, cortexm3/up_assert.c,
-	  */*_vectors.S: Correct compilations errors when CONFIG_ARCH_INTERRUPTSTACK
-	  is enabled (feature still not tested)
-
-5.9 2010-08-25 Gregory Nutt <gnutt@nuttx.org>
-
-	* examples/nsh/nsh_telnetd.c: Fix compilation errors that happen
-	  when both DHCPC and TELNETD are enabled in the Nuttshell.
-	* graphics/nxglib/fb/nxglib_moverectangle.c: Fix a logic error
-	  that caused an uninitialized variable warning.  I still don't
-	  have a test to prove that the changes are correct.
-	* configs/olimex-lpc2378: Add support for the CodeSourcery toolchain
-	  under Linux (contributed by Alan Carvalho de Assis).
-	* arch/arm/src/lpc17xx/lpc17_gpio.c: Fix an important GPIO configuration
-	  bug:  When attempting to set no pull-up or pull-down (floating),
-	  it would, instead, select pull-down.
-	* arch/arm/src/lm3s/lm3s_gpioirq.c: Fix warning for returning a value
-	  from functions returning void (contributed by Tiago Maluta).
-	* netutils/dhcpc/dhcpc.c: lease_time was not in host order
-	* examples/uip/main.c: if DHCPC is selected, this example now shows
-	  the assigned IP address.
-	* arch/arm/src/lm3s and arch/arm/include/lm3s: Definitions for the
-	  TI LM3S9B96 contributed by Tiago Maluta.
-	* arch/arm/src/lm3s/lm3s_gioirq.c: Fix a logic error in the address
-	  table lookup.
-	* arch/arm/src/lm3s/lm3s_gioirq.c: Also needs to enable the global
-	  GPIO interrupts.
-	* arch/arm/src/lm3s/lm3s_internal.h and lm3s_gpio.c: Fixed the encoding
-	  of GPIO port number that limited support for GPIO ports to 8
-	* sched/pg_*.c and *.c and include/nuttx/page.h: Implemented the
-	  common, core logic for on-demand paging. See
-	  http://www.nuttx.org/NuttXDemandPaging.html for details.
-	* drivers/usbdev/usbdev_serial.c: Correct compilation errors that
-	  occur if CONFIG_USBDEV_DUALSPEED is selected.
-	* configs/ea3131/pgnsh: Add an NSH configuration with on-demand paging
-	  enabled.  This is not expected to be a functionality configuration (at
-	  least not yet); it was created in order to debug the on-demand paging
-	  feature.
-	* configs/ntosd-dm320/*/Make.defs: Codesourcery and devkitARM toolchains
-	  now supported for the Neuros OSD.
-	* configs/ntosd-dm320 and arch/arm/src/dm320: Add support for the
-	  Neuros production OSD (changes contributed by bf.nuttx).
-
-5.10 2010-09-07 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/ea3131/locked: Create logic to support a two pass build
-	  process:  The first pass forces critical logic into the locked text
-	  region, the second pass builds the NuttX executable more-or-less as
-	  normal.
-	* Makefile, arch/arm/src/Makefile, configs/ea3131: Add logic to
-	  support a two-pass final link.  This logic is only in place in
-	  the arch/arm/src/Makefile for now.
-	* arch/arm/src/lpc17xx/lpc17_internal.h: Add missing parentheses in
-	  macros definitions (patch submitted by Tiago Maluta).
-	* Documents/NuttxPortingGuide.html, configs/README.txt, etc. -
-	  Replaced CONFIG_EXAMPLE with CONFIG_APP_DIR (see documents for
-	  description).  This allows NuttX application code to be built
-	  outside of the examples/ directory.
-
-	  For people who have their own configurations and/or Makefiles,
-	  you will need to make a couple of changes:
-
-	  - Replace all occurrences of CONFIG_EXAMPLE=foobar with
-	    CONFIG_APP_DIR=examples/foobar in all of the configuration
-	    files.
-	  - Replace any occurrences of examples/$(CONFIG_EXAMPLE) with
-	    $(CONFIG_APP_DIR)
-	  - Replace any occurrences of lib$(CONFIG_EXAMPLE)$(LIBEXT)
-	    with libapp$(LIBEXT) in your Makefiles.
-	  - Check any other occurrences of CONFIG_EXAMPLE.
-
-	* arch/arm/src/lpc313x/lpc313x_spi.c: Fix compilation error when
-	  when CONFIG_DEBUG is enabled.
-	* arch/arm/src/lm3s and arch/arm/include/lm3s: Support for the
-	  lm3s8962 contributed by Larry Arnold.
-	* configs/lm328962-ek: Support for the TI/Stellaris EKC-LM3S8962
-	  board (also contributed by Larry Arnold).
-	* arch/arm/src/lpc313x/lpc313x_boot.c: The call to lpc313x_boardinitialized()
-	  should not be conditioned on CONFIG_ARCH_LEDs being defined!
-	* arch/arm/src/lpc313x/: APB0 and APB1 cannot lie in different
-	  sections; they are too close together.
-	* arch/arm/src/lpc313x/lpc13x_boot.c: Resetting all of the clocking
-	  had a side effect of wiping out the first 6 words of memory where the
-	  interrupt vectors are located (and also not resetting the fractional
-	  dividers).  This is not usually noticeable because the IRQ vectors
-	  are after this point, but really causes problems if you want to handle
-	  data and prefectch aborts which are within this zeroed region.
-
-5.11 2010-10-01 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/ea3131/src/up_fillpage.c: Added new configuration item
-	  CONFIG_PAGING_BINPATH.  If CONFIG_PAGING_BINPATH is defined, then it
-	  is the full path to a file on a mounted file system that contains
-	  a binary image of the NuttX executable.  Pages will be filled by
-	  reading from offsets into this file that correspond to virtual
-	  fault addresses.  up_fillpage.c implements logic to perform page
-	  files using the CONFIG_PAGING_BINPATH file.
-	* configs/mbed: Add configuration to support the mbed.org LPC1768
-	  board (Contributed by Dave Marples).
-	* sched/sem_wait.c and sem_waitirq.c: Eliminate a race condition
-	  that can occur when a semaphore wait is interrupt by a signal.
-	  (see email thread: https://groups.yahoo.com/neo/groups/nuttx/conversations/messages/530)
-	* drivers/mtd/at45db.c: Add a driver for the Atmel AT45DB161D 4Mbit
-	  SPI FLASH part (untested on initial check-in).
-	* arch/arm/src/lm3s and arch/arm/include/lm3s: Corrections for the
-	  lm3s8962 port contributed by Larry Arnold.  That port is purported
-	  to work correctly with these changes in place.
-	* examples/ostest/prioinherit.c: Need to reinitialize globals if
-	  test is ran repeatedly in a loop.
-	* configs/ez80f910200zco: Updated to used ZDS-II 4.11.1
-
-5.12 2010-10-26 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/avr: Add a place to support AVR family processors.
-	* arch/avr/include/avr32 and arch/avr/src/avr32: Add support for AVR32
-	  (all of the AVR32 is a work in progress).
-	* arch/avr/include/at32uc3 and arch/avr/src/at32uc3: Add support
-	  for the AVR32 UC3A/B family of AVR32 MCUs.
-	* configs/avr32dev1: Add support for the Atmel AVR32DEV1 board featuring
-	  the AT32UC3B0256 MCU.  This board is produced by www.mcuzone.com.
-	* include/stdlib.h, lib/Makefile, lib/lib_abs.c, lib/lib_labs.c,
-	  lib_labs.c, lib_llabs.c, lib_imaxabs.c: Add abs(), labs(), llabs(), and
-	  imaxabs().
-	* Add include/inttypes.h
-	* arch/hc/src/mc9s12ne64: This hcs12 port grew a few more files.  But it
-	  is still a long way from complete.
-	* arch/*/src/*/*_sigdeliver.c: Fixed a serious error in the signal
-	  trampoline logic.  Essentially, interrupts are re-enabled while the
-	  signal handler executes, but the logic to re-disable the interrupts
-	  before returning from the signal handler trampoline was missing.  Under
-	  certain circumstances, this can cause stack corruption.  This was
-	  discovered by David Hewson on an ARM9 platform, but since the code
-	  has been leveraged, the bug has been propagated from ARM to Cortex-M3,
-	  AVR32, M16C, SH1, ZNEO, eZ80, Z8, and Z80 -- almost every architecture.
-	  The correction has been incorporated for all architectures but only
-	  verified on a few.
-
-5.13 2010-11-09 Gregory Nutt <gnutt@nuttx.org>
-
-	* lib/lib_strnlen.c: Added POSIX 2008 strnlen() function.  Contributed
-	  by Michael Hrabanek.
-	* Fix wild, consistent naming error.  For some reason, I called the at32uc3*
-	  parts at91uc* everywhere.  Fixed by changing lots of files and directories.
-	* configs/avr32dev1/ostest: The AVR32 port now successfully passes the
-	  examples/ostest.  We have a good AVR32 port!
-	* configs/avr32dev1/nsh: Added a configuration to support the NuttShell
-	  (NSH). As of this writing, here is a problem receiving serial data (this
-	  is, very likely, my hardware setup).
-	* lib/lib_open.c: Fix an error in fdopen when a valid file descriptor does
-	  not refer to an open file.
-	* configs/olimex-lpc1766stk: Add support for the Olimex LPC1766-STK
-	  development board.  The OS test and NSH configurations (only) have been
-	  verified.
-
-5.14 2010-11-27 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/olimex-lpc1766stk/nettest: Add examples/nettest configuration to
-	  verify the LPC17xx Ethernet driver currently under development.
-	* arch/arm/src/lpc17xx/lpc17xx_ethernet.c/.h: Began development of
-	  the LPC17xx Ethernet driver.  Driver in CVS functional after 2010-11-23.
-	* sched/timer_settime.c: Fix an error in set-up of a one-shot POSIX timer.  It
-	  was using the repititive timer value (which is zero in the one-shot case),
-	  always resulting in a 10Ms timer!  Found and fixed by Wilton Tong.
-	* arch/arm/src/lpc17xx/lpc17_vector.S, stm32/stm32_vector.S, lm3s/lm3s_vector.S,
-	  sam3u/sam3u_vector.S: Fixed a hard fault problem that can occur if certain
-	  types of interrupts are pending at the time another interrupt returns
-	  (SYSTICK).  This has not been verified on all platforms, but is a critical
-	  fixed that is needed by all Cortex-M3 NuttX users.
-	* configs/olimex-lpc1766stk/thttpd: Add a THTTPD configuration for the
-	  Olimex LPC2766-STK board. Verified successfully.
-	* net/uip/uip_tcpappsend.c: Correct an important logic bug in some uIP state
-	  data the is used to manage retransmissions.  The uIP logic was incompatible
-	  with the retransmission logic of net/send.c in one place.  The final error
-	  was that the final packet in a sequence of packets was too large!  In the
-	  THTTPD example, this would leave some garbage at the bottom of the display
-	  (or worse).  I don't know why I haven't see this bug before???
-	* net/uip/uip_tcpinput.c: The change to uip_tcpappsend.c unmasked an
-	  additional error in the TCP sequence number handling.  This sympom was that
-	  the send() function would hang with outstanding, unacknowledged data (with
-	  no re-transmit requests).  The was due to differences in sequence number
-	  handling in send() and in uip_tcpinput.c; uip_tcpinput.c thought (incorrectly)
-	  that all of the bytes were acknowledged; send.c knew that they were not.
-
-5.15 2010-12-12 Gregory Nutt <gnutt@nuttx.org>
-
-	* net/uip/uip_tcpaddsend.c and net/send.c: Another place where the TCP sequence
-	  number problem "fixed" in 5.14 might occur.
-	* net/send.c: Check if the destination IP address is in the ARP table.  If
-	  not, then don't consider the packet sent.  It won't be, an ARP packet will go
-	  out instead.  This improves behavior, for example, on the first GET request
-	  from a browser.
-	* arch/arm/src/lpc17xx/lpc17_emacram.h and lpc17_allocateheap.c: The Ethernet
-	  logic was using all of AHB SRAM Bank0 for Ethernet packet buffers (16K).  An
-	  option was added to limit the amount of SRAM used for packet buffering and to
-	  re-use any extra Bank0 memory for heap.  configs/olimex-lpc1766stk/nettest
-	  now uses only 8K at the beginning of Bank0; the 8K at the end of Bank0 is
-	  included in the heap
-	* arch/arm/src/lpc17xx/lpc17_ssp.c: Fix compilation errors when SSP1 is
-	  selected.
-	* configs/olimex-lpc1766stk/nsh: Enable network and SD/MMC card support in
-	  NSH.  Networking and telnetd interface as well as SPI-based microSD are
-	  now functional.
-	* examples/nsh/nsh_netinit.c: Fix NSH bug.  If CONFIG_NET is selected, but
-	  CONFIG_EXAMPLES_NSH_TELNETD is not selected, then the network is never
-	  initialized and bad things happen if you try to ping.
-	* drivers/lcd: Add header files for the Phillips PCF8833 LCD controller and
-	  for the Epson S1D15G10 LCD controller.  A driver for the Nokia 6100 LCD is
-	  coming.
-	* include/nuttx/spi.h and almost all other SPI files: Added an optional
-	  cmddata() method to the SPI interface.  Some devices require an additional
-	  out-of-band bit to specify if the next word sent to the device is a command
-	  or data. This is typical, for example, in "9-bit" displays where the 9th bit
-	  is the CMD/DATA bit. The cmddata method provides selection of command or data.
-	* drivers/lcd/p14201.c: Now uses the cmddata() method of the SPI interface.
-	* arch/arm/src/lpc17xx/lpc17_usbdev.c: LPC17xx USB driver now appears to
-	  to be fully functional.  examples/usbstorage configuration verified (the
-	  examples/usbserial configuration is untested).
-	* drivers/usbdev/usbserial.c and usbstorage.c: All USB class drivers need
-	  to call DEV_CONNECT() when they are ready to be enumerated.  That is,
-	  (1) initially when bound to the USB driver, and (2) after a USB reset.
-	* drivers/lcd/nokia6100.c: A driver for the Nokia 6100 LCD.  This driver
-	  has not be verified as of the initial check-in.
-	* configs/olimex-lpc1766stk/nx: A NX graphics configuration for the Olimex
-	  LPC1766-STK board using the Nokia 6100 LCD driver.  This configuration has
-	  not been verified as of the initial check-in.
-	* include/nuttx/spi.h: the SPI_SETBITS macro was calling the setmode method.
-	  This is a very important bug-fix in some usages.
-
-5.16 2011-01-10 Gregory Nutt <gnutt@nuttx.org>
-
-	* include/nuttx/usb: Created new directory.  Moved all usb-related header
-	  files to this new directory.  Created a skeleton for a new USB host header
-	  file
-	* drivers/usbhost: Add USB host "registry" where connect devices can be
-	  matched with the correct USB class driver.
-	* arc/arc/src/lpc17xx/lpc17_usbhost.c: Add a simple USB host driver for
-	  the NXP lpc17xx.
-	* drivers/usbhost: Add generic USB device enumeration logic.
-	* drivers/usbhost: Add a USB host class driver for the (Bulk-Only) USB
-	  Mass Storage Class.
-
-5.17 2011-01-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* include/nuttx/usb: rename usb_storage.h to storage.h.
-	* arch/arm/src/lpc17xx/lpc17_usbhost.c: Add support for low-speed devices.
-	* drivers/usbhost/usbhost_skeleton.c: Template for new class drivers
-	* include/nuttx/usb/hid.h and drivers/usbhost/usbhost_hidkbd.c: New
-	  files for HID keyboard support.
-	* arch/arm/src/lpc17xx/lpc17_usbhost.c: Will now handle multiple
-	  concurrent transfers on different endpoints (still only one TD per
-	  endpoint).  All methods are protected from re-entrancy; lots of re-
-	  structuring in preparation for interrupt endpoint support.
-	* arch/arm/src/lpc17xx/lpc17_usbhost.c: Add support for periodic
-	  interrupt transfers.
-	* examples/hidkbd: Added a simple test for the USB host HID keyboard
-	  class driver.
-	* configs/olimex-lpc1766stk/hidkbd: Added a configuration to build the
-	  USB host HID keyboard class driver test for the LPC17xx.
-	* Ran the tool CppCheck (http://sourceforge.net/apps/mediawiki/cppcheck) and
-	  fixed several errors in the code identified by the tool.
-
-5.18 2011-02-27 Gregory Nutt <gnutt@nuttx.org>
-
-	* Incorporate several uIP patches from http://gitweb.aeruder.net/?p=uip.git;a=summary.
-	  - Lost SYNACK causes connection reset
-	  - Fix missing UDP stats for sent/received packets
-	  - Added support for Cygwin as development/test platform.
-	* configs/demo9s12ne64: Integrate new buildroot-1.9 m8s12x toolchain.
-	* 'uname -o' is used throughout the build logic in bash scripts and also in
-	  Make.defs files in order to distinguish between Cygwin and Linux.  However,
-	  the -o option is not standard and is not supported under, for example, OS-X or
-	  Solaris.  This was solved by changing all 'uname -o' references to the more
-	  complex:  'uname -o 2>/dev/null || echo "Other"'
-	* drivers/usbhost/usbhost_enumerate.c: Add logic to get the VID and PID.  This
-	  is necessary in order to support vendor-specific USB devices.
-	* examples/wlan, configs/olimex-lpc1766stk/wlan, drivers/usbhost/usbhost_rtl8187.c,
-	  Add infrastructure to support RTL18187 wireless USB.
-	* configs/nucleus2g: backed out USB host changes... wrong board.
-	* Renamed arc/hc/include/mc9s12ne64 and src/mc9s12ne64 to m9s12.  That name is
-	  shorter and more general.
-	* The NuttX repository has been converted to SVN and can now be found here
-	  http://svn.code.sf.net/p/nuttx/code/trunk/
-	* configs/mbed/hidkbd: Added USB host support for the mbed LPC1768 board; add
-	  a USB host HID keyboard configuration.
-	* drivers/usbhost/hid_parser.c: Leverages the LUFA HID parser written by
-	  Dean Camera.
-	* examples/nsh: Correct an usage of getopt(): If you stop calling getopt()
-	  before all parameters are parsed, you can leave getopt() in a strange state.
-	* include/nuttx/video/fb.h: Restore missing RGB type that was accidentally removed
-	  when Nokia 6100 support was added.
-	* Rename arch/pjrc-8051 to arch/8051
-	* configs/ne64badge: Add a configuration for the Future Electronics Group
-	  NE64 Badge development board (Freescale MC9S12NE64)
-	* Changes contributed by Uros Platise:
-	  - Add support for the STM32F103RET6
-	  - configs/vsn: Support for the ISOTEL NetClamps VSN V1.2 ready2go sensor
-	    network platform
-	* arch/hc, configs/ne64badge: Development is complete for the Freescale
-	  mc9s12ne64 on the Future Electronics Group NE64 /PoE Badge board.  Howeve,
-	  this port remains untested until I figure out this BDM / Code Warrior
-	  and paged build thing
-	* Added a new 'kill' command to NSH that will support sending signals to
-	  running NuttX tasks.
-
-5.19 2011-03-12 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/stm32/stm32_idle.c: During idle times, the STM32 now uses the
-	  WFI instruction to sleep in a reduced power mode until the next interrupt
-	  occurs (Contributed by Uros Platise).
-	* NSH: 'mem' command renamed to 'free'.  Output is now more similar to the
-	  Linux 'free' command.
-	* NSH: Correct a redirection bug in NSH.  The following would not work; it
-	  resulted in a hang after the 'cat /dev/fifo':
-
-	    nsh> mkfile /dev/fifo
-	    nsh> cd /tmp             # /tmp is a mounted RAM disk
-	    nsh> cat /dev/fifo > test.txt &
-	    nsh> echo "This is a test" > /dev/fifo
-
-	  The error was caused because (1) there was a path that resulted in stdout
-	  being closed (the "hang") and also (2) the 'cat' command was always outputting
-	  to stdout, not to the redirected file descriptor.  Now:
-
-	    nsh> cat test.txt
-	    This is a test
-
-	* drivers/pipes/pipe_common.c:  Driver open method was not returning an EINTR
-	  error when it received a signal.  Instead, it just re-started the wait.  This
-	  makes it impossible to kill a background pipe operation from NSH.
-	* include/stdint.h: Correct some errors in conditional compilation (submitted
-	  by Johannes Hampel).
-	* arch/arm/lpc17xx/lpc17_idle.c: Uses the same logic as the STM32: uses the
-	  WFI instruction to sleep in a reduced power mode until the next interrupt
-	  occurs.
-	* configs/olimex-lpc1766stk: Added an LED encoded to indicate if the LPC1766
-	  is in sleeping.
-	* examples/mm: This is a simplified version of the "built-in" memory manager
-	  test of mm/mm_test.c.  It is simplified because it does not have access to
-	  the internals of the memory manager as does mm/mm_test.c, but it has the
-	  advantage that it runs in the actual NuttX tasking environment (the
-	  mm/mm_test.c only runs in a PC simulation environment).
-	* drivers/mmcsd_sdio.c/h: Several corrections submitted by Uros Platise.
-	* arch/x86: Provide support for x86 architectures.  Support for the i486
-	  architecture under QEMU is provided under arch/x86/include/i486,
-	  arch/x86/include/qemu, arch/x86/src/i486, and arch/x86/src/qemu.
-	* configs/qemu-i486: "Board" support configurations for verifying the QEME
-	  i486 port.
-	* arch/arm/src/stm32/stm32_spi.c: Correct base address of SPI3 (reported by
-	  Uros Platise).
-	* drivers/mmcsd/mmcsd_sdio.c: Correct a loop termination condition (also
-	  reported by Uros Platise).
-	* drivers/mtd/ramtron.c: Driver for SPI-based RAMTRON NVRAM devices FM25V10
-	  (and others).  Contributed by Uros Platise.
-	* examples/nsh and tools/mkromfsimg.sh: Add support for platform-specific
-	  ROMFS-based NSH start-up scripts.
-	* drivers/serial/uart_16550.c and include/nuttx/serial/uart_16550.h: Support
-	  for a generic 16550 UART.
-	* configure/qemu-i486/nsh: QEMU NSH example.
-	* ../apps: The apps directory add-on was created by Uros Platise.  It
-	  supports a set of end-user applications than can be executed on top of
-	  NSH.  Think of it this way:  In a buckled-up embedded application, your
-	  end-user programs will probably have their own dedicated start-up logic.
-	  But, during development, you might want to have you applications
-	  available and executable from the NSH command line.  This apps/ addon
-	  (and NSH hooks) was contributed by Uros to accomplish just that.
-	* sched/sched_waitpid() and include/sys/wait.h: Provides a simple and
-	  very incomplete implementation of waitpid().  waitpid() is only available
-	  if CONFIG_SCHED_WAITPID is defined in your configuration file.
-	* sched/atexit.c and sched/exit.c: The atexit function is not frequently
-	  used.  In order to save a few bytes, it is now conditioned on
-	  CONFIG_SCHED_ATEXIT.  It your application is currently using atexit(),
-	  you will need to add CONFIG_SCHED_ATEXIT to your configuration file.
-	* drivers/net/slip.c: Add a SLIP driver (untested on initial check-in).
-	* configs/olimex-lpc1766stk/slip-httpd: An example that uses SLIP to
-	  provide a serial-port based THTTPD web server.
-
-6.0 2011-03-21 Gregory Nutt <gnutt@nuttx.org>
-
-	* lib/lib_fopen(): fopen() was not returning the correct errno value
-	  when the underlying open() failed.
-	* include/net/uip/uip-arch.h: The uIP interface has been extended
-	  slightly so that drivers can be concurrenly filling and sending
-	  packet buffers.  This capability was needed by the SLIP driver.
-	* drivers/net/slip.c: Several corrections and some re-design of
-	  of the driver.
-	* apps/ChangeLog.txt: the apps/ directory now has its own ChangeLog.
-	* configs/vsn:
-	  - IDLE LED blinking fix
-	  - Added board power off function
-	* arch/arm/src/stm32/stm32_gpio.c and stm32_internal.h: Fixed
-	  PullUp/Down Input Configuration.
-	* arch/arm/src/lpc17xx/lpc17_serial.h: Now supports Auto-RTS and
-	  Auto-CTS modes.  This is needed to support SLIP.
-	* drivers/net/slip.c: SLIP is now basically functional on the
-	  LPC17xx with some caveats as described in the TODO list under
-	  LPC17xx.
-	* arch/x86/include/i486/irq.h: Fix irqrestore() macro... it was not
-	  correctly re-enabling interrupts.
-	* arch/x86/src: Fix numerous problems with i486/QEMU context
-	  switching.  Basically, the logic was missing the cases to handle
-	  the differing stack frames when a priority change occurs and when
-	  no priority change occurs.
-	* configs/qemu-i486/ostest and nsh: The QEMU i486 port is complete.
-	  it now passes the OS test and supports the NuttShell (NSH).
-	* misc/drivers: Created a new directory to hold non-BSD licensed
-	  drivers that may be added into NuttX via an installation script.
-	* drivers/usbhost/usbhost_rtl8187.c: A decision was made to
-	  incorporate code taken from the Linux kernel.  That changes the
-	  licensing on this module to GPL.  To avoid licensing contamination,
-	  this driver was moved to misc/drivers/rtl8187x *prior* to adding
-	  any of the GPL logic.  There is an INSTALL.sh script at the location
-	  where the GPL driver(s) can be re-installed into the NuttX source
-	  tree.  By re-installing the driver, you agree to the GPL licsensing
-	  and all of its implications.
-	* Makefile, apps/Makefile, tools/configure.sh:  Add logic to copy
-	  configs/<board>/<config>/appdir to apps/.config and to simply the
-	  application configuration logic.
-	* examples/nsh and apps/nshlib: Move the core NuttShell (NSH) logic
-	  out of the examples directory and into the apps/ directory where
-	  it belongs.
-	* apps/Makefile and configs/*/appconfig: Use '=' as the delimiter
-	  instead of '/' so that sub-directories in apps/ can be used.
-	* apps/vsn: Move all VSN apps to apps/vsn.
-	* nuttx/examples moved to apps/examples
-
-6.1 2011-04-11 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/include/lpc17xx/irq.h and arch/arm/src/lpc17xx/lpc17_gpio*.c:
-	  Fix several bugs in the GPIO interrupt logic.  Submitted by
-	  Decio Renno.
-	* Initialization for the CONFIG_APPS_DIR is now supported during the
-	  earlier, 'context' build phase.
-	* arch/arm/src/lpc17_gpioint.c: Finish coding of the LPC17xx GPIO
-	  interrupt logic.
-	* net/netdev_unregister.c: Add capability to un-register a network
-	  device.
-	* drivers/mmcsd/mmcsd_sdio.c: extra effort to correctly handle cases
-	  without the SDcard (but one issue still exists in STM32)
-	* arch/arm/src/stm32/stm32_tim.*: Added basic timer support TIM1..TIM8
-	  with output PWMs and interrupt logic
-	* config/vsn/src:  Added basic support for Sensor Interface (GPIO and
-	  PWM Power Output, and the sif utility program)
-	* fs/: Reorgnize header so that file systems can be built outside
-	  of the nuttx source tree
-	* apps/namedapp/binfs.c: Create a tiny filesystem that can be used
-	  to show the internal named apps under /bin.
-	* fs/fs_opendir.c: Correct an error that occurs when a file system is
-	  mounted in the root directory.  This was discovered while mounting
-	  the named app's /bin directory.
-	* lib/: Move all source files into a subdirectory of lib/ named after
-	  the header file in which the library function is prototyped.
-	* sched/ and lib/pthread/:  Move pthread attribute-related interfaces
-	  from sched/ to lib/pthread where they more appropriately belong.
-	* sched/ and lib/semaphore/:  Move some semaphore-related interfaces
-	  from sched/ to lib/pthread where they more appropriately belong.
-	* syscall/: The beginnings of an optional syscall Kernel interface.
-	* tools/mksyscall.c:  Add a tool that will auto-generate syscall proxies
-	  and stubs from a comma-separated-value (CSV) data file.
-	* arch/arm/src/cortexm3/mpu.h: Add a header file describing the Cortex-M3
-	  MPU registers.
-	* Numerous modifications to the build system.  Various people have reported
-	  build problems since the re-organization and release of NuttX-6.0.  I am
-	  unable to replicate the build problems in my environment, but the changes
-	  have be incorporated in hope of correcting the build issues in other
-	  environments.
-	* drivers/i2c/st_lis331dl.c:  I2C-based driver for the LIS331DL MEMS
-	  motion sensor.  Contributed by Uros Platise.
-	* Makefile: The NuttX build system  will now supported building NuttX as two
-	  separately linked images: (1) a kernel-mode RTOS image, and (2) a user-
-	  mode application image that communicates to the RTOS kernel via system
-	  calls.  A lot more still must be done.
-	* user_initialize(): Eliminated the user_initialize() initialization hook.
-	  It is difficult to maintain and redundant:  Board level initialization
-	  an up_initialize() provide the same kind of capability.
-	* arch/*/include/*/type.h: On some compilers, char defaults as unsigned.
-	  Explicitly add signed to integer types if signed is what is required.
-	* arch/*: For all architectures -- Global register state save structure
-	  (usually called g_current_regs) should be marked volatile; Added general
-	  capability to support nested interrupts (not fully realized for all
-	  architectures).
-	* sched/task_create.c: Add support for starting kernel-mode thread.
-	* drivers/usbdev/usbdev_serial.c: Fix reported by Sheref Younan.  USB
-	  was being reset after serial driver was closed.  As a result, you could
-	  no reopen the serial driver.
-	* configs/lpcxpresso-lpc1768: Add a board configuration for the Embedded
-	  Artists LPCXpresso LPC1768 board.
-
-6.2 2011-05-06 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lpc17xx/lpc17_gpioint.c: Correct errors in logic that maps
-	  and IRQ number into a register bit number.
-	* Makefile: Fix an error introduced in the top-level Makefile in NuttX-6.1.
-	  This error only shows up if you have a /tftpboot directory.  Then the
-	  make will fail with an obscure error about not being able to stat pass2.
-	* configs/lpcxpresso-lpc1768/nsh: Add an NSH configuration for the
-	  LPCXpresso board.
-	* configs/*/ld.script: Removed 'sh_link not set for section .ARM.edix' for
-	  a few of the builds.  In you have this warning, it can be removed with the
-	  following change to the ld.script file:
-
-		+ __exidx_start = ABSOLUTE(.);
-		.ARM.exidx : {
-		-     __exidx_start = ABSOLUTE(.);
-		      *(.ARM.exidx*)
-		-     __exidx_end = ABSOLUTE(.);
-		} >sram
-		+  __exidx_end = ABSOLUTE(.);
-
-	* arch/arm/src/lpc17xx: Correct some typos/bugs in configuration of LPC17xx
-	  UART2 and UART3.
-	* nuttx/clock.h: Replace all references to the global variable g_system_timer
-	  with clock_systemtimer() (currently just a macro that that returns g_system_timer).
-	* lib/string/strrch.c: Would fail if the searched-for character were the first
-	  character in the string.
-	* tools/version.sh and mkversion.c: Tools to manage a NuttX version number
-	  file
-	* sched/clock_getutc() and lib/time/lib_time.c: Add support for 1 second UTC
-	  interface.
-	* net/net_dup2.c and include/nuttx/net.h: The conditional compilation for
-	  '#if CONFIG_NFILE_DESCRIPTOR > 0' was wrong in both of these files.  It should
-	  be '#if CONFIG_NFILE_DESCRIPTORS > 0'.  This causes a dup2() failure in THTTPD
-	  and a failure to get a CGI page.  The consequence can be a very serious bug!
-	* configs/lpcxpresso-lpc1768/usbstorage, thttpd, and dhcpd: Add an USB storage,
-	  THTTPD web server, and DHCP server configurations for the NXP LPCXpresso board.
-	* drivers/lcd/ug-9664hswag01.c and ssd1305.h: Add support for Univision UG-9664HSWAG01
-	  OLED with Solomon Systech SD1305 LCD controller.
-	* configs/lpcxpresso-lpc1668/nx: Add a NX graphics configuration for the LPCXPRESO
-	  board.
-	* graphics/nxglib/nxglib_nonintersecting.c: Fix some single bit errors in
-	  calculation of non-intersecting regions.  This was causing an anomaly
-	  in examples/nx in column 0.
-	* drivers/mtd/rammtd.c: Added a RAM based MTD driver.  This RAM driver simulates
-	  FLASH and is useful for testing purposes.
-	* arch/arm/src/arm/up_head.S: Fix backward conditional compilation.  This cause
-	  the configs/mx1ads configuration to fail to build but does not appear to affect
-	  any other ARM9 build.
-	* fs/nxffs: Adding a tiny, wear-leveling FLASH file system for NuttX.  This
-	  file system is intended to be small and will have some limitations.  The
-	  implementation is incomplete on initial checkin.
-	* apps/examples/nxffs and configs/sim/nxffs:  Add a test a a configuration that
-	  will be used to verify NXFFS.
-	* fs/fat/fs_fat32.c and fs_fat32util.c: Incorpated two bugs with fixed provided
-	  by Sheref Younan.  Thanks!
-	* fs/nxffs: After a couple of weeks of testing and bug fixes, NXFSS appears
-	  stable and functional.
-
-6.3 2011-05-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* Remove clock_getutc().  It is replaces with clock_gettime(CLOCK_ACTIVETIME).
-	  Add other RTC related changes provided by Uros Platise.
-	* arch/arm/src/stm32/stm32_flash.c: Add support for access to on-chip STM32
-	  FLASH; beginning of integration with NXFFS (Uros Platise).
-	* arch/mips: Added directory structure for PIC32 support
-	* configs/pcblogic-pic32mx:  Add directory structure for PCB Logic PIC32MX board
-	* apps/include:  Move include/apps to apps/include.  A symbolic link is created at
-	  build time
-	* Makefile: Removed support for Pascal pcode interpreter.  Support for that
-	  interpreter has been moved to apps/interpreter/Makefile.
-	* tools/mkdep.sh: Should not report an error if there are no files on the command
-	  line.  This happens normally in certain configurations.
-	* drivers/usbhost: Sheref Younan reported an error in the error handling when
-	  connection to a USB device fails.  In certain fail cases, the logic would try
-	  to free the device class instance twice, the first was okay, but the second
-	  caused a crash.
-	* graphics/nxbe/nxbe_colormap.c: Fix error noted by Bassem Fahmy.  The function
-	  nxbe_colormap was change to nxbe_configure... apparently "search-and-replace"
-	  error. This error was not noticed before because most NX platforms do not use
-	  colormapping.
-	* arch/rgmp and configs/rgmp.  Add architecture support and build
-	  configuration for RGMP.  RGMP is a project for running GPOS and
-	  RTOS simultaneously on multi-processor platforms. See
-	  http://rgmp.sourceforge.net/wiki/index.php/Main_Page for further
-	  information about RGMP.
-	* lib/stdio/lib_fclose.c: Must flush all buffered data when the file is closed.
-	  Instead, it was discarding the buffered data.
-	* lib/stdio: All output stream logic was modified to support CONFIG_STDIO_LINEBUFFER.
-	  If standard C buffered I/O is enabled (CONFIG_STDIO_BUFFER_SIZE > 0), then this
-	  option may be added to force automatic, line-oriented flushing the output buffer
-	  for putc(), fputc(), putchar(), puts(), fputs(), printf(), fprintf(), and vfprintf().
-	  When a newline is encountered in the output string, the output buffer will be
-	  flushed.  This (slightly) increases the NuttX footprint but supports the kind of
-	  behavior that people expect for printf.
-
-6.4 2011-06-06 Gregory Nutt <gnutt@nuttx.org>
-
-	* lib/drivers/cc1101: Add initial, functional CC1101 wireless driver
-	  (contributed by Uros Platise)
-	* arch/mips and configs/pcblogic-pic32mx: The MicroChip PIC32MX port is now
-	  code complete and ready to begin testing.  Unfortunately, it looks like
-	  testing will be delayed due to tool issues (My PICkit 2 will not work the
-	  the MPLAB debugger on PIC32; I will need to get a PICkit 3).
-	* drivers/net/e1000.c/h: A PCI-based E1000 Ethernet driver submitted
-	  by Yu Qiang.
-	* lib/net/lib_inetaddr.c: An implementation of the inet_addr() function
-	  submitted by Yu Qiang.
-	* arch/arm/src/lpc31xx and arch/arm/include/lpc31xx:  Renamed from lpc313x
-	  to make name space for other famiy members.
-	* arch/arm/*/lpc31xx: Added support for the LPC315x family (untested).
-	* sched/task_exithook.c: Functionality performed when a task exits or is
-	  deleted has been moved to a common file task_exithook.c.  Now exit()
-	  functionality (like flushing I/O and calling registered atexit()
-	  functions, etc.) will be performed when a task is deleted as well.
-	* mm/:  Added support for CONFIG_MM_SMALL. Each memory allocation has a
-	  small allocation overhead.  The size of that overhead is normally
-	  determined by the "width" of the address support by the MCU.  MCUs
-	  that support 16-bit addressability have smaller overhead than devices
-	  that support 32-bit addressability.  However, there are many MCUs
-	  that support 32-bit addressability *but* have internal SRAM of size
-	  less than or equal to 64K.  In this case, CONFIG_MM_SMALL can be
-	  defined so that those MCUs will also benefit from the smaller, 16-
-	  bit-based allocation overhead.
-	* lib/string/lib_strndup.c: Add standard strndup() library function.
-	* net/getsockname.c: Added standard getsockname() to return the local
-	  address associated with a socket.
-	* lib/stdio/lib_asprintf.c: Add asprintf()
-	* configs/olimex-lpc1766stk/ftpc:  Add a configuration to support
-	  testing of the FTP client shell.
-	* fd/fs_fdopen.c and net/net_checksd.c: Add support so that fdopen may
-	  be used with socket descriptors.
-	* net/recvfrom.c: Fix an error found in receiving small files via FTP:
-	  The small file is received a buffered in the readahead buffer, then the
-	  socket is disconnected.  When the app calls recvfrom, the socket is
-	  already disconnected and the buffered data is stranded.  Now, recvfrom
-	  will continue to return success after the socket is disconnected until
-	  the readahead buffer is drained.
-	* olimex-lp1766stk/ftpc/defconfig: Many configurations have the MTU
-	  (CONFIG_NET_BUFSIZE) set to very small numbers, less then the minimum
-	  MTU size that must be supported -- 576. This can cause problems in
-	  some networks:  CONFIG_NET_BUFSIZE should be set to at least 576 in
-	  all defconfig files.  This has only been fixed in this defconfig file.
-
-6.5 2011-06-21 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/avr/src/avr and arch/avr/include/avr: Adds general support for
-	  the Atmel 8-bit AVR family.
-	* arch/avr/src/atmega and arch/avr/include/atmega: Adds support for the
-	  Atmel AVR ATMega family.
-	* arch/avr/src/at90usb and arch/avr/include/at90usb: Adds support for the
-	  Atmel AVR AT90USB family.
-	* configs/micropendous3: Adds a board configuration for the Opendous
-	  Micropendous 3 board.  This board may be populated with several different
-	  members of the Atmel AVR AT90USB family.
-	* configs/amber: This is a placehold for the Atmel ATMega128 Amber Web
-	  Server from SoC Robotics.  Not much present in this directory on initial
-	  check-in.
-	* configs/teensy: Adds a board configuration for the PJRC Teensy++ 2.0 board
-	  that features an Atmel AT90USB1286 MCU.
-	* fs/fat: Offsets, sector numbers, etc. need to be off_t, not size_t.  size_t
-	  is intended to be the maximum size of a memory object, not a file offset. This
-	  does not make any difference except on systems (like the AVR) where size_t
-	  is only 16-bits.
-
-6.6 2011-07-11 Gregory Nutt <gnutt@nuttx.org>
-
-	* drivers/mtd/ramtron.c, net/net_checksd.c, fs/fs_fdopen.c, and include/nuttx/mii.h:
-	  Several structural changes made to get a clean compile under the eZ80 ZDS-II
-	  toolchain (no design changes).
-	* drivers/usbhost/usbhost_storage.c: Incorpated bugfixes reported by Sheref H.
-	  Younan:  (1) Read capacity logic read largest block, not the number of blocks
-	  and was, therefore, off by one, and (2) Some devices stall of get Max LUN request
-	  if they support only a single LUN.  Logic now assumes a single LUN if the get
-	  Max LUN request fails.
-	* include/nuttx/arch.h, lib/stdio/lib_libvsprintf.c, lib/stdio/lib_fputs.c: Add
-	  a new configuration option to support extracting strings from FLASH or EEPROM
-	  or other memories where the string data cannot be accessed by simply de-referencing
-	  a string pointer.
-	* arch/sim/src/up_romgetc.c: Used to test the basic logic to access strings
-	  without directly de-referencing a string pointer.
-	* arch/avr/src/avr/up_romget.c: Used to access strings that lie in the first
-	  64K of FLASH (But I still haven't figured out how to get strings to reside in
-	  FLASH without using the PROGMEM attribute).
-	* configs/teensy/src/up_spi.c: Correct reading of SD CD and WP pins (was reading
-	  the wrong register.  AVR SPI now appears to be functional.
-	* arch/avr/src/at90usb/at90usb_usbdev.c: Correct USB initialization.  Interrupts
-	  were being enabled BEFORE the interrupt handler was attached.
-	* configs/sure-pic32mx:  Add a configuration for the Sure Electronics, "Advanced USB
-	  Storage Demo Board," Model DB-DP11215 (http://www.sureelectronics.net/goods.php?id=1168).
-	  This board features the MicroChip PIC32MX440F512H MCU. (Untested on initial
-	  check-in).
-	* configs/stm3210e-eval/nsh2:  Add another NSH configuration for the STM32 with
-	  some different properties.
-	* CONFIG_NSH_CONDEV:  Add a configuration option to allow using a different character
-	  device (such a a different UART) for the NSH interface.  This allows, for example,
-	  debug output to come from the console device while using another device for NSH.
-	  There are some issues on initial check-in:  NuttX doesn't have termios and the
-	  console device has special properties that make using NSH awkward.  Examples:
-	  No CR-LF expansion, no character echoing, no command line editing.
-	* arch/arm/src/stm32/stm32_lowputc.c and stm32_serial.c.  Correct several bugs
-	  involving serial port configuration.  These bugs are only critical if you
-	  are trying to using multiple UARTs on STM32.
-	* configs/stm3210e-eval/src/up_lcd.c:  Add a driver for the STM3210E-EVAL's LCD.
-	* configs/stm3210e-eval/nx:  Add NX configuration for the STM3210E-EVAL.
-	* configs/nuttx/arch.h (and arch/arm/src/stm32, configs/*/src/up_buttons.c):
-	  Standardize interfaces exported for button support and button interrupts.
-	* configs/stm3210e-eval/src/up_buttons.c:  Add interrupting button support.
-	  Also fixes a few errors in STM3210E-EVAL button decoding.
-	* configs/stm3210e-eval/buttons: Add a configuration to exercise STM3210E-EVAL
-	  buttons.
-	* arch/arm/src/stm32/stm32_gpio.c:  GPIO interrupt handling for pin
-	  numbers were being aliased:  5-9 together and 10-15 together.  Extended
-	  the logic to perform decoding of GPIO interrupts and unique dispatching
-	  for all 16 pins.
-	* configs/stm3210e-eval/nxtext: Add a configuration for the apps/examples/nxtext
-	  example.  This example focuses on placing text on the background while
-	  pop-up windows occur.  Text should continue to update normally with or without
-	  the popup windows present.
-	* arch/arm/src/common/up_checkstack.c:  ARM stack overflow checking submitted
-	  by Hal Glenn.
-	* arch/arm/src/lpc17xx: Changes to compile successfully with no serial console
-	  (also submitted by Hal Glenn).
-	* graphics/nxfonts/nxfonts_convert.c:  Fixed a critical bug that caused
-	  when renderer some fonts with bits-per-pixel > 8
-	* graphics/nxbe/nxbe_move.c: Fixed an error in the graphics move logic (This
-	  was a previously untested interface).  Basically, there is some confusion
-	  between use of (x,y) as a relative offset or as an absolute position.
-	* graphics/nxbe/nxbe_close.c:  Fixed an important graphics system bug:
-	  When a window is closed, the display was not being updated.  The old
-	  window graphic was left on the display for a time.
-
-6.7 2011-08-02 Gregory Nutt <gnutt@nuttx.org>
-
-	* Makefile:  Added a export target that will bundle up all of the NuttX
-	  libraries, header files, and the startup object into an export-able
-	  tarball.
-	* arch/arm/src/lpc17xx/lpc17_can.h:  Correct some typos in the CAN
-	  register definitions.
-	* drivers/serial/serialirq.c:  Correct an error that can occur if the
-	  serial RX buffer becomes full.  Data is now discarded in that case;
-	  before, leaving data in the hardware would cause infinite interrupts
-	  one most MCUs since you must read the data in order to clear the
-	  interrupt.
-	* arch/arm/src/lpc17xx/lpc17_can.c:  Added a CAN driver contributed by
-	  Li Zhuoyi (Lzyy).
-	* include/stddefs.h and sys/types:  Added type wchar_t.
-	* fs/fat/fat_fat32dirent.c:  Move all FAT directory operations to this
-	  new file; Implement VFAT long file name support.
-	* fs/fat/fat_fat32dirent.c:  The configuration CONFIG_FAT_LCNAMES has
-	  been around for some time but never tested until now.  This setting
-	  will mimic the NT 8.3 file name behavior:  File names or extensions
-	  may be all upper or all lower case (but not mixed).  If
-	  CONFIG_FAT_LCNAMES is not selected, all filenames are strictly upper
-	  case.
-	* configs/stm3210e-eval/nsh2:  Console is back on UART1; Added
-	  examples/nx as an NSH "built-in" command as a demonstration.
-	* fs/fat/fs_fat32dirent.c:  Fix an important bug in the directory
-	  allocation (fat_allocatedirentry()).  I looks like it could be
-	  initializing the wrong sectors! NOTE:  This function was in
-	  fs_fat32utils.c in earlier releases.
-	* arch/arm/src/stm32_sdio.c: Correct an important DMA-related bug;
-	  SDIO transfer completion events and DMA completion eventes were
-	  not being coordinated correctly.
-	* configs/stm3210e-eval/nsh2: Enable FAT long file name support
-	* sched/sem_timedwait.c: Add the standard sem_timedwait() interface.
-	* graphics/nxfonts/nxfonts_getfont.c, nxfonts_bitmap.c,
-	  Makefile.source, and include/nuttx/nxfonts.h: Support for multiple
-	  fonts included.  A new interface, nxf_getfonthandle() takes a font
-	  ID and returns a handle that is now used at all other font interfaces
-	  to specify which of the multiple fonts to use.
-	* arch/arm/src/lpc17xx/lpc17_syscon.h: Fix typo (reported by Li Zhuoyi).
-	* configs/stm3210e-eval/nsh2: Extended to support two new commands:
-	  'msconn' will connect the USB mass storage device; 'msdis' will
-	  disconnect the USB storage device.
-	* tools/bdf-converter.c.  This C file is used to build the bdf-converter
-	  program.  The bdf-converter program be used to convert fonts in Bitmap
-	  Distribution Format (BDF) into fonts that can be used in the NX graphics
-	  system.
-	* include/nuttx/nx:  Move all NX header files from include/nuttx to
-	  include/nuttx/nx.
-	* drivers/usbdev/usbdev_usbstorage.c and arch/arm/src/stm32/stm32_usbdev.c:
-	  Correct a memory leak when the USB mass storage driver is connected and
-	  then disconnected from the target.  The write requests were not being
-	  freed.  NOTE that the unregister logic in the STM32 needed to call
-	  stm32_reset() in order to return the write requests to the USB mass
-	  storage driver; it is possible that a similar but could exist for other
-	  architectures.
-	* graphics/nxfonts/nxfonts_*.h:  Add several more new fonts
-	* arch/z80/src/eZ80/ez80_serial.c: Fix some errors in serial driver
-	  setup for UART1 (submitted by Paul Osmialowski).
-	* drivers/input/tsc2007.c and include/nuttx/input/*:  Add a generic NuttX
-	  touchscreen interface.  Add a driver for the TI TSC2007 touchscreen
-	  controller.
-	* graphics/nxglib/lcd and fb:  Add low level routines to set single pixels.
-	* lib/math/lib_b16atan2.c:  Add a fixed precision atan2() function
-	* graphics/nxglib/nxglib_splitline.c: Add logic to divide a wide line into
-	  trapezoidal components.
-	* graphics/nxmu/nx_drawline.c, graphics/nxsu/nx_drawline.c,
-	  graphics/nxtk/nxtk_drawlinewindow.c, graphics/nxtk/nxtk_drawlinetoolbar.c:
-	  Add new line drawing interfaces (untested).
-
-6.8 2011-08-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lpc17xx/chip.h:  Fix some chip memory configuration errors
-	  for the LPC1764, LPC1756, and LPC1754 (submitted by Li Zhuoy (Lzyy))
-	* arch/arm/src/lpc17xx/lpc17_can.h:  Revised CAN driver submitted by
-	   Li Zhuoy (Lzyy).  The driver now supports both CAN1 and CAN2.
-	* arch/arm/sim/up_lcd.c: Add a simulated LCD driver.
-	* configs/stm3210e-eval/nxlines:  Added a configuration to build
-	  examples/nxlines.
-	* arch/graphics: Used apps/examples/nxlines to (finally) verify the NX
-	  trapezoid drawing functions and (wide) line drawing functions.
-	* arch/rgmp and configs/rgmp.  Yu Qiang has ported RGMP to the OMAP4430 (arm)
-	  pandaboard and release the new RGMP 0.3 version. The main changes are: (1)
-	  Separate configs/rgmp/x86 and configs/rgmp/arm configuration directory, and
-	  (2) Extract architecture dependent code in arch/rgmp/include and
-	  arch/rgmp/src into corresponding x86/ and arm/ directories.
-	* arch/arm/src/kinetis, arch/arm/include/kinetis, configs/kwikstick-k40:
-	  Add a directory structure to support the port to the Kinetis KwikStik-K40.
-	  There is no real substance in the initial check-in; only the directory
-	  structure and skeleton files (Code complete on 8/15/11).
-	* arch/arm/include/armv7-m, arch/arm/src/armv7-m, etc.: Rename all cortexm3
-	  directories and files to armv7-m; Change name of all CORTEXM3 constants
-	  to ARMV7M.  This is a major namespace change needed to cleanly support the
-	  ARM Cortex-M4 which is also in the ARMv7 M Series (specifically, ARMv7E-M).
-	* sched/sig_initialize.c, sig_received.c, and mq_waitirq.c.  Fixed several
-	  critical bugs related to signal handling initialization and for signals
-	  the wake up tasks that are waiting to send or receive message queues.  In
-	  the first two files, errors would prevent proper allocation of signal-related
-	  structures from interrupt handlers.  In the second, there was missing
-	  "clean-up" logic after a signal occurred, leaving the message queue in
-	  a bad state and resulting in PANICs.  All are important.  (submitted by
-	  hkwilton).
-	* arch/arm/src/kinetis:  Added header files defining all Kinetis registers
-	  and bit fields within all Kinetis registers.
-	* configs/twr-k60n512:  Add support for the Kinetis K60 Tower board
-	  (TWR-K60N512).
-	* drivers/can.c:  Fixed a semaphore overflow problem in the CAN driver
-	  (reported by Li Zhouy (Lzyy)).
-	* 8/18/2011: The basic port to the FreeScale Kinetis TWR-K60N512 board is
-	  now functional.
-	* configs/twr-k60n512: Add Kinetis TWR-K60N512 NSH configuration.
-	* drivers/analog and include/nuttx/analog: Add ADC driver infrastructure
-	  and TI ADS1255 driver developed and submitted by Li Zhouy (Lzyy)).
-	* arch/arm/stm32/stm32_sdio.h and drivers/mmcsd/mmcsd.c:  Add logic to
-	  multiplex usage of the GPIO pins (contributed by Uros Platise).
-	* configs/twr-k60n512/nsh:  Added and verified a NuttShell (NSH)
-	  configuration for the Freescale, Kinetis TWR-K60N512 board.
-
-6.9 2011-09-11 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/kinetis/kinetis_sdhc.c: SDHC driver for Kinetis parts.
-	  Initially check-in is just a crude port of the STM32 SDIO driver.
-	  Much more work is needed.
-	* graphics/, include/nuttx/nx:  Add new NX interfaces for drawing
-	  circles -- both circular outlines and filled circles.
-	* graphic/nxglib/nxglib_spitline.c:  Add a "fudge factor" that eliminates
-	  some problems for rendering nearly horizontal, wide lines.  Hmm...
-	  but I suspect this fudge factor also leads to new problems rendering
-	  very thin, nearly horizontal lines.  More tuning is needed.
-	* drivers/analog, include/nuttx/analog, arch/arch/src/lpcxx:  (1) Add
-	  updates to the ADS1255 driver, (2) fix errors from my last merge (sorry),
-	  (3) Add DAC infrastructure, (4) add AD5410 DAC driver, and (5) add
-	  LPC17xx ADC and DAC drivers.  All contributed by Li Zhuoyi (Lzyy).
-	* tools/mkexport.sh:  Extended the script that implements the top-level
-	  'make export' logic.  The script now also finds and bundles up all of
-	  the architecture-specific header files as well.
-	* drivers/arch/arm/src/stm32/stm32_i2c.c:  Add a reset to the I2C
-	  initialization logic to prevent spurious interrupts when the I2C
-	  interrupts are enabled (submitted by Uros Platise).
-	* Scripts/makefiles/documents.  Several adjustments, corrections and
-	  typo fixes so that NuttX will build correctly on FreeBSD using the
-	  ASH shell (submitted by Kurt Lidl).
-	* drivers/mtd/flash_eraseall.c:  Add a callable function that accepts
-	  the path to a block driver and then erases the underlying FLASH memory
-	  (assuming that the block driver is an MTD driver wrapped in the FTL
-	  layer).  Hmmm... this is probably not the best long term solution;
-	  flash_eraseall() should be a user-callable function that operates
-	  one driver interfaces; not an internal, OS function that operates
-	  on directly on block drivers.
-	* drivers/bch:  Fixed some important bugs in the BCH driver (noted by
-	  Li Zhuoyi (Lzyy)).  This would have effected any large reads or writes
-	  (larger than the hardware sector size).
-	* arch/*/src/Makefile:  Use of -print-libgcc-file-name to get path to
-	  libgcc.a may select the wrong libgcc.a if a multilib toolchain (like
-	  CodeSourcery) is used. This can be a serious problem and can cause
-	  crashes on Cortex-M3 if the ARM libgcc is used, for example.  The fix
-	  is to include ARCHCPUFLAGS on the gcc command line when asking it to
-	  -print-libgcc-file-name.
-	* lib/time/lib_gmtimer.c:  Correct several calculations that could lead
-	  to errors in dates.
-	* drivers/pm: Add the beginnings of a NuttX power management sub-system.
-	* arch/arm/src/stm32/stm32_irq.c:  Fix a error introduced in 6.8.
-	  Timeout calculation uses clock_settime() instead of clock_gettime().
-	  Pretty gross error, but actually it works with the side effect of setting
-	  a bad time.
-	* drivers/mtd/at24xx.c: Driver for I2C-based at24cxx EEPROM submitted by
-	  Li Zhuoyi (Lzyy).
-	* arch/arm/src/lpc17xx/lpc17_i2c.c: I2C driver for the NXP LPC17xx family
-	  submitted by Li Zhuoyi (Lzyy)
-	* arch/arm/src/stm32_i2c.c:  Correct two issues with the STM32 I2C driver:
-	  (1) Clocking needs to be based on PCLK1, not HCLK and fast speed settings
-	  need some additional bits; and (2) Correct a hang that will occur on
-	  I2C1 if FSMC is also enabled.
-	* drivers/sensors/lm75.c and include/nuttx/sensors/lm75.h:  Add an LM-75
-	  temperature sensor driver.
-	* configs/stm3210e-eval/src/up_lm75.c:  Add support for the LM-75 on the
-	  STMicro STM3210E-EVAL board.
-	* sched/clock_gettime.c:  Correct an error in the tv_nsec calculation
-	  that happens only config CONFIG_RTC is enabled.
-	* arch/arm/src/stm32/stm32_i2c.c:  Correct some bugs related to waiting
-	  for the I2C STOP condition to be cleared.
-
-6.10 2011-10-06 Gregory Nutt <gnutt@nuttx.org>
-
-	* lib/stdio/lib_fopen.c:  Fix an error in fopen(); the file pointer was not
-	  being positioned at the end of the file when the "a" and "a+" modes are
-	  used.  There are other issues with the "a+" modes (see the top-level TODO
-	  list).
-	* drivers/usbdev/cdc_serial.c and include/nuttx/usb/cdc.h and cdc_serial.h:
-	  Add support for the CDC ACM serial device class.
-	* fs/fat/fs_fat32.c: Fix a critical bug in the write logic:  It a tiny write
-	  cross a sector boundary, then two sector writes will occur.  The first part
-	  in the first sector may be written to the wrong sector number.
-	* fs/fat/fs_fat32util.c:  Fix a stray write into the FAT (always sector 964 on
-	  FAT32).  This bug will cause some lost chains.  I'm sure this bug could
-	  corrupt files but at present, the only thing I have seen is that before
-	  fixing this bug, the Windows chkdsk utility would report these lost chains.
-	* arch/arm/src/stm32/stm32_i2c.c: Driver can now operate in a faster polled
-	  mode (at the expense of using more cpu cycles).
-	* arch/arm/src/stm32/stm32_i2c.c: Add trace debug capability.  Enabled with
-	  CONFIG_I2C_TRACE.
-	* arch/arm/src/stm32/stm32_i2c.c: Fix another bug where I2C conflicts with FSMC
-	  being enabled.  That time at the tail end of the transaction where there is
-	  an unfinished stop condition.
-	* sched/mq_timedreceive.c and sched/mq_timedsend.c:  The count of threads
-	  waiting on the message queues was not being decremented after a timeout.
-	  This would cause the accounting logic to become out of sync and the, perhaps,
-	  an assertion to be triggered.  This is an important bug and fixes a
-	  potential crash when using mq_timedreceived() and mq_timedsend().
-	* sched/mq_sndinternal.c: Related to the above, the send logic was incrementing
-	  the wrong counter when it waited as part of the mq_timedsend.c logic.
-	* fs/fat:  Fix an error in the long file name logic:  If the long file name
-	  is an even multiple of 13 bytes in length, then it should not include a
-	  NULL terminating character.  Fix contributed by Kaushal Parikh.
-	* configs/sim/nx11: Created a separate configuration to build the NX
-	  example using the a simulated framebuffer driver on an X11 window.  This
-	  example has been verified on Ubuntu 9.09 (it does not work on Cygwin).
-	* arch/sim/src/up_touchscreen.c and up_x11eventloop.c: Adds support for a
-	  simulated NuttX touchscreen device using mouse/pointer feedback from an
-	  x11 window.
-	* configs/sim/touchscreen: Adds a configuration to verify the simulated
-	  touchscreen driver (Does not work on Cygwin).
-	* configs/sam3u/touchscreen: This is the configuration that I plan to use
-	  to verify the SAM3U-EK touchscreen driver.  However, as of this writing,
-	  there is no touchscreen driver for the board.
-	* CONFIG_RTC_HIRES: Add an option to support either a high-resolution RTC
-	  that completely replaces the system timer tick but may overflow and lose
-	  time when the MCU is off and also for a low-resolution (1 sec/tick) RTC
-	  that can run until 2106 with no overflow.  But in this latter case, higher
-	  resolution time must come from the system timer.
-	* CONFIG_SYSTEM_UTC: Removed support for the UTC system timer.  It just
-	  doesn't do enough to be worth the CPU cycles or the complexity.
-	* CONFIG_SYSTEM_TIME16: Added support for an optional 64-bit system timer.
-	* fs/fat/fs_fat32util.c: Add support for FAT date/time stamps; Enabled via
-	  CONFIG_FS_FATTIME.
-	* arch/arm/src/sam3u/sam3u_spi.c: Add an SPI driver for the AT91SAM3U.
-	* drivers/input/ads7843e.c and include/nuttx/input/ads7843e.h: Add a
-	  driver for the TI ADS7843E touchscreen controller.
-	* fs/nxffs/nxffs_open.c:  Fix an error when a file is open for writing; since
-	  the file will get deleted it is already exists, there must be a check if
-	  there are other open references to the file.
-	* arch/arm/src/stm32/stm32_sdio.c: Fixed an error where during SDHC
-	  initialization interrupts were not being re-enabled.  Caused more subtle
-	  errors than you would think.
-	* arch/arm/src/stm32/stm32_i2c.c:  Fixed an error where I2C timeouts appeared
-	  to be successful transfers.
-	* configs/sim/nsh2: Add another simulated NSH configuration.  This one
-	  supports X11 graphics, C++, and exercises graphic functions as built-in
-	  commands.
-
-6.11 2011-11-12 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/stm32/Make.defs:  Don't build stm32_rtc.c if CONFIG_RTC is not
-	  selected.  Doing so will cause errors if other configuration dependencies
-	  are not met.
-	* configs/stm3210e-eval/src/up_lcd.c:  Color corrections for SPFD5408B LCD
-	  do not work with R61580 LCD.
-	* configs/pic32-starterkit: Beginning of a configuration for the Microchip
-	  PIC32 Ethernet Starter Kit.  Hmmm.. I don't have a clue how to test this
-	  with no serial port?!
-	* lib/stdio/lib_fclose.c: fclose() always returns an error (EOF) when it
-	  closes a read-only file.  This is because it calls flush() which will
-	  fail on read-only files.  No harm is done other that a bad value is
-	  returned.
-	* arch/sim/src/Makefile: Correct build issue for sim/nsh2 target.  Old
-	  libboard.a was not being cleaned.
-	* arch/mips/src/pic32mx/pic32mx-gpio*.c:  Add GPIO support for the PIC32MX.
-	* configs/sure-pic32mx/src/up_leds.c and up_buttons.c:  Add button and LED
-	  support for the Sure Electronics PIC32MX board.
-	* configs/ea3152:  Add a configuration for the Embedded Artists LPC3152
-	  daughter board (with the same base-board used with configs/ea3131)
-	* graphics/nxmu/nx_getrectangle.c, graphics/nxsu/nx_getrectangle.c,
-	  graphics/mxtk/nx_getwindow.c, graphics/nxmu/nx_gettoobar.c:  New
-	  interfaces to read from graphics memory
-	* graphics/nxbe/nxbe_bitmap.c: Fix an error in the error handling that
-	  can cause valid bitmaps to fail to render.
-	* include/nuttx/video/rgbcolors.h: Fix errors in some 16- and 8-bit color
-	  conversion macros.
-	* tools/incdir.sh: Fix issues when g++ is used as the compiler.  It was
-	  not being recognized and handled properly.
-	* graphics/nxsu/nx_releasebkgd.c: Fix a bad cast that was causing
-	  problems with the background window was released.
-	* fs/nxffs/nxffs_pack.c:  Correct a critical bug in the NXFFS file system:
-	  When repacking the filesystem, there was a missing check to see if an
-	  inode structure would fit at the end of a block.  This is a rare case
-	  if the block size is large, but can be common for tiny block sizes
-	  and results in a crash and file system corruption.
-	* fs/nxffs/nxffs_initialize.c:  Fix an initialize error.  If the FLASH
-	  is full on power-up, NXFFS will fail to initialize correctly.
-	* fs/nxffs/nxffs_write.c and nxffs_pack.c:  Fix an error that can occur
-	  when attempt to write to FLASH volume that is completely full but
-	  has no value inodes on it.
-	* drivers/mtd/at24xx.c:  Now supports a configurable block size that
-	  supports using "clusters" of AT24 pages as blocks.  This allows bigger
-	  block sizes and more efficient use of EEPROM when the AT24 is used to
-	  support a file system (such as NXFFS). (Contributed by Hal Glenn).
-	* include/nuttx/video/rgbcolors.h: More fixes to RGB color conversion
-	  macros.
-	* arch/arm/src/common/up_createstack.c and up_usestack.c:  For ARM EABI
-	  the stack must be aligned to 8-byte boundaries.  This is necessary for
-	  passing aligned floating point values under EABI.  Fix contributed by
-	  David Sidrane.
-	* Numerous changes and fixes to the PIC32 interrupt handing logic. The
-	  PIC32 port is almost complete but still not ready for prime time.
-
-6.12 2011-12-06 Gregory Nutt <gnutt@nuttx.org>
-
-	* fs/fat/fs_fat32util.c and fs_fat32.h: Logic extended to look in up to
-	  four partitions for a valid FAT file system.
-	* drivers/input/tsc2007.c: Add support for 8-bit conversions; make sure
-	  that A/D converters are active before requesting conversions.
-	* drivers/mmcsd0/mmcsd_sdio.c: Increase capacity variable from size_t
-	  to uin64_t (if available) so that SD cards with capacities greater
-	  than 4Gb can be supported.
-	* fs/fat/fs_fat32dirent.c: The root directory structure is different
-	  from other directories.  When formatted by Windows, it is not initialized
-	  at all.  Some additional special handling is required to initialize the
-	  root directory entry to interoperate correctly with windows.
-	* fs/fat/fs_fat32util.c: In fat_systime2fattime(void) should be
-	  clock_gettime() and not clock_gettime().  Also, there is a place where
-	  FAT date is used instead of FAT time. (Thanks to David Sidrane).
-	* arch/arm/src/stm32 and arch/arm/include/stm32:  Add support for the
-	  STM32F40xxx family of MCUs.
-	* configs/stm3240g-eval:  Add framework for the STMicro STM3240G-EVAL
-	  board.
-	* include/sys/types.h:  wchar_t is a builtin type in C++ and its
-	  declaration can cause errors with certain C++ compilers.
-	* sched/sig_timedwait.c:  Fix signal handling when the returned info
-	  is NULL.  Before this change, it would dereference a NULL pointer
-	  in this case.
-	* graphics/nxfonts/nxfonts_sans17x22.h and nxfonts_sans20x26.h:  Add
-	  some very small sans serif fonts.
-	* graphics/nxfonts/nxfonts_sans17x23b.h and nxfonts_sans20x27b.h:  Add
-	  corresponding sans serif bold fonts.
-	* drivers/input/ads7843e.c and tsc2007.c:  Fix some errors in the poll
-	  setup error checking that was cloned into both drivers.
-	* sched/mq_notify.c:  Set errno appropriately on failures.  There are
-	  still several message queue functions that do not set errno!
-	* arch/arm/src/stm32: Fixes to several STM32F40xxx files (contributed by
-	  Mikhail Bychek).
-	* configs/stm3210e-eval/src/up_lcd.c:  Fix banding problem on the R61580
-	  LCD
-	* configs/stm3240g-eval/ostest:  The basic STM32F40xx bringup is functional
-	  (11/12/06) for the STM3240G-EVAL board and passes the OS test.
-	* configs/stm3240g-eval/nsh:  Adds a NuttShell (NSH) configure for the
-	  STM3240G-EVAL board.
-
-6.13 2011-12-26 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32/stm32f40xxx_dma.c:  Add DMA support for the STM32 F4
-	  family (untested on initial check-in)
-	* arch/arm/src/armv7-m/up_fpu.c:  Add logic for saving an restoring VFP
-	  floating point registers on context switches (but also disable the FPU
-	  because CodeSourcery doesn't support hard flowing point!)
-	* arch/arm/src/stm32/chip/stm32_eth.h:  Add Ethernet register definitions
-	  for the STM32 F4.
-	* arch/arm/srcm/stm32/stm32_eth.c:  Adds an Ethernet driver for the STM32 F4.
-	* arch/arm/srcm/stm32/stm32_dac.c and stm32_adc.c: "Skeleton" files for STM32
-	  DAC and ADC drivers.  The actual logic will come later.
-	* arch/arm/srcm/stm32/stm32_eth.c:  There may be a few more lurking bugs, but
-	  the STM32 Ethernet driver appears to be fully functional on the STM3240G-EVAL.
-	* arch/arm/srcm/stm32/stm32_eth.c:  Fix an error in clearing abnormal interrupt
-	  events.
-	* configs/stm3240g-eval/dhcpd:  Add a DCHP daemon configuration for the
-	  STM3240G-EVAL board.
-	* configs/stm3240g-eval/nettest:  Add a network test configuration for the
-	  STM3240G-EVAL board.
-	* arch/arm/srcm/stm32/stm32_rtc.c, stm32f10xxx_rtc.c, and stm32f40xxx_rtc:
-	  Broke out separate drivers to handle the very different RTC implementations
-	  in the STM32 F1 and F4 family.
-	* arch/arm/srcm/stm32/stm32f10xxx_rtc.c:  STM32 F4 RTC is functional (12/14/2011)
-	* net/uip-arp.c: Fix compilation issue with CONFIG_NET_ARP_IPIN
-	* include/nuttx/pwm.h and drivers/pwm.c:  Add an interface definition and a
-	  "upper half" driver for PWM output.
-	* arch/arm/src/stm32/stm32_pwm.c:  Added a PWM "lower half" driver for the
-	  STM32.  The initial check-in is little more than a framework for the driver.
-	* arch/arm/src/stm32/stm32_usbdev.c:  Corrected two CRITICAL errors in the USB
-	  device-side driver:  (1) Handling of data overrun condition was wrong.  When
-	  there was no further memory to accept further OUT endpoint data, the driver
-	  would hang with infinite interrupts; (2) the logic in setting toggle bits
-	  was not correct.  However, this driver has functioned for a long time until
-	  the particular condition that revealed the bug occurred.  My impression is
-	  that this latter bugfix also fixes some STM32 USB performance problems.
-	* configs/hymini-stm32v: A configuration for the HY-Mini STM32v board contributed
-	  by Laurent Latil.  These changes also include support for the STM32F103VCT6.
-	* arch/configs/stm3240g-eval/src/up_pwm.c:  Add hooks needed to use the new
-	  apps/examples/pwm test of the STM32 PWM  driver.
-	* drivers/mtd/mp25x.c:  Add ability to use different SPI modes and different
-	  manufacturers codes.  Fix a error in the wait for not busy (submitted by
-	  Mohammad Elwakeel.
-	* arch/arm/src/stm32/stm32_can.c:  Add a low-level STM32 CAN driver. (Initial
-	  check is incomplete).  Add loopback support to the driver.
-	* arch/arm/src/stm32/stm32_adc.c:  The ADC is now functional.  A more complete
-	  driver would require DMA support.  I have some questions still about the
-	  accuracy of the timer-driven sampling.
-	* configs/sure-pic32mx/nsh:  The PIC32 port is (finally) functional.  Add an
-	  NSH configuration for the Sure PIC32MX board.
-	* configs/sure-pic32mx/*/defconfig.  Calibrated all PIC32 delay loops.
-	* configs/pcblogic-pic32mx/nsh:  Add an NSH configuration for the PCBLogic
-	  PIC32 board.
-	* Both PIC32 OS test and NSH configurations have now been verified.
-
-6.14 2012-01-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* tools/Makefile.export, mkexport.sh, and configure.sh:  Changes submitted
-	  by Mike Smith to support configuration and 'make export' on MAC OS.
-	* arch/arm/src/stm32/stm32_gpio.c:  Disabled interrupts while configuring
-	  GPIO pins so that we have exclusive access to the GPIO configuration
-	  registers.
-	* arch/mips/src/pic32mx/pic32mx_usbdev.c:  Add a USB device-side driver
-	  for the PIC32MX family.
-	* arch/arm/src/stm32/stm32_gpio.c:  Correct an error in some of the GPIO
-	  initialization logic.  Fix submitted by Mike Smith.
-	* configs/olimex-lpc1766stk/src/up_leds.c:  Add new interfaces so that is
-	  CONFIG_ARCH_LEDS are not set, the LEDs may be controlled from application
-	  logic.
-	* configs/olimex-lpc1766stk/src/up_buttons.c:  Add support for the buttons
-	  on the Olimex LPC1766-STK board.
-	* Makefile:  Added 'apps_clean' and 'apps_distclean' target to simplify
-	  managing the state of the application directory while in the NuttX directory
-	* Documentation/NuttXGettingStarted.html:  Added a "Getting Started" Guide
-	  for NuttX.  At present, this is just a stub and it refers to the NuttX
-	  top-level README.txt file which is the only, real "Getting Started" Guide
-	  that exists at the time being.
-	* arch/arm/src/lpc17xx/lpc17_gpioint.c:  Correct an value used as the lower
-	  end of an IRQ number range test.
-	* arch/arm/src/lpc17xx/lpc17_gpio.c:  Fix a integer flow problem in shift.
-	  This error would prevent pins > 15 from being used as interrupt sources.
-	* arch/arm/src/stm32/stm32_can.c:  The CAN driver has been verified in
-	  loopback mode on the STM3240G-EVAL board.
-	* configs/stm3240g-eval/src/up_adc.c: Complete coding of ADC support for the
-	  potentiometer on board the STM3240G-EVAL.
-	* arch/arm/src/lpc17_can.c:  Several CAN driver improvements. Adds support for
-	  testing in loopback mode.  now uses all three transmit buffers for better
-	  performance.
-	* configs/olimex-lpc1766stk/nsh:  Now supports the CAN loopback test as an
-	  optional "built-in" application.
-	* sched/irq_attach.c:  Fix an issue with disabling interrupts when they are
-	  detached.  For the PIC32, this can't be done because there is a 1-to-many
-	  relationship between vector numbers and interrupt numbers or different.
-	  Added a new configuration option CONFIG_ARCH_VECNOTIRQ to at least flag
-	  the architectures that have this issue and to (at least) avoid doing
-	  something too wrong.
-	* drivers/can.c:  Fix a test for buffer full in the generic, "upper half",
-	  can driver.
-	* arch/arm/src/lm3s: Add support for the LM3S6432S2E (Contributed by Mike Smith)
-	* configs/lm3s6432-s2:  Add support for the TI RDK-S2E (LM3S6432S2E) board
-	  (Contributed by Mike Smith)
-	* configs/stm3240g-eval/src: Add APIs support to support user access to the
-	  LEDs
-	* arch/arm/src/lpc17xx/lpc17_can.c: Add logic to change the CAN bit rate based
-	  on the NuttX configuration.
-	* arch/arm/src/lpc17xx/lpc17_can.c: PCLK divisor is now a configuration
-	  option.
-	* arch/arm/src/stm32/stm32_serial.c and stm32_lowputc.c:  Support for
-	  UART4-5 and USART6 added by Mike Smith.  Also includes a more flexible
-	  way of managing UART pin configurations.
-	* include/nuttx/pwm.h, drivers/pwm.c, arch/arm/src/stm32/stm32_pwm.c:  Add
-	  support for pulse count in order to better support stepper motors.
-	* arch/arm/src/stm32/stm32_dumpgpio.c: Checking wrong register to see if
-	  GPIO is enabled.  Also not adding the GPIO base address to several offsets.
-	* configs/stm32f4discovery:  Port to the STMicro STM32F4Discovery board
-	  (Contributed by Mike Smith).
-	* fs/fat/fs_fat32util.c:  On a failure to recognize a FAT file system, the
-	  mount logic should return -EINVAL, not -ENODEV.
-	* arch/arm/src/stm32/stm32_tim.c:  Support for STM32 F4 32-bit timers
-	  (Contributed by Mikhail Bychek)
-	* lib/stdio/lib_vsprintf.c:  Add support for fixed-size fields with floating
-	  point numbers (Contributed by Mikhail Bychek)
-
-6.15 2012-02-12 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32/stm32_pwm.c:  Pulse count was limited to 128; now is
-	  (essentially) unlimited.
-	* configs/stm3240g-eval/include/board.h:  Input frequencies wrong for all but
-	  one APB2 timer.
-	* arch/mips/src/pic32mx/pic32mx-ethernet.c:  The PIC32 Ethernet driver is
-	  code complete, but still untested.
-	* configs/sim/*/Make.defs and arch/sim/src/Makefile:  Add support for building
-	  a 32-bit executable on a 64-bit Linux target.
-	* configs/sure-pic32mx/src/up_leds.c:  Correct GPIOs used for LEDs. The wrong
-	  pins were being used.
-	* arch/arm/src/stm32/chip/stm32f10xxx_gpio.h: Correct offset to one AFIO EXICR
-	  register.
-	* arch/arm/src/lpc17xx/lpc17_can.c:  Added "advanced" configuration options
-	  to specify the CAN TSEG1 and TSEG2 clock counts specifically.
-	* include/nuttx/can.h and drivers/can.c:  Add support for extended (29-bit)
-	  CAN IDs.
-	* arch/arm/src/lpc17xx/lpc17_can.c:  Add support for extended (29-bit) CAN IDs.
-	* arch/arm/src/stm32/stm32_can.c:  Add support for extended (29-bit) CAN IDs.
-	* include/nuttx/power/pm.h:  Move include/nuttx/pm.h into a sub-directory named
-	  power.
-	* drivers/power:  Rename the drivers/pm directory to power
-	* include/power/battery.h and drivers/battery.c:  Add the interface definitions
-	  for an upper and lower half battery driver.  Add the implementation of the
-	  common upper half battery driver.
-	* drivers/power/max1704x.c:  Add a driver for MAX17040x battery "fuel gauge"
-	* arch/arm/src/stm32/stm32_i2c.c: Add support for I2C3
-	* drivers/usbdev/: Lots of name changes: cdc_serial->cdcacm, usbstrg->usbmsc,
-	  usbser->pl2303
-	* drivers/usbdev/composite: Fleshed out support for a composite USB device.
-	* drivers/stm3210e-eval/composite and drivers/stm3210e-eval/src/up_composite.c:
-	  Add a configuration test the USB composite device.
-	* include/nuttx/usb/usb.h, drivers/usbdev/composite_descriptors.c, and
-	  drivers/usbdev/cdcacm_descriptors.c:  Add support for the USB Interface
-	  Association Descriptor (IAD)
-	* arch/arm/src/stm32/stm32_i2c.c: Correct a typo in STM32 I2C3 support
-	  (submitted by Mike Smith)
-	* arch/*/src/Makefile:  Candidate solution for dependency issue in the board
-	  sub-directory:  By making libboard.a a "phony" target, libboard.a should
-	  always rebuilt (the end result is worth the small increase in build time)
-	  (submitted by Mike Smith).
-	* include/net/psock.h:  Added a new low level socket interface that allows the
-	  OS to use the socket interface without having a socket descriptor.
-	* include/net/psock.h: Removed psock.h.  The new interfaces are moved into
-	  nuttx/net.h which already has similar logic.
-	* include/nuttx/usb/usb.h: Can't use 'class' as a field name in USB structures.
-	  This upsets C++ if usb.h is included. 'class' -> 'classid' in this header
-	  file and all places that referenced 'class'
-	* drivers/usbdev/usbmsc.c: Fixed some backward conditional compilation.
-	* sched/on_exit.c:  Add support for the on_exit() function.,
-	* sched/exit.c, task_exithook.c, task_delete.c, sched_releasetcb.c:  Move
-	  the logic that closes file descriptors sooner in the task shutdown sequence.
-	  When drivers are closed, they may need to do things that require a fully
-	  up-and-running task.  Some things cannot be done later when the task is
-	  crippled.
-	* lib/dirent: Moved readdir_r() and telldir() from lib/misc to this new
-	  directory where they belong.
-	* lib/termios.  Implemented tcsetattr() and tcgetattr().
-	* lib/stdio/lib_fgets.c:  The old fgets includes some terminal related
-	  functionality:  It handles VT-100 commands, includes a command line editor
-	  and echo characters back to the terminal.  This old, overloaded fgets()
-	  was renamed readline() and moved to apps/system/readline.  The version
-	  of fgets() in lib/stdio was them simplified and stripped down so that it
-	  *only* gets a string -- as its description implies.
-	* arch/arm/src/lpc214x/lpc214x_usbdev.c:  Add corrections suggested by
-	  David Hewson many, many months ago.
-	* configs/mcu123-lpc214x/composite and configs/mcu123-lpc214x/src/up_composite.c:
-	  Add a configuration to test the USB composite device.
-	* configs/stm3240g-eval/Telnetd:  Add a configuration for testing the
-	  Telnet daemon.
-	* configs/stm3240g-eval/nsh2:  This is another NSH configuration.  It differs
-	  from the original nsh configuration because it does not have an RS-232
-	  console (only a Telnet console) and SDIO is enabled.  This configuration is
-	  required because the STM3240G-EVAL board cannot simultaneously support
-	  RS-232 and SDIO due to pin conflicts.
-	* lib/string/lib_strcasestr.c:  Add strcasestr().
-	* lib/stdio/lib_avsprintf.c:  Add avsprintf().
-	* lib/net/lib_inetntop.c:  Add inet_ntop().
-	* lib/net/lib_inetpton.c:  Add inet_pton().
-	* include/pthread.h:  Correct PTHREAD_MUTEX_INITIALIZER.
-	* fs/fat/fs_fatfs.c:  Fix an error in the FAT statfs() implementation that
-	  was causing some block counts to be reported incorrectly (reported by
-	  David Sidrane).
-	* drivers/ramlog.c:  Add a character driver that can substitute
-	  for /dev/console and or be used for logging debug output when there
-	  is no serial port available (such as when a Telnet console is used).
-	* lib/stdio/lib_syslogstream:  Add a stream object that will be used to
-	  re-direct all debug output to the RAM log if CONFIG_SYSLOG and
-	  CONFIG_RAMLOG_SYSLOG are defined.
-	* lib/misc/lib_dbg.c: Add an interface enabled with CONFIG_DEBUG_ENABLE that
-	  can be used to turn debug output on and off.
-
-6.16 2012-03-10 Gregory Nutt <gnutt@nuttx.org>
-
-	* drivers/sensors/qencoder.c and include/nuttx/sensors/qencoder.h:  Add an
-	  implementation for a quadrature encoder upper half driver.
-	* arch/arm/src/stm32/stm32_qencoder.c/.h:  Add a initial implementation of
-	  a lower-half quadrature encoder driver for the STM32.  On initial check-in,
-	  this is little more than a "skeleton" file.
-	* Various files:  CAN ISO-11783 support contributed by Gary Teravskis.
-	* net/recv.c and net/recvfrom.c: Correct a bug in return value:  The the peer
-	  gracefully closes the connections, needs to return zero and not ENOTCONN.
-	* arch/arm/src/stm32/stm32_eth.c:  Fix an error in the STM32 ethernet driver.
-	  The received buffer size must be two bytes larger to account for the two byte
-	  checksum that is appended to the packet.  Otherwise, the last two bytes of
-	  real data in the packet will get clobbered.
-	* arch/arm/src/stm32f40xx_dma.c:  The STM32 F4 DMA has (finally) been verified
-	* arch/arm/src/stm32_sdio.c:  STM32 F4 SDIO DMA is now supported
-	* configs/stm3240g-eval/nsh/defconfig: This configuration now supports SDIO
-	  with DMA (see configs/stm3240g-eval/README.txt for some issues).
-	* arch/arm/src/armv7-m/up_vectors.S and arch/arm/src/armv7-m/up_vectors.S:  New,
-	  streamlined Cortex-M exception handling (with FPU supported).  Contributed byh
-	  Mike Smith
-	* net/accept.c, connect.c,and net_monitor.c:  Correct an error in the accept
-	  logic.  After a new connection is made via accept(), monitoring for losses
-	  of TCP connection must be set up (just as with connect()).  The new file
-	  net_monitor.c holds the common TCP connection monitoring logic used by both
-	  the accecpt() and connect() logic.  Contributed by Max Nekludov.
-	* net/recvfrom.c and net/uip/uip_tcpcallback.c:  Fix a leak in the TCP
-	  read-ahead logic.  This is a *critical* bug fix!
-	* net/uip/uip_tcpinput.c:  Correct an error in the TCP stack.  It was
-	  incrementing the received sequence number BEFORE determining if the
-	  incoming data could be handled.  If the data was dropped (usually because
-	  there is insufficient buffering space), then no ACK will be sent and the
-	  sequence number will be wrong.  The end consequence of the bad sequence
-	  number was that the when the dropped packet was re-transmitted, it was
-	  was ignored because its sequence number looked wrong.  Fix was, obviously,
-	  to only increment the received sequence number if the TCP data was
-	  accepted.
-	* configs/stm3240g-eval, configs/stm32f40discovery, and arch/*/src/Makefile:
-	  Add changes to support building with the Atollic "Lite" toolchain.
-	* fs/fs_select.c:  Correct select(), in the case of loss of network
-	  connection (POLLHUP), select() must report a read-ready event.  This
-	  is how the standard select() interface is supposed to work:  In the case
-	  of loss-of-connection, select() reports read-ready.  The next time you
-	  read from the socket, you detect the end-of-connection event.  Change
-	  submitted by Max Nekludov.
-	* arch/arm/src/armv7-m/up_fpu.S and arch/arm/src/stm32/stm32_vectors.S:  Fix
-	  lazy FPU register saving with CONFIG_ARCH_FPU is set in the configuration.
-	* arch/arm/src/armv7-m:  Lazy saving of floating point registers on context
-	  switches now seems to be functional.
-	* net/uip/uip_tcpinput.c:  Fix a TCP protocol error reported by Max Nekludov.
-	* configs/stm3240g-eval, configs/stm32f40discovery:  Add changes to support
-	  building with the Atollic "Pro" toolchain.
-	* Makefile:  Use the more common .hex extension for Intel hex files instead of
-	  more precise .ihx extension.  This change has ripple effects to many build-
-	  related scripts and programs and could cause some short-term problems.
-	* configs/stm3240g-eval/, arch/arm/src/stm32/up_allocateheap.c:  Add support
-	  for the 16-mbit SRAM on-board the STM3240G-EVAL board.
-	* drivers/usbdev/cdcacm.c and include/nuttx/usbdev/cdcacm.h:  The CDC/ACM
-	  driver can now be dynamically connected and disconnected from the host
-	  under software control.
-	* include/nuttx/arch.h, configs/stm3240g-eval/src/up_cxxinitialize.c, and
-	  configs/stm3240g-eval/src/up_cxxinitialize.c:  Add support for C++ static
-	  initializers.
-	* net/setsockopt.c, net/getsockopt.c, net/bind.c, net/socket.c:  Add more
-	  low level, thread-independent socket interfaces for use within the OS.
-	  Some of these are currently used by the FTP controlling terminal.  More will
-	  be used to support the NFS file system currently underwork.
-	* include/nuttx/net/:  Major re-organization of networking headerf files.
-	  Moved all non-standard, NuttX-specific header files from include/net and
-	  include/nuttx into include/nuttx/net.
-	* arch/mips/src/pic32mx/pic32mx_usbdev.c:  The PIC32 USB driver now appears to
-	  be fully functional.
-	* configs/sure-pic32mx/usbnsh and configs/sure-pic32mx/src:  Add support for
-	  NSH using only USB serial I/O to support the console.  This is useful on
-	  devices that have USB, but no serial port.
-	* arch/mips/src/pic32mx/pic32mx_spi.c:  Add a PIC32 SPI driver.  Initial
-	  checkin is primitive, incomplete (lacks interrupt logic), and untested.
-	* configs/pic32-startkit/nsh:  Completed verification of the PIC32 Ethernet
-	  Starter Kit port.  Added and verified the NuttShell (NSH) on the PIC32
-	  Ethernet Starter Kit.  I can now (finally) claim to have complete the
-	  basic port to this board.
-	* configs/pic32-startkit/nsh/up_usbdev, up_nsh.c, and up_usbterm.c:  Verified
-	  the USB (device) driver on the PIC32 Ethernet Starter Kit.
-	* arch/mips/src/pic32mx/pic32mx_ethernet.c:  Verified the PIC32 Ethernet
-	  driver on the PIC32 Starter Kit.  Status:  It is occasionally functional
-	  but not stable enough for use.
-	* arch/arm/include/stm32, arch/arm/src/stm32:  Add general support for
-	  the STM32 F2 family. Contributed by Gary Teravskis,
-	* configs/stm3220g-eval:  Add support for the STMicro STM3220G-EVAL board.
-	  Contributed by Gary Teravskis,
-
-6.17 2012-04-14 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/sure-pic32mx: Add support for the Sure DB-DP11212 PIC32 General
-	  Purpose Demo Board
-	* arch/arm/src/stm32/stm32_usbhost.c/.h:  Add files that will (eventually)
-	  hold an STM32 USB host driver (the initial check-in is the NuttX LPC17
-	  USB host driver with name changes only).
-	* arch/arm/src/stm32/chip/stm32_otgfs.h:  STM32 USB OTG FS register
-	  definitions (not complete on initial check-in).
-	* net/connect.c:  Add another low level, thread-independent socket interface
-	  for use within the OS.
-	* arch/mips/src/pic32mx/pic32mx_ethernet.c:  The PIC32 Ethernet driver
-	  is now stable on the PIC32 Starter Kit.
-	* configs/pic32-starterkit/nsh2:  Add a PIC32 Ethernet Starter Kit NSH
-	  configuration that has no serial console; all interaction is done via
-	  Telnet.
-	* net/netdev_sem.c:  Correct a deadlock condition by making a semaphore
-	  recursive.  To my knowledge this deadlock only occurs when running the
-	  NSH command ifconfig over Telnet.  In that case the function netdev_foreach
-	  takes the network device semaphore, but so does the telnet logic causing
-	  the deadlock.
-	* arch/arm/src/stm32/stm32_pm*.c: Add basic STM32 power management logic
-	  that will eventually be used to implement low power states.
-	* arch/arm/src/stm32/stm32f*0xx_rcc.c:  In order to use CAN2, both CAN1 and
-	  CAN2 clocking must be enabled.
-	* arch/mips/src/pic32mx/picm32mx-usbdev.c:  Several stall-related fixes so that
-	  the USB device driver can used the mass storage class (which does a LOT
-	  of stalling as part of its normal protocol).  The PIC32 USB Mass Storage
-	  device is, however, still non-functional when debug is OFF.
-	* include/nuttx/fs: Move all file-system related files from include/nuttx to
-	  include/nuttx/fs.
-	* include/nuttx/serial: Move all serial-driver related files from include/nuttx to
-	  include/nuttx/serial.
-	* include/nuttx/clock.h and sched/clock_initialize.c:  Add a new OS interface
-	  called clock_sychronize() that can be used to re-synchronize the NuttX
-	  system time with a hardware RTC.  This function is called normally at power
-	  up but may also need to be called when recovering from certain low-power
-	  usage states where the system time is no longer accurate.
-	* arch/arm/src/calypso and arch/arm/include/calypso: Support for the TI "Calypso"
-	  phone processor. Contributed by Denis Carilki and includes the work of Denis,
-	  Alan Carvalho de Assis, and Stefan Richter.
-	* configs/compal_e88 and configs/compal_e99:  Support for Compal e88 and e99 phones
-	  Contributed by Denis Carilki and includes the work of Denis, Alan Carvalho de
-	  Assis, and Stefan Richter.
-	* arch/arm/src/lpc17xx: Several fixes for error that have crept in for the LPC17xx
-	  DAC.  Contributed by by Lzyy.
-	* graphics/nxconsole:  Add a character driver that can be used as a console output
-	  device for text output (still under development on initial check-in).
-	* graphics/nxmu:  Fix several compilation errors that have crept into the multi-
-	  user NX server because of lack of use.
-	* graphics/nxconsole:  The NX text console is basically function (in multi-
-	  user NX mode only).
-	* arch/arm/src/stm32/stm32_i2c.c: Correct a bug in the STM32 I2C driver.  The
-	  behavior of I2C status bits seems to be different between F1 and F4.
-	* configs/stm3210e-eval/nxconsole:  New STM32 F1 configuration that runs the
-	  NuttShell (NSH) within an NX window.
-	* graphics/nxconsole/nxcon_sem.c:  Add protection from re-entrance with debug
-	  is enabled.
-	* include/nuttx/ascii.h and vt100.h:  Header files to centralize ASCII and
-	  VT100 escape sequence definitions.
-	* graphics/nxconsole/nxcon_vt100.c:  Add add framework to support VT100 escape
-	  sequences in NxConsole.
-	* fs/fs_read.c:  Fix read() return value for attempt to read from write-only
-	  file or device.  Was returning EBADF, should return EACCES.
-	* graphics/nxconsole.c:  NxConsole now supports backspace and a cursor.
-	* Kconfig and arch/sim/Kconfig:  Beginnings of support for a NuttX
-	  configuration tool.  Currently using the kconfig parser 'kconfig-frontend'
-	  available at http://ymorin.is-a-geek.org/projects/kconfig-frontends
-	  (version 3.3.0-1 is also available in the NuttX SVN at
-	  trunk/misc/tools/kconfig-frontends-3.3.0-1.tar.gz).  Contributed by Lzyy.
-	* */Kconfig:  Added skeleton Kconfig files to all directories that
-	  may need them.
-	* include/nuttx/math.h:  Moved include/math.h to include/nuttx/math.h
-	  because it conflicts too often with the system math.h (and people aren't
-	  inclined to read the documentation on how to handle this).  Now, if
-	  CONFIG_ARCH_MATH_H=y is defined, the top-level makefile will copy
-	  the redirecting math.h header file from include/nuttx/math.h to
-	  include/math.h.  So for the architectures that define CONFIG_ARCH_MATH_H=y,
-	  include/math.h will be in place as it was before; for the architectures
-	  that don't select CONFIG_ARCH_MATH_H, the redirecting math.h header
-	  file will stay out-of-the-way in include/nuttx/.
-	* Kconfig, sched/Kconfig, lib/Kconfig, libxx/Kconfig, arch/sim/Kconfig,
-	  drivers/Kconfig, drivers/mtd/Kconfig, drivers/input/Kconfig
-	  drivers/analog/Kconfig, drivers/lcd/Kconfig:  Updated kernel
-	  configuration support provided by Lzyy.
-	* Kconfig:  Many more Kconfig updates (no longer tracking in the ChangeLog)
-	* arch/arm/src/Makefile, arch/x86/src/Makefile, arch/avr/src/Makefile,
-	  arch/mips/src/Makefile, arch/sim/src/Makefile, arch/hc/src/Makefile,
-	  arch/sh/src/Makefile:  The libgcc.a in newer versions of GCC now
-	  have an dependency on an external implementation of abort().  This
-	  required modification to the Makefiles that do the final link:  Now
-	  libgcc.a must be included within the group of libraries that are
-	  search recursively.
-	* arch/arm/srm/stm32/stm32_otgfsdev.c:  A USB OTG FS device-side driver
-	  for the STM32 F4 (and maybe F2 and F1 connectivity line).
-	* tools/cmpconfig.c:  A tool for comparing two configuration files.
-	* include/nuttx/usb/usbdev.h, drivers/usbdev/*, arch/*/src/*/*usb*.c:
-	  Extend the USB device side interface so that EP0 OUT data can be passed
-	  with OUT SETUP requests.
-	* include/nuttx/watchdog.h:  Add the definition of a standard watchdog
-	  driver interface.
-	* drivers/watchdog.c:  The "upper half" watchdog timer driver.
-
-6.18 2012-05-19 Gregory Nutt <gnutt@nuttx.org>
-
-	* Kconfig:  Continued Kconfig file updates (no longer tracking on a per-file
-	  basis in the ChangeLog)
-	* arch/arm/src/stm32/stm32_iwdog.c and stm32_wwdog.c:  Add the STM32 IWDG
-	  and WWDIG watchdog timer driver.
-	* configs/stm3240g-eval/src/up_lcd.c: Add LCD from for the STM3240G-EVAL (the
-	  initial check-in is just a stm3210e-eval driver with renaming).
-	* sched/sched_setscheduler.c:  Correct successful return value (Contributed
-	  by Richard Cochran).
-	* include/fcntl.h and lib/stdio:  Ignore CONFIG_STDIO_LINEBUFFER is the
-	  file was opened in binary mode.
-	* lib/stdio/lib_fopen.c:  Correct an error in parsing open mode string.  The
-	  plus sign may not appear right after the basic mode.  For example, "r+", "rb+",
-	  and "r+b" are all valid open strings and mean the same thing.
-	* lib/stdio/lib_fopen.c:  Correct return errno value from f_open() and
-	  f_fdopen() if the open mode string is invalid.
-	* drivers/serial/serial.c:  Do not disable Rx interrupts on each byte.
-	  Rather, only disable Rx interrupts when the Rx ring buffer may be empty.
-	* include/nuttx/usb/audio.h:  USB Audio 1.0 definitions (in progress).
-	* arch/arm/src/stm32/stm32fxx_dma.c:  STM32 F4 DMA now supports circular
-	  buffer mode (contributed by Mike Smith)
-	* arch/arm/src/stm32/stm32_serial.c:  The serial driver can now support
-	  Rx DMA into a circular buffer (contributed by Mike Smith)
-	* configs/pic32mx7mmb: Beginning of a configuration for the Mikroelektronka
-	  PIC32MX7 Multimedia Board (MMB).
-	* net/recvfrom.c:  Fix a compilation problem.  Some UDP logic was conditioned
-	  on TCP, not UDP.
-	* drivers/usbdev/cdcacm.c: Fix an infinite loop that occurs when the serial
-	  device is unregisters.
-	* arch/arm/src/stm32/stm32_otgfs.c: The driver needs to reset the software (in
-	  order to flush the requests) and to disable the software connection when the
-	  device is unregistered.
-	* include/sys/prctl.h, sched/prctl.c, include/pthread.h:  Add interfaces to
-	  support getting and setting of the thread or task name.
-	* configs/ubw32:  Added a configuration to support the Sparkfun UBW32 PIC32 board.
-	* configs/ubw32/nsh:  Added an NSH configuration for the Sparkfun UBW32 PIC32 board.
-	* configs/ubw32/up_buttons.c:  Added button support for Bit Whacker board.
-	* configs/stm3240g-eval/nxconsole:  Added a configuration to run the NSH
-	  shell in an NX window for the STM3240G-EVAL board.
-	* include/cxx/cunistd:  C++ header file to make sure that everything in
-	  unistd.h is in the std:: namespace.
-	* configs/sim/nxwm:  Added a configuration for testing the NuttX Window Manager
-	  (NxWM)
-	* fs/fs_fcntl.h:  On success, always returned OK.  However, some fcntl commands
-	  require returning other values on success.
-	* Various files.  Fix warnings about variables that were initialized by not used.
-	* configs/sim/*/defconfig:  Changes to build a 32-bit simulation on a 32-bit
-	  platform did not make into all of the Make.defs files.
-	* graphics/nxmu/nx_move.c:  Wrong opcode was being used in the server message;
-	  Also there was an error in the offset calculation.
-	* graphics/nxglib/fb/nxglib_moverectangle.c:  Offset argument is really a
-	  position, not an offset.
-	* graphics/nxtk/nxtk_drawframe.c:  Framed windows are now drawn in three
-	  colors (instead of just two).
-	* drivers/input/stmpe811_*:  Added a driver to support the STMicro STMPE811
-	  IO Expander and touchscreen driver.
-	* configs/stm3240g-eval/nxwm:  Added to configuration for testing the NxWM
-	  window manager on the STM3240G-EVAL board.
-	* graphics/nxtk/nxtk_toolbarbounds.c:  Added an interface to get the toolbar
-	  bounding box.
-	* graphics/nxtk/nxtk_drawframe.c:  Fix an error in drawing the window frame.
-	* NX, NxConsole:  Replace CONFIG_NXCONSOLE_NOGETRUN to CONFIG_LCD_GETRUN.  The
-	  inability to read from the LCD is a property of the LCD, not of NxConsole.
-	  Then add CONFIG_NX_WRITEONLY which is the more generic way of saying that
-	  no NX component should try to read from the underlying graphic device (LCD
-	  or other).
-	* configs/stm3240g-eval/src/up_stmpe811.c:  Add board-specific support for the
-	  the STMPE811 I/O expander on the STM3240G-EVAL board.  Verfied that the
-	  STM3240G-EVAL touchscreen is now fully functional.
-	* include/cxx/cfcntl:  Added std:: header file.
-	* graphics/nxbe/nxbe_filltrapezoid.c and graphics/nxglib/fb/nxglib_filltrapezoid.c:
-	  Fix several errors in the trapezoid fill logic.
-	* include/nuttx/input/touchscreen.h, configs/hymini-stm32, configs/stm3240g-evel,
-	* configs/sam3u-ek, configs/sim, arch/sim/src/up_touchscreen.c, and
-	  apps/examples/touchscreen: Standardize the board-specific, touchscreen
-	  initialization interfaces.
-	* drivers/input/stmpe811_base.c and configs/stm3240g-eval:  The STMPE811-based
-	  touchscreen seems to work better with edge (vs. level) interrupts
-	* drivers/input/stmpe811_tsc.c:  Fix some status checks so that the touchscreen
-	  interrupt handling logic does not read data if the fifo is not at the
-	  threshold level.
-	* include/nuttx/wqueue.h: Add macro work_available() to determine if the
-	  previously scheduled work has completed.
-	* drivers/stmpe811_tsc.c:  Correct errors: (1) Since all interrupt logic is done on
-	  the worker thread, disabling interrupts does not provide protected; Need to
-	  disable pre-emption.  (2) Fix handling of touch ID and (2) add some logic to
-	  prevent certain kinds of data overrun.
-	* include/nx/nxtk.h and graphics/nx/nxtk/nxtk.h:  Move setting
-	  of configuration defaults from the internal header file to a place where
-	  other logic can use the defaults.
-	* graphics/nxtk/nxtk_events.c:  Fixed an important but in the logic that
-	  translates the mouse/touchscreen position data for framed windows and toolbars.
-	* drivers/input/stmpe811_tsc.c, tsc2007.c, and ads7843e.c:  Need to keep track of
-	  when if positional data is valid.  When the touch is released, the X/Y position
-	  of the release must be the same as the X/Y position of the last touch (se that
-	  the release occurs in the same window as the last touch).
-	* graphics/nxtk/nxtk_events.c:  Fix an error in mouse/touchscreen input logic:
-	  Was autoraising the window AFTER processing the mouse press.  This raises havoc
-	  if the result of processing the mouse click was to raise some other window!
-	* graphics/nxtk/nxtk_events.c:  I had to disable the whole autoraise feature
-	  for multi-user case because it does not work correctly.  In a scenario where (1) there
-	  are multiple queued touchscreen events for the same window and (2) the result of the
-	  first input was to switch windows, then the autoraise implementation will cause the
-	  window to revert to the previous window.  Not good behavior.
-	* sched/sched_mergepending.c:  Add task switching instrumentation.  There is a case
-	  here where instrumentation was missing.  Contributed by Petri Tanskanen.
-	* CONFIG_STMPE811_THRESHX, CONFIG_STMPE811_THRESHX, and drivers/stmpe811_tsc.c:  Add some
-	  thresholding controls to all slow down processing of touchscreen samples.
-	  This is a problem with NX in multi-user mode:  touchscreen data gets sent
-	  via a message and when the message queue gets full the sender blocks and
-	  touch events are lost.  Basic data overrun.  The badly effects touchscreen
-	  human factors.
-	* include/sched.h:  Fix a typo (missing semicolon) in prototype of on_exit();
-	* sched/on_exit.c and include/nuttx/sched.h:  Fix some old typos that caused
-	  compilation errors when CONFIG_SCHED_ONEXIT is defined.
-	* configs/stm3240g-eval/nxwm/defconfig:  The default NxWM now uses the STMPE811
-	  touchscreen.
-	* include/cxx/csched: Added
-	* graphic/nxmu/nxmu_sendserver.c, nxmu_sendwindow.c, and nxmu_sendclient.c:
-	  Refactor NX messaging logic in preparation for a new message control
-	  feature.
-	* graphics/nxtk, graphics/nxmu, include/nuttx/nx:  Add a new window communication
-	  to support blocking and flushing of client window messages.  If there are
-	  stale, queue window messages at the time that a window is destroyed, very bad
-	  things happen.
-
-6.19 2012-06-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* graphics/nxconsole/nxcon_kbdin.c:  If selected, the NxConsole will take
-	  input from the NX keyboard input callback.  If this option is set, then
-	  the interface nxcon_kdbin() is enabled.  That interface may be driven by
-	  window callback functions so that keyboard input *only* goes to the top
-	  window. If CONFIG_NXCONSOLE_NXKBDIN is not selected, then the NxConsole
-	  will receive its input from stdin (/dev/console).  This works great but
-	  cannot be shared between different windows.  Chaos will ensue if you
-	  try to support multiple NxConsole windows without CONFIG_NXCONSOLE_NXKBDIN
-	* graphics/nxmu/nx_kbdin.c:  Fix pointer argument.  This is a error
-	  introduced in changes leading up to the 6.18 release.  This error will
-	  cause crashes or perhaps simply not work when you try to handle window
-	  keyboard data in multi-user mode.
-	* graphics/nxconsole/nxcon_kdbind.c:  Fixed unmatched sem_wait and sem_post.
-	  Fix some conditional compilation that included a few too many lines of code.
-	* drivers/input/stmpe811_tsc.c and stmpe811.h:  Add a timeout to catch missed
-	  pen up events.  Now the STM3240G-EVAL touchscreen works very smoothly.
-	* configs/stm3240g-eval/nxwm/defconfig: Enable support for NxConsole keyboard
-	  input. Increasing spacing of icons.
-	* configs/stm3240g-eval/nxwm/defconfig: Use a larger font for the calculator.
-	* include/nuttx/lcd/ssd1289.h, drivers/lcd/ssd1289.c and .h:  Generic LCD
-	  driver for LCDs based on the Solomon Systech SSD1289 LCD driver.  This
-	  of this as a template for an LCD driver that will have to be cusomized
-	  for your particular LCD hardware.
-	* configs/stm32f4discovery/src/up_extmem.c and up_ssd1289.c:  Add support to
-	  STM32F4Discovery for than an external, SSD1289-based LCD.
-	* configs/stm32f4discovery/nxlines:  Add an STM32F4Discovery configuration
-	  to test the SSD1289-based LCD.
-	* configs/stm3240g-eval/src: Add USB GPIO initialization logic needed
-	  in board-specific boot logic.
-	* configs/stm32f4discovery/src: Add USB GPIO initialization logic needed
-	  in board-specific boot logic.
-	* drivers/usbdev/pl2303.c and cdcacm.c:  Fix the request size used for sending
-	  packets.  It was not using the maximum request size, but instead the previous
-	  request size.  As a result, packets get smaller, and smaller, and ...  This
-	  is an important USB serial fix.
-	* arch/arc/src/stm32_otgfsdev.c: Bug fix: Don't process TXFE if we have
-	  already processed an XFRC interrupt.  We have already done what needs
-	  to done in that case.
-	* arch/arc/src/stm32_otgfsdev.c:  Fixed some status settings in queuing of write
-	  messages. Added a "hack" to work around missing TxFIFO empty interrupts.  The
-	  hack is basically to poll for space in the TxFIFO instead of setting up
-	  the interrupt.
-	* arch/arm/src/stm32/stm32f2* and chip/stm32f2*:  Update all STM32 F2 file so
-	  that they are equivalent to F4 files.  This is kind of a maintenance nightmare.
-	* configs/stm3220g-eval/: Update existing configurations to the same level
-	  as the corresponding STM3240G-EVAL configurations.  This adds FSMC SRAM,
-	  touchscreen, and LCD support.
-	* configs/stm3220g-eval/: Add a NxWM configuration for the STM3220G-EVAL.
-	* stmpe11*: Fix a massive naming problem.  All references to STMPE11 should be
-	  STMPE812.
-	* arch/arm/src/stm32/stm32_otgfsdev.c: Need to enabled USB reset interrupt
-	  (contributed by Erik Van Der Zalm).
-	* sched/sleep.c:  Fix the return value from sleep().  The correct behavior is
-	  to return the number of unwaited seconds; the implementation was always
-	  returning zero.
-	* sched/usleep.c and include/unistd.h:  Was a void function, but should return
-	  0 on success.  usleep() needs to check the return value from sigtimedwait().
-	  sigtimewait() returns the signal number that awakened it and an error (EAGAIN)
-	  if the timeout expired (normal case).
-	* sched/sig_timedwait.c:  Fix sigtimedwait() return value.  On a timeout, it was
-	  setting the 8-bit si_signo field to -1 and eded up reported successfully awakened
-	  by signal 255!  Now detects the timeout and errors -1 with errno == EGAIN.  If
-	  sigtimedwait() is awakened by an unblocked signal, but it is not one of the
-	  signals in the waited-for set, it will return -1 with errno == EINTR.
-	* arch/arm/src/stm32_i2c.c:  Fix STM32 F2 I2C.  It is apparently bug-for-bug
-	  compatible with the F4 and needs the same work-around for the missing BTF
-	  signal that was needed for the F4.
-	* drivers/lcd/ssd1289.*:  Fix some of the initial register settings.
-	* configs/stm32f4discovery/src/up_ssd1289.c: FSMC address bit 16 is used to
-	  distinguish command and data.  But FSMC address bits 0-24 correspond to ARM
-	  address bits 1-25, se we need to set bit 17 in order generate output on
-	  FSMC_A16.
-	* arch/arm/src/lm3s/lm3s_epi.h and lm3s_timer.h:  LM3S header files
-	  (contributed by Max Neklyudov).
-	* arch/arm/src/stm32/stm32_irq.c:  Some of the interrupt priorities were
-	  not be initialized (F2 and F4 only).  Thus, the very high numbered
-	  interrupts (like UART6) and cause nested interrupts.  This leads to
-	  some very difficult to debug crashes.  Fix contributed by Mike Smith.
-	* arch/mips/src/pic32/pic32_head.S and pic32_config.h and
-	  configs/pic32mx7mmb/include/board.h:  Extended PIC32 device configuration
-	  capabilities and change board.h to support unique clocking requirements
-	  of the Mikroelektronika PIC32MX7 MMB.  That board now works!
-	* configs/pic32mx7mmb/nsh:  Added and verify a NuttShell configuration
-	  for the Mikroelektronika PIC32MX7 MMB board.
-	* arch/mips/pic32/pic32mx-ethernet.c:  Fix logic that guesses PHY address;
-	  the search loop missed the PHY address needed by the Mikroelektronika
-	  PIC32MX7 MMB board.
-	* configs/pic32mx7mmb/nsh:  Configuration now supports a network by default.
-	* configs/pic32mx7mmb/src:  Add support for the MMC/SD slot on board
-	  the Mikroelektronika PIC32MX7 MMB board (not working on initial check-in).
-	* arch/mips/src/pic32/pic32mx-spi.c:  Add support for very low-level,
-	  register access debug output.
-	* configs//pic32mx7mmb/include/board.h:  Reduced peripheral clock to
-	  4MHz to match other PIC32 configurations.
-	* configs/pic32mx7mmb/src/up_nsh.c:  SD card needs to operate in SPI
-	  mode 2.
-	* configs/pic32mx7mmb/nsh/defconfig:  MMC/SD card support is now
-	  enabled by default in the PIC32MX7 MMB board configuration.
-	* configs/pic32mx7mmb/nsh/defconfig:  Verified the USB Mass Storage
-	  Class (MSC) using MMC/SD card as the logical unit.  Updated the default
-	  PIC32MX7 MMB board configuration so that USB and the mass storage class
-	  are enabled by default.
-	* drivers/lcd/mio283qt2.c and include/nuttx/lcd/mio283qt2.h:  Add generic
-	  support for the MIO283QT2 LCD.
-	* configs/pic32mx7mmb/src/up_mio283qt2.c:  Add support for the MIO283QT2
-	  LCD on the PIC32MX7 MMB board.
-	* configs/pic32mx7mmb/src/up_touchscreen.c:  Add an ADC-based touchscreen
-	  driver for the PIC32MX7 MMB board.  Kind of works, but needs more
-	  verification and tuning.
-	* arch/mips/src/common/up_idle.c:  Strange but important fix.  For some still-
-	  unknown reason, interrupts are left in an unhealthy state in the IDLE
-	  when the work queue is enabled.  This is partially because some interrupt
-	  related logic is not built in that case.  Simply disabling then re-
-	  enabling interrupts restores the proper state.
-	* graphics/nxglib/lcd/nxglib_filltrapezoid.c and fb/nxglib_filltrapezoid.c:
-	  Fix an error when the trapezoid is only 1 line high.  In this case, a
-	  divide by zero error would occur.  The fix is to draw the 1 line high
-	  trapezoid as a run.
-	* drivers/usbdev/pl2303.c:  Fix a cut'n'paste error that snuck into
-	  the PL2303 emulation driver several months back.
-
-6.20 2012-07-12 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/stm3210e-eval/src and arch/arm/src/stm32/: Add beginnings of
-	  power management support for the STM32 and the STM3210E-EVAL board, in
-	  particular.
-	* Documentation/NfsHowTo.html:  Add a How-To document for the new NFS
-	  client feature.
-	* arch/mips/include/pic32mx and arch/mips/src/pic32mx:  Add support for the
-	  PIC32MX1 and PIC32MX2 families.
-	* configs/mirtoo:  Add a board configuration to support the DTX1-4000L
-	  "Mirtoo" module from http://www.dimitech.com/
-	* tools/pic32mx:  All of the duplicate directories containing the same
-	  same PIC32 tools were move to this single location.
-	* configs/mirtoo:  The basic Mirtoo port is now functional.
-	* configs/mirtoo/ostest:  Added support for the microchipOpen toolchain
-	  (see http://sourceforge.net/projects/microchipopen/).
-	* configs/mirtoo/nsh:  Added a NuttShell (NSH) configuration for
-	  the Mirtoo module.
-	* configs/mirtoo/scripts:  Move all Mirtoo linker scripts to a common
-	  directory.
-	* arch/mips/src/pic32mx/pic32mx-gpio.c:  All digital inputs were being
-	  configured as outputs.  This is a *critical* bug fix and needs to be
-	  incorporated by any PIC32 users.
-	* drivers/mtd/sst25.c:  Added a driver for the SST 25 SPI-based FLASH
-	  parts.
-	* configs/mirtoo/src/up_nsh.c:  The Mirtoo NSH configuration can now
-	  mount the SST 25 devices so that it can be used for a FAT file system.
-	  There are are, however, some NSH memory usage issues if this configuration
-	  enabled now.  Some tuning is still needed.
-	* configs/mirtoo/nxffs:  Add an alternative NSH configure for the Mirtoo
-	  module for testing the on-module SST 25 chip using the NXFFS file system.
-	* arch/arm/src/lpc43xx and arch/arm/include/lpc43xx:  The NXP LPC43xx port
-	  is slowly evolving in these directories.
-	* configs/stm3210e-eval/pm:  Add a new configuration for testing STM32 power
-	  management.
-	* configs/stm3210e-eval/scripts:  Moved all of the duplicate ST3210-EVAL
-	  linker scripts into one set of linker scripts at this location.
-	* configs/stm3210e-eval/src/up_buttons.c, up_lcd.c, and up_pm.c:  New logic
-	  for testing STM32 power management.
-	* configs/lincoln60:  Add a configuration to support the Micromint Lincoln60
-	  board.
-	* configs/ekk-lm3s3b96:  Add a configuration to support the TI/Stellaris
-	  EKK-LM3S3B96 development board.  Contributed by Jose Pablo Rojas V.
-	* arch/arm/src/lpc43xx/chip:  Created header files for *all* (really)
-	  lpc43xx registers and all bit-fields.
-	* configs/lpc4330-xplorer:  Added a configuration for the NXP LPC43XX
-	  Xplorer board.  This is just to facilitate testing of the LPC43xx
-	  port but will, with any luck, become proper board support for that
-	  board.
-	* arch/arm/src/lm3s/lm3s_syscontrol.c:  Fix an optimization related problem
-	  by adding a volatile qualifier to a timing loop.  Oddly, the consequence
-	  of the bug is that when debug was off, the LM3S platform too a long time
-	  to boot.  It now boots rapidly whether debug is on or off.
-	* arch/*/include/limits.h:  Change all values in all limits.h for all
-	  architectures to signed decimal; the hex values were not sign extending
-	  appropriate in most uses (reported by Lorenz Meier).
-	* arch/arm/src/stm32/chip/stm32f103/7vc_pinmap:  Fix typographical error in
-	  two pinmap definition files.
-	* lib/net/lib_inetntoa.c:  Fix typographical error that cause compilation
-	  failure on platforms that do not support passing of structures as
-	  parameters.
-	* arch/arm/*/lpc43xx and configs/lpc4330-xplorer and code complete and
-	  ready for testing.  Hopefully, verified LPC43xx support will appear
-	  in NuttX-6.20.
-	* include/nuttx/stdarg.h:  If CONFIG_ARCH_STDARG_H=y is defined, the top-level
-	  makefile will copy the generic (GCC-only) stdarg.h header file from
-	  include/nuttx/stdarg.h to include/stdarg.h.  So for the architectures
-	  that cannot use their GCC toolchain's stdarg.h file, they can use this
-	  alternative by defining CONFIG_ARCH_STDARG_H=y.  If CONFIG_ARCH_STDARG_H,
-	  is not defined, then the redirecting stdarg.h header file will stay
-	  out-of-the-way in include/nuttx/.
-	* configs/lpc4330-xplorer/nsh:  Add an NSH configuration for the LPC4330
-	  Xplorer board.
-
-6.21 2012-08-25 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/lpc4330-xplorer/up_nsh.c:  Add support for a basic SPIFI block
-	  driver for use by NSH.  Does not work!  Crashes on first SPIFI write.
-	* configs/lpc4330-xplorer/*/defconfig: Calibrate delay loops (this is
-	  based on the current "slow" 72MHz M4 clock and will need to be
-	  re-calibrated when this is increased).
-	* configs/stm3220g-eval/include/board.h and configs/stm3240g-eval/include/board.h:
-	  The SDIOCLK frequency in the F2 and F4 derives for PLL48CLK and not HCLK
-	  so that the SDIOCLK input frequency should always be 48MHz.
-	* sched/os_internal.h, sched_setupidlefiles.c, sched_setuptaskfiles.c, and
-	  sched_setupidlefiles.c:  Detangle some conditional compilation.  Allow for
-	  a perverse configuration that has socket descriptors and streams but no file
-	  descriptors (sure, why not?).
-	* sched/: Stylistic clean-up of all files.  Some of these files are pretty old
-	  and do not follow current NuttX coding standards in detail.
-	* fs/: More stylistic file clean-up.
-	* mm/: More stylistic file clean-up.
-	* drivers/ and drivers/serial/: More stylistic file clean-up.
-	* arch/arm/src/lpc43xx/lpc43_clockconfig.c:  Fix PLL1 bit manipulation logic.
-	  Critical bugfix! This would often cause the LPC43xx to fail to boot.
-	* arch/arm/src/lpc43xx/lpc43_rgu.c:  The soft reset logic called from the
-	  beginning of __start seems cause problems.  A magic delay seems to improve
-	  the logic some.  But I suspect that real fix is to get rid of all of the
-	  soft reset logic.  This would also be a critical bugfix if I believed
-	  that it really fixed all of the issues.
-	* arch/arm/src/lpc43xx/chip/lpc43_cgu.h:  Fix a bit mask in the PLL1
-	  control register.  Critical bugfix.
-	* arch/arm/src/lpc43xx/lpc43_clockconfig.c and configs/lpc4330-xplorer/include/board.h:
-	  Implement PLL1 ramp-up logic; Now the LPC43xx is running at 204MHz.
-	* configs/lpc4330-xplorer/*/defconfig:  Re-calibrated delay loops using
-	  the 204MHz clock.  The LPC43xx ripping rips!  This calibration was performed
-	  with symbols enabled and all optimization disabled.  It will need to be
-	  better recalibrated again down the road.
-	* arch/arm/src/stm32/stm32_exti.c:  Renamed to rch/arm/src/stm32/stm32_exti_gpio.c
-	  to make a little room in the file name space.
-	* arch/arm/src/stm32/stm32_exti_alarm.c:  Add initial logic to attached the
-	  RTC alarm EXTI interrupt.  This is work be performed mostly by Diego Sanchez.
-	* include/: More stylistic file clean-up.
-	* arch/arm/src/lpc43xx/lpc43_spifi.c, lpc43_spifi.h, and chip/lpc43_spifi.h:  Add
-	  logic to configure and initialize the SPIFI device (does not yet work).
-	* configs/lpc4330-xplorer/include/board.h:  Reduce SPI SCLK value.
-	* arch/arm/src/lpc43xx/lpc43_spifi.c, lpc43_spifi.h, and chip/lpc43_spifi.h:
-	  Logic completely redesigned.  It now creates an MTD driver to access SPIFI...
-	  but the driver still does not work.
-	* arch/arm/src/stm32 and arch/arm/include/stm32: Make name of RTC ALARM interrupt
-	  common on STM32 F1,2,4
-	* arch/arm/src/stm32 and arch/arm/include/stm32: Add support for the
-	  STM32F100x "Value Line" devices. This includes changes to stm32F10xx_rcc.c that
-	  add the ability to run the chip off the internal oscillator.  There is no open
-	  board configuration for this part yet (the STM32VLDiscovery would be a candidate).
-	  Contributed by Mike Smith.
-	* arch/arm/src/stm32: Fixed typos in conditional compilation in the CAN and DMA
-	  and some pin configuration.  This would have caused problems for STM32 F107xx.
-	  Typos noted by Mike Smith.
-	* arch/arm/src/lpc43xx/lpc43_serial.c:  Add support for certain RS-485 features
-	* lib/termios/lib_cfsetispeed.c, lib_cfsetospeed.c, lib_tcflush.c:  Add
-	  simple implementations of cfsetispeed(), cfsetospeed(), and tcflush().
-	* include/sys/str_tty.h, lib/lib_setspeed.c, lib_getspeed.c, and lib_resetspeed.c:
-	  Add APIs to support setting non-standard BAUD values not supported by POSIX
-	  termios.  These are non-standard interfaces but have a precedence:  There are
-	  similar interfaces in AIX.
-	* include/sys/str_tty.h, lib/lib_setspeed.c, lib_getspeed.c, and lib_resetspeed.c:
-	  Sigh... removed.  We don't need any more almost standard interfaces!  (SVN
-	  revision 4968 if you want the short-lived code).
-	* include/termios.h and lib/termios/*:  Open the existing, standard termios
-	  interfaces to permit some non-standard baud settings.  The new termios definitions
-	  still supports the POSIX standard except that it does not strictly enforce
-	  baud rate settings, permitting some non-portable, but useful baud rate settings
-	  (this is what the short-lived AIX-like interfaces would have accomplished as well).
-	* include/termios.h and lib/termios/*:  Redesigned yet again (this is getting
-	  painful.  NuttX now supports the BOTHER baud setting just as Linux does.  termios
-	  Bxxx definitions are again encoded; cf[set|get][o|i]speed now deal with only the
-	  encoded values.  If the encoded baud is set to BOTHER, then the values in the (non-
-	  standard) c_ispeed and c_ospeed baud values may be accessed directly.
-	* arch/arm/src/stm32/stm32_serial.c:  Add minimal termios support for the STM32
-	  (BOTHER style baud settings only).  Contributed by Mike Smith.
-	* configs/lpc4343-xplorer/src:  Clean up SPIFI-library based build to that it
-	  actually works.
-	* arch/arm/src/lpc43xx/lpc43_spifi.c:  Add support for verification to writes.
-	  Add debug option to dump buffers.  Several bugfixes... almost works.
-	* include/termios.h, lib/termios/*, and arch/arm/src/stm32/stm32_serial.c: :
-	  BOTHER is gone again.
-	* arch/arm/src/stm32/stm32_sdio.c and chip/stm32f20xx_pinmap.h:  STM32 F2 SDIO
-	  fixes from Gary Teravskis and Scott Rondestvedt.
-	* include/termios.h and lib/termios/*:  Replace cfsetispeed and cfsetospeed with
-	  cfsetspeed (with definitions for the input/outputs in termios.h).
-	* configs/stm32f4discovery/src and configs/stm32f4discovery/pm:  Add a power
-	  management configuration for the STM32F4Discovery and supporting logic.  This
-	  check-in also includes some fixes for the F4 RTC alarm logic.
-	* drivers/input/pga11x.c and include/nuttx/input/pga11x.h:  Add support for the
-	  TI PGA112/3/6/7 amplifier/multiplexer parts.
-	* configs/mirtoo/README.txt, nsh/defconfig, and nxffs/defconfig:  Add support
-	  for the PGA117 on the Mirtoo module.
-	* drivers/analog/pga11x.c and include/nuttx/analog/pga11x.h:  These belong in
-	  the analog subdirectories, not input.
-	* configs/compal_e99/src/ssd1783.c and /ssd1783.h:  Drivers for the SSD1783
-	  LCD found in the Motorola C155 telephone.  The driver is specific to the C155
-	  because it uses the uwire transport.  Contributed by Denis Carilki and
-	  Alan Carvalho de Assis.
-	* drivers/power/pm_changestate.c.  Correct a case where interrupts were not
-	  being re-enabled.  Found by Diego Sanchez.
-	* configs/mirtoo/nxffs/defconfig:  This Mirtoo NXFFS configuration now uses the
-	  open Pinguino toolchain by default.  This is necessary because the free C32
-	  toolchain does not support any optimization and the unoptimized NXFFS image
-	  hits the PIC32MX2 FLASH size (128K).  There is plenty of room to grow using
-	  the Pinguino toolchain with -O2 optimization.
-	* configs/mirtoo/src/up_adc.c.  This is just a stub for now, but this is
-	  where Mirtoo ADC logic will eventually need to go.
-	* arch/mips/src/pic32mx/pic32mx-gpio.c:  Now supports the PIC32MX1/2 ANSEL
-	  IOPORT register.
-	* lib/string/lib_memchr.c:  Add support for memchr() (contributed by Mike Smith)
-	* lib/string/lib_memccpy.c:  Add support for memccpy()
-	* arch/arm/src/lpc17xx/lpc17_serial.c:  Now supports ioctl commands to change
-	  the baud using tcsetattr() (contributed by Chris Taglia).
-	* arch/*/src/*_serial.c: Fix ioctl method return values.  These methods
-	  should return a negated errno value; they should not set the errno
-	  variable.
-	* sched/on_exit.c, sched/task_exithook.c, and include/nuttx/sched.c:  Add
-	  support for multiple registered on_exit() functions if CONFIG_SCHED_ONEXIT_MAX
-	  is defined.
-	* drivers/syslog/ramlog.c: Move the RAM SYSLOG device into drivers/syslog
-	  so that it will be in the same directory as some new SYSLOGing devices
-	  in the works.
-	* include/nuttx/syslog.h and drivers/syslog/ramlog.c:  The SYSLOG putc function
-	  now has a common name that is independent of the device that provides the
-	  SYSLOG.
-	* include/nuttx/syslog.h and drivers/syslog/syslog.c:  This is a new, generic
-	  SYSLOG device that can redirect debug output to any character device or file.
-	  So you can log debug output to a file or you can put the console on /dev/ttyS0
-	  and the debug output on /dev/ttyS1.
-	* arch/arm/src/lpc43xxl/lpc43_spifi.c: Correct an addressing error in the LPC43
-	  SPIFI MTD driver
-	* drivers/syslog/syslog.c and fs/fs_syslog.c:  Moved the generic syslog logic
-	  from drivers/syslog to fs/ where is belongs.  Especially after realizing that
-	  the syslog logic is going to have to some internal FS operations in order
-	  to realize a totally thread-independent SYSLOG interface.
-	* arch/arm/src/stm32/stm32*_rcc.c and .h:  If CONFIG_PM is defined, add a
-	  function called stm32_clockenable() that can be used by PM logic to re-start
-	  the PLL after re-awakening from deep sleep modes.
-	* fs/fs_foreachinode.c and fs/fs_foreachmountpoint.c:  Add logic to traverse
-	  inodes and mountpoints in the NuttX pseudo-file system.
-	* fs/fat/fs_fat32.c: Max. filename length reported by statfs() was wrong
-	  if FAT long file names were enabled.
-	* lib/stdio/lib_libvsprintf.c:  Fieldwidth and justification were not
-	  supported for the %s format.  As a result, %s, %12s, and %-12s all
-	  produced the same output.
-	* lib/stdio/lib_libdtoa.c:  Fix several issues with presenting floating
-	  point numbers (conversions are fine, but presentation was bad).  This
-	  is a critical bug fix if you use printf or sprintf to deal with floating
-	  point numbers.
-	* lib/stdio/lib_libdtoa.c and lib_libvsprintf.c:  Correct some floating
-	  point options.
-	* arch/arm/lpc43xx/lpc43_usb0dev.c:  Add framework for development of
-	  an USB0, device-side driver for the LPC43XX.  The initial check-in,
-	  however, is simply for the LPC31xx driver with name changes.  The
-	  LPC31xx has the same USB IP, but will require some additional initialization
-	  (and lots of testing) before it can be used with the LPC43xx.
-	* nuttx/Documentation/NuttShell.html:  Added a section covering ways to
-	  customize the behavior of NSH.
-	* arch/arm/src/stm32/chip/stm32f1*_pinmap.h: STM32 CAN TX/RX pins reversed;
-	  inconsistent conditional compilation.  Reported by Max Holtzberg.
-	* arch/arm/*/stm32:  Add support for STM32 F107 "Connectivity Line"
-	  Ethernet (contributed by Max Holtzberg).
-	* configs/olimex-stm32-p107:  Add board support for the Olimiex STM32-P107
-	   board (contributed by Max Holtzberg).
-	* arch/arm/src/stm32/stm32f2xx_dma.c, stm32f4xx_dma.c, stm32_serial.c, and
-	  stm32_spic.c:  DMA priority was getting zeroed by STM32 F2/F4 DMA drivers
-	  so that all DMAs ran at the lowest priority.
-	* configs/stm3240g-eval/include/board.h and configs/stm3220:  Drop SD card
-	  frequency from 24 to 16 MHz.  Apparently 24 MHz is too fast for the board.
-	  This (plus the change to the STM32 DMA (above) fixes SDIO DMA on the
-	  STM3240G-EVAL (and probably STM3220G-EVAL -- untested).
-	* arch/arm/src/stm32/stm32f2xx_dma.c and stm32f4xx_dma.c: Backed out the
-	  DMA priority change just above.  The reduced SD card frequency was
-	  necessary and sufficient to resolve the problem.
-	* drivers/serial/serial.c:  open, read, write, and poll methods may now
-	  abort return EINTR (or a short transfer size) if a signal is received
-	  while waiting to receive or send serial data.  This behavior is required
-	  by POSIX.
-	* include/sys/types.h:  Define NULL to be (0) if __cplusplus is defined.
-	  (contributed by Mike Smith)
-	* include/ctype.h: Remove a stray semi-colon in a definitions (Thanks
-	  Mike Smith).
-	* configs/.../Make.defs.  Fix C++ include path set-up in Make.defs file
-	  for all 8-bit AVR platforms (Thanks Richard Cochran).
-	* lib/stdio/lib_*stream.c:  Revised to handle new error return values from
-	  serial.c.
-	* arch/arm/src/stm32/stm32_spi.c:  SPI driver can now service re-
-	  initialization (Mike Smith).
-	* tools/mkconfig.c:  If CONFIG_DRAM_END is not specified, this tool
-	  will provide default definition of (CONFIG_DRAM_START + CONFIG_DRAM_SIZE)
-	* arch/arm/src/stm32/stm32_otgfshost.c:  Renamed from stm32_usbhost.c.
-	  This is nearly code complete and, with any luck, will be available
-	  in NuttX-6.21.
-	* configs/*/defconfig:  Update all defconfig files to remove syntax
-	  that is incompatible with the mconf configuration tool.
-	* arch/arm/src/stm32/stm32_otgfshost.c:  This driver now appears to be
-	  functional (although more testing is necessary).
-
-6.22 2012-09-29 Gregory Nutt <gnutt@nuttx.org>
-
-	* include/semaphore.h, sched/sem_holders.c, and lib/semaphore/sem_init.c:
-	  Fix some strange (and probably wrong) list handling when
-	  CONFIG_PRIORITY_INHERITANCE and CONFIG_SEM_PREALLOCHOLDERS are defined.
-	  This list handling was probably causing errors reported by Mike Smith
-	* sched/sched_waitpid.c: Fix a possible issue with logic logic that
-	  should be brought into a critical section (suggested by Mike Smith)
-	* sched/sched_setuptaskfiles.c: Should be 'struct socket' not
-	  'struct sockets'.  How did this compile before? (found by Kate)
-	* syscall/syscall.csv:  Fix prototype for usleep() and prctl() (also
-	  from Kate).
-	* arch/arm/src/lpc17xx/lpc17_ethernet.c:  Conditionally elide setting PHY
-	  speed/duplex.  This does not work for certain PHYs.  Still some unresolved
-	  issues (also from Kate).
-	* tools/Config.mk, Makefile, configs/*/Make.defs:  Add a new Makefile
-	  fragment to de-quote certain strings from the Kconfig logic that
-	  need to be used at path segments (Richard Cochran).
-	* arch/arm/src/stm32/stm32_usbotghost.c:  The STM32 USB host driver only
-	  works with debug turned on.  The problem appears to be that with debug
-	  OFF, there are more NAKs occurring in more places than before and this
-	  reveals a variety of errors.  This check in improves NAK robustness
-	  for control transfers but does not resolve all of the issues.
-	* configs/stm3220g-eval/*/defconfig:  Calibrated delay loop.  It had
-	  never been calibrated was way off.
-	* sched/sem_holder.c: Add logic to handler some priority inheritance
-	  cases when sem_post() is called from an interrupt handler.  The
-	  logic is clearly wrong, but it is not known if this is the
-	  cause of any known bugs.
-	* lib/stdio/lib_perror():  Add perror().  Contributed by Kate.
-	* lib/string/lib_strerror():  Add option CONFIG_LIBC_STRERROR that
-	  is now required to enabled strerror().  Add an option
-	  CONFIG_LIBC_STRERROR_SHORT that can be used to output shortened
-	  strings by strerror().
-	* arch/arm/src/stm32/stm32_usbotghost.c:  Finally... the USB OTG FS
-	  appears to handle NAKing correctly.
-	* configs/stm32f4discovery/*:  Added and verified support for USB OTG FS
-	  host on the STM32F4Discovery board.
-	* configs/*/defconfig: Remove configuration documentation from config
-	  files.  It is redundant, error-prone, and difficult to maintain.
-	  Configuration documentation is available in configs/README.txt for
-	  common configurations and in configs/*/README.txt for board and MCU-
-	  specific configurations.
-	* configs/stm3240g-eval: Add USB host support.
-	* sched/os_bring.c, configs/*/defconfig, tools/mkconfig.c, and others:  Added
-	  configuration variable CONFIG_USER_ENTRYPOINT that may be used to change
-	  the default entry from user_start to some other symbol.  Contributed by
-	  Kate. NOTE: This change does introduce a minor backward incompatibility.
-	  For example, if your application uses NSH as its start-up program, then your
-	  build will now fail because it will be unable to find "user_start".  The fix
-	  for this link failure is to add the following to your configuration file:
-	  CONFIG_USER_ENTRYPOINT="nsh_main".
-	* libs/stdio/lib_libfread.c and lib_*flush*.c:  Correct a couple of
-	  error cases where the lib semaphore was not be released on error
-	  exits (thanks Ronen Vainish).  Also, improved some error reporting:
-	  the generic ERROR was being used instead of the specific errno
-	  value; the errno variable was not always set correctly.
-	* tools/mkfsdata.pl: The uIP web server CGI image making perl script was
-	  moved from apps/netutils/webserver/makefsdata to nuttx/tools/mkfsdata.pl
-	  (Part of a larger change submitted by Max Holtzberg).
-	* configs/stm3240g-eval/script/ld.script:  All of the identical ld.script
-	  files for the STM3240G-EVAL were replaced by one version in this directory.
-	* configs/stm3240g-eval/webserver:  Configuration submitted by Max Holtzberg
-	  for testing the changes to the uIP web server (see apps/ChangeLog.txt).
-	* lib/stdio/lib_perror.c:  Remove CONFIG_LIBC_PERROR_DEVNAME.  What was I
-	  thinking?  Arbitrary streams cannot be shared by different tasks.
-	* tools/mksyscall.c, csvparser.c, and csvparser.h: Separate CSV parsing
-	  logic from mksyscall.c into files where it can be shared.
-	* tools/mksymtab.c:  Add a tool that can be used to convert a CSV file
-	  into a NuttX-style symbol table.
-	* sched/work_cancel.c:  Fix a bad assertion (reported by Mike Smith)
-	* configs/stm3210e-eval/src/up_idle.c:  Correct some power management
-	  compilation errors (reported by Diego Sanchez).
-	* include/nuttx/wqueue.h, sched/work*, and others:  Added logic to support
-	  a second, lower priority work queue (CONFIG_SCHED_LPWORK).
-	* arch/arm/src/stm32/stm32_dma.c, chip/stm32*_memorymap.h:  FSMC SRAM is
-	  only 16-bits wide and the SDIO DMA must be set up differently.
-	* arch/arm/src/stm32/stm32_dma.c:  Back out the 16-bit DMA change. It
-	  is incorrect.
-	* configs/:  Make use of UART4/5 vs USART4/5 consistent in all places.
-	* Kconfig: Serial 2STOP setting must be integer 0/1, not a boolean.
-	* lib/misc/sendfile.c and include/sys/sendfile.h:  Add a Linux style
-	  sendfile() (non-standard!)
-	* Kconfig: Refactor serial settings (moved from chip to drivers/serial).
-	  AVR "teensy" now builds with Kconfig (contributed by Richard Cochran).
-	* Kconfig: Add configuration settings for the LPC17xx
-	* Kconfig: Add configuration settings for the LM3S (from Richard Cochran).
-	* Kconfig: Verify configuration settings for the STM32.  This includes
-	  changes in the way that the external SRAM is configured:  Define
-	  CONFIG_HEAP2_SIZE (decimal) instead of CONFIG_HEAP2_END (hex).
-	* tools/configure.sh:  Don't append the apps directory path setting
-	  if the correct setting is already in defined in the defconfig file.
-	* fs/fat/fs_utils.c:  Improperly constructed bool expression.  This
-	  would cause many unnecessary writes to FLASH (Thanks Ronen Vainish).
-	* Kconfig: Verify configuration settings for the LPC43xx.  This includes
-	  some corrections to configuration variable names and defconfig settings.
-	* Kconfig: Add and verify configuration settings for the LPC31xx.
-	* arch/arm/src/stm32/stm32_uart.h and stm32_serial.c:  Add logic to
-	  re-initialize the console UART as needed to enable DMA on the
-	  console UART (contributed by Mike Smith).
-	* net/recvfrom.c, net/Kconfig, include/nuttx/net/uipopt.h: Remove delay
-	  after receiving data.  That has historical reasons to be there (it
-	  was needed before read-ahead buffering was added), but kills performance.
-	  (Noted by Max Holtzberg).
-	* configs/shenzhou:  Add beginnings of a board configuration for the
-	  Shenzhou STM32107 board (see www.armjishu.com).  Very little is in
-	  place as of this initial check-in.
-	* QEMU: Fixes from Richard Cochran to build QEMU with Kconfig files.
-	* arch/*/src/Makefile:  Remove some old logic that was kicked off
-	  when CONFIG_BOOT_RUNFROMFLASH=y.  The old logic used to use
-	  objcopy to move sections.  Newer logic changes the load position
-	  of sections in the linker script.  As far as I can tell, there
-	  is nothing in the source tree now that depends on the old way of
-	  doing things (if I am wrong, they will need a change to the linker
-	  script).
-	* configs/fire-stm32v2:  Configuration for the M3 Wildfire board.  I
-	  don't know very much about this board other than is has an
-	  STM32F103VET6 chip, LCD, touchscreen, and ENC28J60 network.  Very
-	  little is in place on the initial check-in.
-	* configs/shenzhou: Coding for the Shenzhou board port is complete,
-	  but tested has been deferred until I get the right tools.
-	* arch/arc/include/stm32/chip.h and arch/arm/src/stm32/chip.h:
-	  Add support for the STM32F103VET6.
-	* fs/fs_fdopen.c: Bad check for failure to allocate memory.  (Noted
-	  by Ronen Vainish).
-	* drivers/mmcsd/mmcsd_sdio.c: If the MMC/SD driver were ever
-	  uninitialized then there would be a double release of memory
-	  (Noted by Ronen Vainish).
-	* fs/mmap/fs_rammap.c:  Fix logic error and errno check (contributed
-	  by Kate).
-	* arch/avr/src: Fixes from AVR32 build errors that have crept in
-	  over the time; incorporated Kconfig for AVR3 (Richard Cochran).
-	* fs/fat and include/nuttx/fs/fat.h: The FAT file system allocates
-	  memory for sector I/O buffers used to exchange data with the
-	  configured block driver.  In some contexts, the block driver may
-	  require DMA-capable memory.  If CONFIG_FAT_DMAMEMORY is defined,
-	  then the FAT FS will use platform-provided DMA memory allocators
-	  to allocate the block driver I/O buffers.
-	* CONFIG_NET_ENC28J60 renamed CONFIG_ENC28J60 to be consistent
-	  in all places.
-	* drivers/enc28j60.c, include/nuttx/net/enc28j60.h, and
-	  olimex-strp711/src/up_enc28j60.c:  No longer passes IRQ number
-	  as a parameter.  Instead now passes a call table to manage
-	  ENC28J60 GPIO interrupts.  That is because GPIO interrupts are
-	  handled in different ways by different MCUs and some do not
-	  support IRQ numbers for GPIO interrupts.
-	* mm/mm_gran* and include/nuttx/gran.h:  Add a simple granule-
-	  based allocator.  The intent of this allocator is to support
-	  simple allocation of DMA I/O buffers.  The initial check-in
-	  is code complete but untested (not event built into the
-	  mm/Makefile yet.
-	* configs/fire-stm32v2: The board port is basically functional.
-	  Not all features have been verified.  The ENC28J60 network
-	  is not yet functional.
-	* configs/stm3240g-eval/discover:  A configuration for testing
-	  the UDP discovery utility.  Contributed by Max Holtzberg.
-	* mm/README.txt:  Add a new README file.
-	* include/nuttx/usb/usb.h, arch/*/src/*usb.c, and arch/*/src/*otg*.c:
-	  Add hooks to use common, external DMA buffer allocation
-	  implementation.
-	* net/recvfrom.c: Don't block in recvfrom if (1) read-ahead buffering
-	  is enabled and (2) some data was obtained from read-ahead buffers.
-	  Blocking is a bad idea in that case because there is no timeout!
-	  (submitted by Max Holtzberg).
-	* configs/stm3240g-eval/xmlrpc: An example configuration for the
-	  Embeddable Lightweight XML-RPC Server at apps/examples/xmlrpc.
-	  See http://www.drdobbs.com/web-development/
-	  an-embeddable-lightweight-xml-rpc-server/184405364 for more info.
-	  Contributed by Max Holtzberg.
-	* configs/*/nxwm/defconfig and sched/task_exithook.c: Fixes for
-	  bugs that crept in during recent changes.  (Submitted by Max
-	  Holtzberg).
-	* arch/arm/include/armv7-m/irq.h:  Fix a critical bug in irqsave().
-	  It looks like sometimes the compile will re-order some instructions
-	  inapproapriately.  This end result is that interrupts will get
-	  stuck off.
-	* drivers/mtd/w25.c:  Beginning of a driver for the Windbond SPI
-	  FLASH family (W25x16, W25x32, and W25x64).  The initial check-in
-	  is basically just the SST25 driver with some name changes.
-	* arch/arm/include/armv7-m/irq.h and arch/arm/src/stm32/stm32_spi.c:
-	  Back out the last change in irq.h.  It is (most likely) fine the
-	  way it was.  The really interrupt related problem was in stm32_spi.c:
-	  When SPI3 is not enabled, then the irqrestore() falls in the
-	  else clause.
-	* include/nuttx/compiler.h and other files:  Moved always_inline
-	  and noinline __attributes__ here.  Also replaced all occurrences
-	  of explicit __atributes__ in other files with definitions from
-	  this header file.
-	* drivers/mtd/w25.c:  The Windbond SPI FLASH W25 FLASH driver is
-	  code complete (but still untested).
-	* arch/arm/src/stm32/stm32_i2c.c:  I2C improvements from Mike Smith.
-	  Unified configuration logic; dynamic timeout calculations;
-	  I2C reset logic to recover from locked devices on the bus.
-	* configs/*/*/Make.defs, tools/Config.mk, Makefile:  Refactor all
-	  common make definitions from the various Make.defs files into
-	  the common tools/Config.mk.  Add support for a verbosity options:
-	  Specify V=1 on the make command line in order to see the exact
-	  commands used in the build (Contributed by Richard Cochran).
-	* drivers/net/enc28j60.c:  The ENC28J60 Ethernet driver is
-	  now functional.
-	* configs/fire-stm32v2:  Add support or the fire-stm32v3 board as
-	  well (untested because I do not have a v3 board).
-	* lib/stdio/lib_sscanf.c:  Add %n pseudo-format (from Kate).
-	* lib/stdio/lib_sscanf.c:  There is an issue of handling input
-	  when (1) no fieldwidth is provided and (2) there is no space
-	  separating the input values.  No solutions is in place for this
-	  case now (either space or a fieldwidth must be provided).  But
-	  at least some of the bad logic that attempted to handle this
-	  case has been removed (noted by Kate).
-	* arch/arm/src/stm32/stm32_eth.c:  DMA buffer sizes must be an
-	  even multiple of 4, 8, or 16 bytes.
-	* arch/arm/src/stm32/stm32_idle.c:  Fixes STM32F107 DMA issues:
-	  We cannot go into sleep mode while Ethernet is actively DMAing.
-	* configs/shenzhou/src/up_ssd1289.c:  Add infrastructure to support
-	  SSD1289 LCD.  Initial checkin is just a clone of the
-	  STM32F4Discovery's FSMC-based LCD interface.  The Shenzhou
-	  will need a completely need bit-banging interface; this
-	  initial check-in is only for the framework.
-	* configs/shenzhou/src/up_ssd1289.c:  Bit-banging driver is
-	  code complete.
-	* configs/shenzhou/src/up_lcd.c:  Oops. Shenzhou LCD does not
-	  have an SSD1289 controller.  Its an ILI93xx.  Ported the
-	  STM3240G-EVAL ILI93xx driver to work on the Shenzhou board.
-	* configs/shenzhou/nxwm:  Added an NxWM configuration for the
-	  Shenzhou board.  This is untested on initial check-in.  It will
-	  be used to verify the Shenzhou LCD driver (and eventually the
-	  touchscreen driver).
-	* configs/shenzhou/src/up_touchscreen.c:  Add ADS7843E touchscreen
-	  support for the Shenzhou board.  The initial check-in is untested
-	  and basically a clone of the touchscreen support for the SAM-3U.
-	* tools/cfgparser.c: There are some NxWidget configuration
-	  settings that must be de-quoted.
-	* arch/arm/src/stm32/Kconfig: There is no SPI4.  Some platforms
-	  support SPI3 and some do not (still not clear).
-	* nuttx/configs/shenzhou: Various fixes to build new NxWM
-	  configuration.
-	* configs/shenzhou:  Oops.  The Shenzhou LCD is and SSD1289,
-	  not an ILI93xx.
-	* configs/shenzhou/src/up_ssd1289.c: The LCD is basically functional
-	  on the Shenzhou board.
-	* graphics/nxmu:  Correct some bad parameter checking that caused
-	  failures when DEBUG was enabled.
-	* arch/arm/src/armv7-m/nvic.h:  Add bit definitions for the AIRCR
-	  register.
-	* drivers/input/ads7843.c:  Need semaphore protection in logic
-	  that samples the position.
-	* drivers/lcd/ssd1289.c:  On some platforms we are unable to
-	  read the device ID -- reason unknown; workaround in place.
-	* drivers/input/ads7843.c:  Add thresholding options and an
-	  option to swap X and Y positions.  Fix some logic errors in
-	  the SPI locking/selecting logic.
-	* arch/arm/src/armv7-m/up_systemreset.c:  Add logic to reset
-	  the Cortex-Mx using the AIRCR register.  Contributed by Darcy
-	  Gong.
-	* arch/arm/src/stm32/up_eth.c:  Add logic specifically for the
-	  DM9161 PHY.  If the DM9161 failed to initialize, then use the
-	  up_sysemreset() logic to reset the MCU.  Contributed by Darcy
-	  Gong.
-	* arch/arm/src/stm32/stm32_gpio.c:  Add missing logic to set bit
-	  for SPI3 remap.  This fixes the XPT2046 touchscreen driver using
-	  drivers/input/ads7843.c
-	* configs/shenzhou/src/up_ssd1289.c:  Fix naming error in
-	  conditional compilation.
-	* configs/shenzhou/nxwm/defconfig:  Disable reading from the LCD.
-	  This does not work.  The hardware and the driver support the
-	  capability, but there is some bug that causes memory corruption.
-	  The work around for now:  Just disable reading from the LCD.
-	* drivers/lcd/ssd1289.c:  Add some logic to reduce the amount of
-	  output when CONFIG_DEBUG_LCD is enabled.
-	* configs/shenzhou/nxwm/defconfig:  Bug found and fixed... The
-	  original configuration had too much stuff turned on.  Reducing
-	  stack sizes, some features, and buffer sizes made the
-	  configuration reliable (Reading from the LCD is still disabled).
-	* net/uip/uip_icmpping.c:  Fix problem that prevented ping from
-	  going outside of local network.  Submitted by Darcy Gong
-
-6.23 2012-11-05 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32/stm32_rng.c, chip/stm32_rng.h, and other files:
-	  Implementation of /dev/random using the STM32 Random Number
-	  Generator (RNG).
-	* board.h file for shenzhou, fire-stm32v2, and olimex-stm32-p107:
-	  Add frequencies for HSE, HSI, LSE, and LSI.  These are needed
-	  by the STM32 watchdog driver.
-	* CONFIG_EXAMPLES_*: To make things consistent, changed all occurrences
-	  of CONFIG_EXAMPLE_* to CONFIG_EXAMPLES_*.
-	* drivers/mtd/w25.c and configs/*/src/up_w25.c:  Several fixes for the
-	  W25 SPI FLASH.
-	* configs/*/Make.defs:  All buildroot tools now use the extension
-	  xxx-nuttx-elf- vs. xxx-elf-
-	* configs/shenzhou/*/Make.defs:  Now uses the new buildroot 4.6.3
-	  EABI toolchain.
-	* lib/stdio/lib_libdtoa.c:  Another dtoa() fix from Mike Smith.
-	* configs/shenzhou/src/up_adc.c:  Add ADC support for the Shenzhou
-	  board (Darcy Gong).
-	* configs/shenzhou/thttpd:  Add a THTTPD configuration for the
-	  Shenzhou board (Darcy Gong).
-	* include/termios.h and lib/termios/libcf*speed.c: The non-standard,
-	  "hidden" c_speed cannot be type const or else static instantiations
-	  of termios will be required to initialize it (Mike Smith).
-	* drivers/input/max11802.c/h, and include/nuttx/input max11802.h:  Adds
-	  support for the Maxim MAX11802 touchscreen controller (contributed by
-	  Petteri Aimonen).
-	* graphics/nxtk/nxtk_events.c:  Missing implementation of the blocked
-	  method.  This is a critical bugfix for graphics support (contributed
-	  by Petteri Aimonen).
-	* drivers/usbdev/pl2303.c, drivers/usbdev/usbmsc.h, and
-	  include/nuttx/usb/cdcacm.h: USB_CONFIG_ATTR_SELFPOWER vs.
-	  USB_CONFIG_ATT_SELFPOWER (contributed by Petteri Aimonen).
-	* arch/arm/src/armv7-m/up_memcpy.S:  An optimized memcpy() function for
-	  the ARMv7-M family contributed by Mike Smith.
-	* lib/strings/lib_vikmemcpy.c:  As an option, the larger but faster
-	  implementation of memcpy from Daniel Vik is now available (this is
-	  from http://www.danielvik.com/2010/02/fast-memcpy-in-c.html).
-	* lib/strings/lib_memset.c: CONFIG_MEMSET_OPTSPEED will select a
-	  version of memset() optimized for speed.  By default, memset() is
-	  optimized for size.
-	* lib/strings/lib_memset.c: CONFIG_MEMSET_64BIT will perform 64-bit
-	  aligned memset() operations.
-	* arch/arm/src/stm32/stm32_adc.c:  Need to put the ADC back into the
-	  initial reset in the open/setup logic.  Opening the ADC driver works
-	  the first time, but not the second because the device is left in a
-	  powered down state on the last close.
-	* configs/olimex-lpc1766stck/scripts:  Replace all of the identical
-	  ld.script files with the common one in this directory.
-	* configs/stm3220g-eval/scripts:  Replace all of the identical
-	  ld.script files with the common one in this directory.
-	* configs/hymini-stm32v/scripts:  Replace all of the identical
-	  ld.script files with the common one in this directory.
-	* configs/lpcxpresso-lpc1768/scripts:  Replace all of the identical
-	  ld.script files with the common one in this directory.
-	* binfmt/elf.c, binfmt/libelf, include/elf.h, include/nuttx/elf.h: Add
-	  basic framework for loadable ELF module support.  The initial check-
-	  in is non-functional and is simply the framework for ELF support.
-	* include/nuttx/binfmt.h, nxflat.h, elf.h, and symtab.h:  Moved to
-	  include/nuttx/binfmt/.
-	* arch/sim/src/up_elf.c and arch/x86/src/common/up_elf.c:  Add
-	  for ELF modules.
-	* arch/arm/include/elf.h:  Added ARM ELF header file.
-	* include/elf32.h:  Renamed elf.h to elf32.h.
-	* configs/stm32f4discovery/ostest:  Converted to use the new
-	  Kconfig-based configuration system.
-	* configs/stm32f4discovery/elf and configs/stm32f4discovery/scripts/gnu-elf.ld
-	  Add a configuration for testing the ARM ELF loader.
-	* binfmt/libelf:  Can't use fstat(). NuttX does not yet support it.  Damn!
-	* binfmt/libelf:  The basic ELF module execution appears fully functional.
-	* configs/shenzhou/src/up_relays.c:  Add support for relays from the
-	  Shenzhou board.  Contributed by Darcy Gong.
-	* lib/fixedmath: Moved the old lib/math to lib/fixedmath to make room for
-	  the math library from the Rhombus OS
-	* lib/math: Now contains the math library from the Rhombus OS by Nick Johnson
-	  (submitted by Darcy Gong).
-	* include/float.h:  Add a first cut at the float.h header file.  This
-	  really should be an architecture/toolchain-specific header file.  It
-	  is only used if CONFIG_ARCH_FLOAT_H is defined.
-	* lib/math: Files now conform to coding standards.  Separated float,
-	  double, and long double versions of code into separate files so that
-	  they don't draw in so much un-necessary code when doing a dumb link.
-	* binfmt/libelf:  The ELF loader is working correctly with C++ static
-	  constructors and destructors and all.
-	* Documentation/NuttXBinfmt.html:  Add documentation of the binary loader.
-	* configs/sim/ostest:  Converted to use the mconf configuration tool.
-	* configs/sim/cxxtest:  New test that will be used to verify the uClibc++
-	  port (eventually).
-	* include/nuttx/fs/fs.h, lib/stdio/lib_libfread.c, lib_ferror.c,
-	  lib_feof.c, and lib_clearerr.c:  Add support for ferror(), feof(),
-	  and clearerror().  ferror() support is bogus at the moment (it
-	  is equivalent to !feof()); the others should be good.
-	* configs/stm32f4discovery/include/board.h:  Correct timer 2-7
-	  base frequency (provided by Freddie Chopin).
-	* include/nuttx/sched.h, sched/atexit.c, and sched/task_deletehook.c:
-	  If both atexit() and on_exit() are enabled, then implement atexit()
-	  as just a special caseof on_exit().  This assumes that the ABI can
-	  handle receipt of more call parameters than the receiving function
-	  expects.  That is usually the case if parameters are passed in
-	  registers.
-	* libxx/libxx_cxa_atexit():  Implements __cxa_atexit()
-	* configs/stm32f4discovery/cxxtest:  New test that will be used to
-	  verify the uClibc++ port (eventually).  The sim platform turned not
-	  to be a good platform for testing uClibc++.  The sim example will not
-	  run because the simulator will attempt to execute the static
-	  constructors before main() starts. BUT... NuttX is not initialized
-	  and this results in a crash.  On the STM324Discovery, I will have
-	  better control over when the static constructors run.
-	* RGMP 4.0 updated from Qiany Yu.
-	* configs/*/Make.defs and configs/*/ld.script:  Massive clean-up
-	  and standardization of linker scripts from Freddie Chopin.
-	* net/netdev_ioctl.c:  Add interface state flags and ioctl calls
-	  to bring network interfaces up and down (from Darcy Gong).
-	* config/stm32f4discovery: Enable C++ exceptions.  Now the entire
-	  apps/examples/cxxtest works -- meaning that the uClibc++ is
-	  complete and verified for the STM32 platform.
-
-6.24 2012-12-20 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32:  Support for STM32F100 high density chips
-	  added by Freddie Chopin.
-	* configs/stm32f100_generic:  Support for generic STM32F100RC board
-	  contributed by Freddie Chopin.
-	* arch/arm/src/stm32_otgfsdev.c:  Partial fix from Petteri Aimonen.
-	* drivers/lcd/ug-2864ambag01.c and include/nuttx/lcd/ug_2864ambag01.h:
-	  LCD driver for the Univision OLED of the same name (untested on
-	  initial check-in).
-	* configs/stm32f4discovery/nxlines:  Configure to use mconf/Kconfig
-	  tool.
-	* configs/stm32f4discovery/src/up_ug2864ambag01.c:  Board-specific
-	  initialization for UG-2864AMBAG01 OLED connected to STM32F4Disovery.
-	* libxx/libxx_stdthrow.cxx:  Exception stubs from Petteri Aimonen.
-	* configs/stm32f4discovery/src/up_ug2864ambag01.c: Driver has been
-	  verified on the STM32F4Discovery platform.  Some tuning of the
-	  configuration could improve the presentation.  Lower resolution displays
-	  are also more subject to the "fat, flat line bug" that I need to fix
-	  someday.  See http://www.nuttx.org/doku.php?id=wiki:graphics:nxgraphics
-	  for a description of the fat, flat line bug.
-	* libc:  Renamed nuttx/lib to nuttx/libc to make space for a true lib/
-	  directory that will be forthcoming.  Also rename libraries:  liblib.a -> libc.a,
-	  libulib.a -> libuc.a, libklib.a -> libkc.a, liblibxx.a ->libcxx.a.
-	  (I will probably, eventually rename libxx to libcxx for consistency)
-	* Makefile, lib/: A new, empty directory that will hold generated libraries.
-	  This simplifies the library patch calculations and lets me get rid of some
-	  bash logic.  The change is functional, but only partially complete;
-	  additional logic is needed in the arch/*/src/Makefile's as well.  Right
-	  now that logic generate multiple library paths, all pointing to the lib/
-	  directory.
-	* arch/*/src/Makefile:  Now uses only the libraries in lib/
-	  Replace bash fragments that test for board/Makefile.
-	* Makefile.win:  The beginnings of a Windows-native build.  This is just
-	  the beginning and not yet ready for prime time use.
-	* configs/stm32f4discovery/winbuild:  This is a version of the standard
-	  NuttX OS test, but configured to build natively on Windows.  Its only
-	  real purpose is to very the native Windows build logic.
-	* tools/mkdeps.bat and tools/mkdeps.c:  mkdeps.bat is a failed attempt
-	  to leverage mkdeps.sh to CMD.exe.  It fails because there are certain
-	  critical CFLAG values that cannot be passed on the CMD.exe command line
-	  (like '=').  mkdeps.c is a work in progress that will, hopefully,
-	  replace both mkdeps.sh and mkdeps.bat.
-	* tools/Config.mk:  Centralize the definition of the script that will be
-	  used to generated header file include paths for the compiler.  This
-	  needs to be centralized in order to support the Windows native build.
-	* tools/incdir.bat:  A replacement for tools/incdir.sh for use with the
-	  the Windows native build.
-	* Makefile.unix:  The existing top-level Makefile has been renamed
-	  Makefile.unix.
-	* Makefile:  This is a new top-level Makefile that just includes
-	  either Makefile.unix or Makefile.win
-	* configs/stm3240g-eval/src:  Qencoder fixes from Ryan Sundberg.
-	* arch/arm/src/stm32/stm32_qencoder.c: TIM3 bug fix from Ryan Sundberg.
-	* tools/mkromfsimg.sh: Correct typo in an error message (Ryan Sundberg)
-	* arch/*/src/Makefile:  Remove tftboot install and creation of System.map
-	  for Windows native build.  The first is a necessary change, the second
-	  just needs re-implemented.
-	* configs/mirtoo: Update Mirtoo pin definitions for Release 2.  Provided
-	  by Konstantin Dimitrov.
-	* Fixed an uninitialized variable in the file system that can cause
-	  assertions if DEBUG on (contributed by Lorenz Meier).
-	* Config.mk:  Defined DELIM to be either / or \, depending upon
-	  CONFIG_WINDOWS_NATIVE.  This will allow me to eliminate a lot of
-	  conditional logic elsewhere.
-	* nuttx/graphics: One a mouse button is pressed, continue to report all
-	  mouse button events to the first window that received the initial
-	  button down event, even if the mouse attempts to drag outside the
-	  window. From Petteri Aimonen.
-	* nuttx/graphics/nxmu/nx_block.c:  One more fix to the NX block message
-	  logic from Petteri Aimonen.
-	* include/nuttx/wqueue.h: Some basic definitions to support a user-
-	  space work queue (someday in the future).
-	* graphics/nxmu:  Add semaphores so buffers messages that send buffers
-	  will block until the buffer data has been acted upon.
-	* graphics/nxmw:  Extended the blocked messages to cover mouse movement
-	  and redraw events.  These will also cause problems if sent to a window
-	  while it is closing.
-	* arch/several:  Change UARTs are enabled for i.MX, LM3S, eZ80, and M16C to
-	  match how they are enabled for other architectures.
-	* configs/ez80f910200kitg:  Convert to use mconf configuration.
-	* sched/pause.c:  Implements the POSIX pause() function.
-	* eZ80: Lots of changes to eZ80 configurations and build logic as I
-	  struggle to get a clean Windows build (still not working).
-	* configs/cloudctrl:   Darcy Gong's CloudController board.  This is a
-	  small network relay development board. Based on the Shenzhou IV development
-	  board design.  It is based on the STM32F107VC MCU.
-	* arch/arm/src/stm32_serial.c and stm32_lowputc.c:  Added optional RS-485
-	  direction bit control. From Freddie Chopin.
-	* Lots of build files:  ARMv7-M and MIPS32 Make.defs now include a common
-	  Toolchain.defs file that can be used to manage toolchains in a more
-	  configurable way.  Contributed by Mike Smith
-	* configs/stm32f4discovery/winbuild and configs/cloudctrl:  Adapted to use
-	  Mike's Toolchain.defs.
-	* tools/configure.sh:  Adapted to handle paths and setenv.bat files correctly
-	  for native Windows builds.
-	* More of build files:  AVR and AVR32 Make.defs now include a common
-	  Toolchain.defs file that can be used to manage toolchains in a more
-	  configurable way.  Contributed by Mike Smith
-	* tools/incdir.sh and incdir.bat: Add -s option to generate system header
-	  file paths.
-	* nuttx/arch/arm/src/arm/Toolchain.defs: Add support for more ARM toolchains
-	  (from Mike Smith).
-	* arch/arm/src/stm32/stm32f40xxx_rcc.c:  Enabled FLASH prefetch (from Petteri
-	  Aimonen).
-	* graphics/nxtk/nxtk_filltrapwindow.c:  Correct an offset problem (from
-	  Peterri Aimonen).
-	* graphics/nxglib/nxglib_splitline.c:  Fix error in drawing of near horizontal
-	  lines (from Peterri Aimonen).
-	* sched/task_exithook.c:  Missing right bracket with certain conditional
-	  compilation (thanks James Goppert).
-	* arch/arm/srch/stm32/stm32_otgfshost.c:  Replace timeout handling; use
-	  system tick instead of frame counter.  The frame counter gets reset to
-	  zero at 0x3fff making it error prone.
-	* arch/arm/src/stm32/stm32f20xx_rcc.c and stm32f40xx_rcc.c: Added option
-	  CONFIG_STM32_FLASH_PREFETCH.  FLASH prefetch will now only be enabled
-	  if this option is selected.
-	* configs/ez80f910200zco/ostest:  Now uses Kconfig/mconf configuration
-	  tool. Updated to build in native Windows environment.  Other ez80f910200zco
-	  build scripts also updated.
-	* configs/z8f64200100kit/ostest: Update to same level as eZ80 configurations.
-	* nuttx/configs/z8f64200100kit/scripts/setenv.bat: Add support for native
-	  Windows build.
-	* nuttx/arch/arm/src/lpc17xx/lpc17_i2c.c: Resources not being released when
-	  I2C is uninitialized.
-	* cloudctrl/src/up_chipid.c and shenzhou/src/up_chipid.c:  Add functions to
-	  get chip ID.  Contributed by Darcy Gong.  These should not be board-dependent,
-	  but should be in arch/arm/src/stm32 where they can be used from any board.
-	* sched/work_thread.c: Fix backward conditional compilation.  This might
-	  has caused a memory leak.  From Freddie Chopin.
-	* configs/<many>/Make.defs:  Fix typo -wstrict-prototypes should be
-	  -Wstrict-prototypes (From Denis Carilki).
-	* arch/arm/src/calapyso/calypso_keypad.c:  Add Calypso keypad driver.  From
-	  Denis Carilki.
-	* z8encore000zco/ostest and z8f64200100kit/ostest:  Converted to use Kconfig/
-	  mconf configuration tool.
-	* arch/arm/src/armv7-m/up_exception.S: missing curly braces for push/pop
-	  From Freddie Chopin.
-	* z8encore000zco/ostest and z8f64200100kit/ostest:  Can now be modified to
-	  support the Windows native builds (see corresponding README.txt files).
-	* configs/z16f2800100zcog - All configurations updated to use the ZDS-II
-	  5.0.1 toolchain.
-	* configs/z16f2800100zcog - All configurations updated to use Kconfig/mconf
-	  configuration tools.
-	* configs/z16f2800100zcog/ostest - Now supports a native Windows build
-	  (other ZNEO configs may also support the native build, but this has not
-	  been verfiied).
-	* include/nuttx/input/keypad.h, arch/arm/src/calypso/calypso_keypad.c, and
-	  configs/compal_e99/nsh_highram: First cut at a standard keypad interface
-	  definition.  Contributed by Denis Carikli.
-	* libc/stdlib/lib_rand.c:  Always add one to result congruential generators
-	  to avoid the value zero.  Suggested by Freddie Chopin.
-	* tools/b16.c:  Fixed precision math conversion utility.
-	* graphics/nxglib/nxglib_splitline.c:  Fix the "fat, flat line bug"
-	* arch/z80/src/*/Toolchain.defs:  Add dummy Toolchain.defs files for the
-	  z80 family.
-	* configs/z80sim/ostest:  Converted to build with the Kconfig/mconf tool.
-	  Current configuration failed to build for me (Ubuntu 12.10, SDCC 3.2.0
-	  pre-built for Linux) due to a glibc memory corruptionerror in SDCC.
-	* configs/z80sim/ostest: Default is now the Windows native build.  See
-	  configs/z80sim/README.txt for instructions to convert back to a Linux or
-	  or Cygwin build.
-	* arch/z80/src/Makefile.sdccw:  Renamed makefiles with extensions zdiil,
-	  zdiiw, sdccl, and sdccw for the ZDS-II vs SDCC compilers and for the
-	  POSIX vs Windows native builds.
-	* nuttx/drivers/mtd/ftl.c:  Fix for the flash translation layer. Short
-	  unaligned writes were buggy.  From Petteri Aimonen.
-	* nuttx/libc/math/lib_round*.c:  Add rounding functions to the math
-	  library.  Contributed by Petteri Aimonen.
-	* include/cxx/cstdlib:  Add stroul().  From Petteri Aimonen.
-	* arch/*/include/limits.h:  Change signed minimum values from, for example,
-	  (-128) to (-127 - 1) to avoid overflows under certain conditions.  From
-	  Peterri Aimonen.
-	* graphics/nxtk/nxtk_subwindowmove.c: Previously it was very difficult to
-	  do e.g. "scroll by dx, dy". When given the full window area, nxtk_subwindowmove
-	  would clip the offset always to 0,0. It makes more sense for it to clip the
-	  source area and not modify the offset.  From Petteri Aimonen.
-	* graphics/nxtk/nxtk_getwindow.c: Clipping would change the offset of returned
-	  data, and caller has no way to know what the new offset would be. This messes
-	  up font drawing when the text is partially out of window, e.g. when scrolling.
-	  Also from Petteri Aimonen.
-	* include/stdbool.h: Can now be disabled for C++ files if CONFIG_C99_BOOL8 is
-	  defined.  CONFIG_C99_BOOL8 indicates (1) that the sizeof(_Bool) is one in both
-	  C and C++, and (2) the C compiler is C99 and supports the _Bool intrinsic
-	  type. Requested by Freddie Chopin.
-	* include/stdlib/lib_rand.c:  Various additional changes so that the integer
-	  value zero can be returned.  Requested by Freddie Chopin.
-	* arch/z80/src/Makefile.sdcc*, z80/up_mem.h:  Redesign Z80 build so that it
-	  no longer depends on Bash scripts.
-	* configs/z80sim/nsh and pashello:  Converted to (1) use the kconfig-frontends
-	  configuration tool, and (2) to build natively under Windows.  The NSH
-	  configuration is verified; the pashello configuration needs a more TLC.
-	* tools/copydir.sh:  Rename tools/winlink.sh to tools/copydir.sh
-	* tools/link.bat, unlink.bat, and copydir.bat:  Add Windows counterparts
-	  to the link.sh, unlink.sh, and copydir.sh Bash scripts.
-	* configs/z80sim/pashello:  Now builds correctly.
-	* configs/xtrs/ostest, nsh, and pashello:  Converted to (1) use the kconfig-
-	  frontends configuration tool, and (2) to build natively under Windows.
-	* drivers/serial/Kconfig and sched/Kconfig:  Two names for same configuration:
-	  CONFIG_LOWLEVEL_CONSOLE is bogus and CONFIG_DEV_LOWCONSOLE is in the wrong
-	  Kconfig file.  Moved to drivers/serial/Kconfig replacing CONFIG_LOWLEVEL_CONSOLE.
-	* arch/z80/include/z180:  Add header files for z180 chips.  Initial versions
-	  are just clones of z80 header files.
-	* arch/z80/src/z180:  Add source files for z180 chips.  Initial versions
-	  are just clones of z80 source files.
-	* include/nuttx/arch.h:  Add address environment control interfaces (for use
-	  with CPUs the provide MCUs and support process-like address environments).
-	* arch/z80/src/z180/z180_mmu.*:  Add MMU support for z180 tasks.
-	* configs/p112:  Add very basic board support and an examples/ostest
-	  configuration for the venerable P112 board.
-	* sched/os_bringup.c: If CONFIG_PATH_INITIAL is defined, then the initial
-	  environment of the task started by os_bringup() will have the PATH
-	  environment variable defined to be that string.
-	* binfmt/binfmt_exepath.c:  If CONFIG_BINFMT_EXEPATH is defined, then this
-	  file will be built.  It contains logic to search for regular files at
-	  the absolutes paths found in the current PATH environment variable
-	  setting.  This is untested and not yet hooked into the binfmt exec()
-	  logic on initial check-in
-	* binfmt/binfmt_loadmodule.c: load_module() will now traverse the PATH
-	  variable to locate files from their relative path.
-	* include/nuttx/arch.h and arch/z80/src/z180/z180_mmu.c:  Restructure the
-	  address environment interfaces so that they will better integrate with
-	  binfmt/.
-	* binfmt/libelf/*, binfmt/libnxflat/* and other files:  Integrate the
-	  address environment interfaces.  If CONFIG_ADDRENV=y, then binfmt/
-	  will now create an address environment for new tasks (instead of
-	  just malloc'ing the task memory).
-	* configs/stm32f4discovery/elf:  Enable support/test of the PATH
-	  to find executables using a relative path.
-
-6.25 2013-02-01 Gregory Nutt <gnutt@nuttx.org>
-
-	* graphics/: Adds 5x8 monospace font. This tiny font is useful for graph
-	  labels and for small bitmapped display.  Contributed by Petteri
-	  Aimonen.
-	* configs/stm3220g-eval/nxwm:  Converted to use the kconfig-frontends
-	  configuration tool.
-	* configs/sim/nxwm:  Converted to use the kconfig-frontends configuration
-	  tool.
-	* include/pthread.h:  In sys/prctl.h because it is needed by
-	  pthread_[set|get]name_np()
-	* tools/kconfig.bat:  Kludge to run kconfig-frontends from a DOS shell.
-	* sched/sig_timedwait.c:  Should always move the time up to the next
-	  largest number of system ticks.  The logic was rounding.  Noted by
-	  Petteri Aimonen.
-	* arch/arm/src/up_head.S:  Fix backward conditional compilation.  NOTE
-	  there is a issue of ARM9 systems with low vectors and large memories
-	  that will have to be addressed in the future.
-	* libc/misc/lib_kbdencode.c and lib_kbddecode.c:  Add logic to marshal
-	  and serialize speical keyboard commands intermixed with normal ASCII
-	  data (not yet hooked into anything).
-	* drivers/usbhost/usbhost_hidkbd.c:  If CONFIG_HIDKBD_ENCODED is
-	  defined, this driver will now use libc/misc/lib_kbdencode.c to
-	  encode special function keys.
-	* configs/olimex-lpc1766stk/hidkbd:  This configuration has been
-	  converted to use the kconfig-frontends configuration tool.
-	* drivers/lcd/ug-2864hsweg01.c and include/nuttx/lcd/ug-2864hsweg01.h:
-	  Driver for UG-2864HSWEG01 OLED contributed by Darcy Gong.
-	* configs/stm32f4discovery/src/up_ug2864hsweg01.c: Support for the
-	  UG-2864HSWEG01 OLED for the STM32F4Discovery board.
-	* drivers/usbhost/usbhost_hidkbd.c:  Correct a logic error in how
-	  tasks waiting for read data are awakened.
-	* libc/misc/lib_kbdencode.c and lib_kbddecode.c:  Now handles keypress
-	  events too.  However, the USB HID keyboard driver has not yet been
-	  updated to detect key release events.  That is kind of tricky in
-	  the USB HID keyboard report data.
-	* configs/mcu123-214x/nsh:  Converted to use the kconfig-frontends
-	  configuration tool.
-	* configs/zp214xpa:  Add basic support for the The0.net ZP213x/4xPA
-	  board (with the LPC2148 and the UG_2864AMBAG01).
-	* configs/sim/nxlines:  Add an nxlines configuration for the
-	  simulator.
-	* configs/zp214xpa/nxlines:  Add an nxlines configuration for the
-	  ZP213x/4xPA (with the LPC2148 and the UG_2864AMBAG01).  Working
-	  as of 2012-12-30.
-	* configs/olimex-lpc1766stk/wlan:  Remove non-functional
-	  configuration.
-	* configs/stm32f4discovery/src and nuttx/drivers/lcd/ug-2864hsweg01.c:
-	  Updates and corrections for the UG-2864HSWEG01 from Darcy Gong.
-	* configs/lm326965-ek:  All configurations converted to use the
-	  kconfig-frontends configuration tool.
-	* configs/Kconfig: NSH_MMCSDSPIPORTNO should depend on MMCSD_SPI,
-	  not just SPI (from Jose Pablo Carballo).
-	* arch/arm/src/arm/Kconfig and armv7m/Kconfig:  Add an option for
-	  buildroot toolchains:  They may be EABI or OABI.
-	* include/nuttx/progmem and arch/arm/src/stm32/stm32_flash.c:
-	  Fix a counting bug plus change interface to use either relative
-	  or absolute FLASH addressing (from Freddie Chopin).
-	* libc/misc/Make.defs:  Fix error in conditional for KBD CODEC.
-	* libc/Kconfig and configs/*/defconfig (several):  The default
-	  setting should be CONFIG_LIB_KBDCODEC=n
-	* tools/configure.c:  configure.c can be used to build a work-alike
-	  program as a replacement for configure.sh.  This work-alike
-	  program would be used in environments that do not support Bash
-	  scripting (such as the Windows native environment).
-	* tools/configure.bat: configure.bat is a small Windows batch
-	  file that can be used as a replacement for configure.sh in a
-	  Windows native environment.  configure.bat is actually just a
-	  thin layer that executes configure.exe if it is available. If
-	  configure.exe is not available, then configure.bat will attempt
-	  to build it first.
-	* arch/arm/src/lpc17xx/lpc17_syscon.h:  Correct some typos in bit
-	  definitions (from Rommel Marcelo).
-	* libc/string/lib_strndup.c: strndup() should use strnlen(), not
-	  strlen(), to determine the size of the string.
-	* sched/os_bringup.c:  Remove support for CONFIG_BUILTIN_APP_START.
-	  This is not really a useful feature and creates a violation of the
-	  OS layered architecture.
-	* include/unistd.h, arch/arch/src/*:  Implement a simple vfork().
-	  On initial checkin, this API is available only for ARM platforms.
-	* binfmt/binfmt_exec.c: exec() now sets the priority of the new task
-	  to the same priority as the current task (instead of the arbitrary
-	  value of 50).
-	* libc/unisted/lib_execv.c and lib_execl.c:  New, somewhat flawed,
-	  implementations of execv() and execl().
-	* tools/cfgdefine.c:  Strips quotes from CONFIG_EXECFUNCS_SYMTAB
-	  value.
-	* arch/arm/include/lm3s/chip.h:  Move chip definitions into
-	  public include area for compatibility with other architectures.
-	* arch/arm/src/lm3s/chip:  Move register definition header files
-	  into a new chip/ sub-directory.
-	* arch/arm/src/lm3s/lm3s_internal.h:  Broke up into several
-	  smaller header files.
-	* arch/arm/src/lm:  Rename the arch/arm/src/lm3s directory to
-	  arch/arm/src/lm so that is can support other members of the
-	  Stellaris family.
-	* libc/spawn:  Add file action interfaces needed by posix_spawn().
-	* sched/clock_time2ticks.c:  Another case where time was being
-	  rounded down instead of up (from Mike Smith).
-	* libc/spawn:  Implementation of posix_spawn() is complete but
-	  untested and undocumented.
-	* drivers/usbdev/pl2303.c:  Fix typols in the PL2303 driver
-	  (from Max Holtzberg).
-	* configs/stm32f4discovery/posix_spawn:  Added a configuration
-	  that can be used for testing posix_spawn().
-	* arch/arm/src/stm32: Bring F1 support for general DMA and serial
-	  DMA in paricular up to parity with F2/F4 (from Mike Smith).
-	* libc/stdio/lib_libfread.c:  Correct some error handling when
-	  lib_fread() was passed a bad stream.  Needed to move the
-	  releasing of a semaphore inside of some conditional logic
-	  (cosmetic).
-	* include/nuttx/sched.h, sched/task_setup.c, and sched/task_exithook.c:
-	  Add support for remembering the parent task and sending
-	  SIGCHLD to the parent when the task exists.
-	* sched/task_exithook.c:  Fixed a *critical* bug.  Here is
-	  the scenario: (1) sched_lock() is called increments the lockcount
-	  on the current TCB (i.e., the one at the head of the ready to run
-	  list), (2) sched_mergepending is called which may change the task
-	  at the head of the ready-to-run list, then (3) sched_unlock() is called
-	  which decrements the lockcount on the wrong TCB.  The failure case
-	  that I saw was that pre-emption got disabled in the IDLE thread,
-	  locking up the whole system.
-	* sched/sched_waitpid.c:  Use SIGCHLD instead of a semaphore.  This
-	  is a much more spec-compliant implementation.  However, there are
-	  some issues with overrunning signals because NuttX does not support
-	  queueing of signals (POSIX does not require it).  I think it may
-	  need to.
-	* sched/sched_waitid.c and sched_wait.c:  Add support for waitid()
-	  and wait().  See issues with waitpid() above.
-	* include/nuttx/fs/fs.h and fs/fs_files.c:  Add a dup() method to
-	  the struct mountpt_operations.  When dup'ing a file that resides
-	  on a mounted volume, let the file system's dup() method do the
-	  work.
-	* fs/romfs/fs_romfs.c: Implemented the dup() method for the ROMFS
-	  file system.
-	* fs/fat/fs_fat32.c, fs/nxffs/nxffs_initialize, and
-	  fs/nfs/nfs_vfsops.c:  Add hooks for dup() method (not yet
-	  implemented).
-	* fs/romfs:  Remove the rf_open flag.  It looks good, but actually
-	  does nothing.
-	* fs/fat:  Remove the ff_open flag.  Same story as for the ROMFS
-	  rf_open flag.
-	* fs/fat/fs_fat32.c, fs/nxffs/nxffs_initialize, and
-	  fs/nfs/nfs_vfsops.c:  Completed implementation of the dup() methods.
-	  There is still no good test available.
-	* sched/sig_timedwait.c:  sigtimedwait() would return a bad signal
-	  number if the signal was already pending when the function was
-	  called.
-	* configs/ubw32/scripts:  All common linker scripts moved to this
-	  scripts sub-directory
-	* configs/ubw32/ostest:  Configuration configured to use the
-	  kconfig-frontends tools.
-	* arch/mips/src/mips32/up_vfork.c, up_vfork.h, and vfork.S:
-	  Implement vfork() for MIPS32 (no floating point support)
-	* configs/ubw32/ostest: Enable the vfork() test.
-	* fs/binfs:  Move apps/builtin/binfs.c to fs/binfs/fs_binfs.c
-	  CONFIG_APPS_BINDIR rename CONFIG_FS_BINFS
-	* include/nuttx/binfmt/builtin.h:  Some of the content of
-	  apps/include/apps.h moved to include/nuttx/binfmt/builtin.h
-	* binfmt/libbuiltin/libbuiltin_utils.c:  Move builtin
-	  utility functions from apps/builtin/exec_builtins.c to
-	  binfmt/libbuiltin/libbuiltin_utils.c
-	* binfmt/builtin.c and binfmt/libbuiltin:  Add a binary "loader"
-	  that can be used to execute builtin programs from the BINFS
-	  file system.
-	* configs/sim/nsh: Convert to use kconfig-frontends configuration
-	  tool.
-	* binfmt/binfmt_schedunload.c:  Add logic based on SIGCHLD to
-	  automatically unload and clean-up after running a task that
-	  was loaded into memory.
-	* binfmt/libbuiltin: Extensions from Mike Smith
-	* sched/task_reparent.c:  Add internal interface to change the
-	  parent task.
-	* sched/task_posixspawn():  Move libc/spawn/lib_ps.c to
-	  sched/task_posixspawn() now it requires internal, reparenting
-	  interfaces
-	* include/nuttx/spawn():  Move libc/spawn.h to include/nuttx/spawn.h
-	* arch/arm/include/lpc17xx/chip.h, irq178x.h:  Integrate Marcelo
-	  Rommel's LPC1788 definitions into the base LPC17xx.
-	* configs/olimex-lpc1766stk/nsh:  Convert configuration to use
-	  the kconfig-frontends tools.
-	* sched/task_reparent.c:  Simplify reparenting interface.
-	* arch/arm/src/[many]: More LPC1788 definitions from Rommel
-	  Marcelo incorporated.
-	* configs/open1788:  Board configuration for the Wave Share
-	  Open1788 board.  Still fragmentary (contributed by Rommel
-	  Marcelo, adapted to use kconfig-frontends.
-	* net/send():  Add logic to work around delayed ACKs by splitting
-	  packets (contributed by Yan T.).
-	* net/recvfrom():  Fix a bug.  When the host closes a connection
-	  (gracefully).  recv[from]() returned success and the closure
-	  was never detected.  Hmmm.. I don't know why the network monitor
-	  did not catch this event.  This is an important bug fix.
-	* net/recvfrom():  Fix a introduced with the last bugfix.  If
-	  the peer does an orderly closure of the socket, report 0 not
-	  -ENOTCONN
-	* configs/lm3s6965-ek/README.txt and tools/:  Add an OpenOCD
-	  configuration for the LM3S (from Jose Pablo Carballo).
-	* nuttx/lcd/hd4478ou.h and configs/pcblogic-pic32mx/src/up_lcd1602:
-	  Start of support of LCD1602 alphanumeric LCD.  I need a few
-	  more parts before I can finish integrating this one.
-	* arch/arm/src/*/chip.h and arch/arm/include/*/chip.h:  Move all
-	  priority ranges from the src to the include chip.h header file.
-	* arch/arm/include/armv7-m/irq.h:  Add inline functions to enable
-	  and disable interrupts via the BASEPRI register.
-	* arch/arm/Kconfig:  Add new option CONFIG_ARM7VM_USEBASEI
-	* arch/arm/src/*/*_irq.c:  Set the priority of the SVCALL exception
-	  to the highest possible value.
-	* arch/armv7-m/up_hardfault.c:  Fail if a hardfault occurs
-	  while CONFIG_ARM7VM_USEBASEPRI=y.
-	* arch/arm/src/stm32/stm32_serial.c:  Add support for USART
-	  single wire mode (Contributed by the PX4 team).
-	* sched/: Implement support for retaining child task status after
-	  the child task exists.  This is behavior required by POSIX.
-	  But in NuttX is only enabled with CONFIG_SCHED_HAVE_PARENT and
-	  CONFIG_SCHED_CHILD_STATUS
-	* Add support for keyboard encode to the keypad test (from
-	  Denis Carikli).
-	* configs/olimex-lpc1766stk/nettest:  Configuration converted to
-	  use the kconfig-frontends tools.
-	* net/net_poll.c:  Split net_poll() to create psock_poll() too.
-	* net/net_poll.c:  Fix poll/select issure reported by Qiang:
-	  poll_interrupt() must call net_lostconnection() when a
-	  loss of connection is reported.  Otherwise, the system will
-	  not know that the connection has been lost.
-	* sched/group_create.c, group_join.c, and group_leave.c:  Add
-	  support for task groups.
-	* sched/group_signal.c and task_exithook.c:  Send signal to all
-	  members for the parent task group.
-	* include/nuttx/sched.h and sched/env_*.c:  Move environment
-	  variables into task group structure.
-	* sched/: Lots of file changed.  Don't keep the parent task's
-	  task ID in the child task's TCB.  Instead, keep the parent
-	  task group IN the child task's task group.
-	* fs/, sched/, include/nuttx/sched.h, and include/nutts/fs/fs.h:
-	  Move file data from the TCB to the task group structure.
-	* libc/stdio/, sched/, include/nuttx/lib.h, and include/nutts/fs/fs.h:
-	  Move stream data from the TCB to the task group structure.
-	* net/, sched/, and include/nuttx/net/net.h:  Move socket data
-	  from the TCB to the task group structure.
-	* sched/task_starthook.c, sched/task_start.c, and include/nuttx/sched.h:
-	  Add a task start hook that will be called before the task main
-	  is started. This can be used to schedule C++ constructors to run
-	  automatically in the context of the new task.
-	* binfmt/binfmt_execmodule: Execute constructors as a start hook.
-	* sched/os_start.c: Fix ordering of group initialization.
-	* configs/stm32f4discovery/usbnsh:  Add an NSH STM32F4Discovery
-	  configuration that uses USB CDC/ACM for the NSH console.
-	* configs/stm32f4discovery/nsh: Converted to use the kconfig-frontends
-	  tools.
-	* configs/*/src/up_userleds.c: Fix a error that was cloned into
-	  all STM32 user LED code.  The wrong definitions were being used
-	  to set LEDs on or off.
-	* arch/*/common/up_internal.h and arch/*/common/up_initialize.c:
-	  Serial was driver was not being built if there is no console
-	  device.  Obviously, the serial driver may be needed even in
-	  this case.
-	* arch/arm/src/stm32/stm32_serial.c: If there is a serial console,
-	  it would be ttyS0 and the others would be ttyS1-5.  If there
-	  is not serial console, was labeling them ttyS1-6; now labels them
-	  ttyS0-5.
-	* fs/fs_syslog.c: Can't handle SYSLOG output to character device from
-	  the IDLE task (because it can't block). syslog_putc now returns EOF
-	  on failure and sets errno.  Fixed some errors in error handling.
-	* libc/stdio/lib_syslogstream.c:  Checking of return value from
-	  syslog_putc was bogus.  Switching to EOF for all errors solves
-	  this.
-	* arch/arm/src/lm/chip/lm4f_memorymap.h: More LM4F changes from
-	  Jose Pablo Carballo.
-	* drivers/serial/serial.c, include/nuttx/serial/serial.h,
-	  drivers/usbdev/cdcacm.c, and drivers/pl2303.c: Add support for
-	  removable serial devices (like USB serial).  This support is enabled
-	  by CONFIG_SERIAL_REMOVABLE.
-	* arch/*/src/*/Toolchain.defs: Change assignment so that we can
-	  override CROSSDEV with a make command line argument.
-	* include/assert.h:  Mark assertion functions as non-returning.
-	* arch/*/src/*/up_assert.h:  Mark _up_assert() as non-returning.
-	* drivers/mtd/at25.c: When the AT25 device was not available the
-	  initialization did not fail like it should. From Petteri Aimonen.
-	* fs/fat/fs_configfat.c:  Fix some errors in FAT formatting logic
-	  for large devices and for FAT32. From Petteri Aimonen.
-	* fs/fat/fs_fat32util.c:  Fix an initialization error found by
-	  Petteri Aimonen.  freecount and next freecount initialization were
-	  reversed.
-	* drivers/mmcsd/mmcsd_spi.c: Some SD cards will appear busy until
-	  switched to SPI mode for first time.  Having a pull-up resistor on
-	  MISO may avoid this problem, but this patch makes it work also
-	  without pull-up.  From Petteri Aimonen.
-	* fs/fat/fs_fat32.c: Fix a compilation error when FAT_DMAMEMORY=y.
-	  From Petteri Aimonen.
-	* arch/arm/src/stm32/chip/stm32_spi.h: STM32F4 max SPI clock freq is
-	  37.5 MHz.  Patch from Petteri Aimonen.
-	* arch/arm/src/stm32/stm32_spi.c: Fixes for SPI DMA work on the
-	  STM32F4. Includes untested additions for the F1 implementation as
-	  well.  From Petteri Aimonen.
-
-6.26 2013-03-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* drivers/serial/serial.c:  Correct some race conditions when checking
-	  for disconnection of a removable serial device.
-	* sched/task_posixspawn.c, task_spawn.c, task_spawnparms.c and
-	  spawn_internal.h:  Create new interface task_spawn() that is
-	  like posix_spawn(), but uses entry point addresses like
-	  task_create().
-	* Corrected all argv[] arguments. Should be char * const *, not
-	  const char **.
-	* sched/pthread* and include/nuttx/sched: Move pthread join data
-	  and pthread key calculation data into the "task group" structure.
-	* sched/atexit.c, on_exit.c, task_exithook.c and include/nuttx/sched.h:
-	  Move atexit and on_exit data structures to task group.  These
-	  callbacks are only issued now when the final member of the task
-	  group exits.
-	* sched/waitpid.c, task_exithook.c and include/nuttx/sched.h:
-	  Move waitpid data data structures to task group.  Callers of
-	  of waitpid() are now only awakened when the final thread of the
-	  task group exits.
-	* sched/mq_descreate.c, mq_open.c, mq_remove.c, group_leave.c, and
-	  include/nuttx/sched.h:  Move list of opened message queues to
-	  the task group structures.  Now all message queues opened by
-	  members of the group are closed when the last member of the group
-	  exits.
-	* includes/nuttx/sched.h and Lots of files:  Change name of _TCB to
-	  struct tcb_s so that (1) it is consistent with other NuttX naming and
-	  so that (2) the naming can handle some upcoming changes.
-	* includes/nuttx/sched.h and sched/:  There are three TCB structures:
-	  struct tcb_s is a generic common version, struct task_tcb_s is a
-	  version for tasks and kernel threads and pthread_tcb_s is a version
-	  for pthreads.  By dividing the TCB structure into these variants,
-	  pthreads do not have to be burdened by task-specific data structures
-	  (and vice versa).
-	* sched/task_exithook.c and group_create.c:  Fix an error, the
-	  task within the task group may exit early leaving a pthread to
-	  exit the task group last.  In this case, we need to remember the
-	  the PID of the main task in the task group and use that PID for
-	  signalling SIGCHILD to the parent task group.
-	* included/nuttx/sched.h and sched/sig*.c:  Numerous changes to the
-	  signal deliver logic so that the delivery of signals to threads
-	  within a task group will be compliant with delivery of signals
-	  to threads within a POSIX process.
-	* sched/mq_recover.c and task_exithook.c:  Add logic to handle the
-	  case where a task is deleted (or pthread canceled) while it is
-	  waiting on a message queue.  task_delete() and pthread_cancel()
-	  are dangerous interfaces.  This is only one feeble recover measure
-	  of *many* that would be needed to do this safely.
-	* sched/group_killchildren.c, task_recover.c, group_foreachchild.c,
-	  sched/restart.c, sched/task_delete.c, and others:  Beef up logic
-	  to better support task deletion and pthread cancellation.  Needed
-	  to pass need OS test case for task_restart().
-	* sched/include/sched.h and all timed functions in sched/:  Move
-	  timer from local variables to TCB.  This is needed so that if a
-	  task is canceled or restarted while it is waiting for a timed
-	  event, we can gracefully recover.  We can't let the timer expire
-	  after the task has been deleted.
-	* arch/arm/include/stm32 and arch/arm/src/stm32:  Add support for
-	  the STM32 F3 family (still missing some things).
-	* configs/stm32f3discovery:  This will (eventually) be support for
-	  the STM32F3Discovery board.
-	* STM32 F3 and STM32F3Discovery port is complete a ready for test.
-	* arch/arm/src/lpc17xx: Add support for the Cortex-M4 FPU and
-	  Mikes "common vector" logic.  The LPC1788 is going to need
-	  these things.
-	* arch/arm/src/stm32/stm32_spi.c:  Fix SPI DMA logic that does
-	  not work if sem_wait() is interrupt by a signal.  From Petteri
-	  Aimonen.
-	* drivers/input/max11802.c: MAX11802: Fix a timing bug that
-	  corrupted coordinates.  From Petteri Aimonen.
-	* drivers/mmcsd/mmcsd_spi.c:  Use SPI locking so that MMC/SD can
-	  exist on the same bus as other SPI devices.  From Petteri
-	  Aimonen.
-	* graphics/nxfonts/nxfonts_sans17x22.h: Small mod to hyphen in
-	  sans17x22 font.  The hyphen did not have any space on its sides.
-	  This caused it to run together with other characters so that for
-	  example "+-" would look weird. From Petteri Aimonen.
-	* mm/mm_mallinfo.c:  Take MM semaphore in mm_mallinfo. From Petteri
-	  Aimonen.
-	* configs/stm32f3discovery/nsh/defconfig:  Disable SPI.  It is not
-	  used.
-	* drivers/mtd/sst39vf:  Add a driver for the SST29VF NOR FLASH parts.
-	* sched/os_start.c:  Add an additional call-out to support board-
-	  specific driver initialization during the start phase:  If
-	  CONFIG_BOARD_INITIALIZE is defined, then an additioinal
-	  initialization function called board_initialize() will be called
-	  just after up_initialize() is called and just before the initial
-	  application is started.
-	* arch/arm/src/stm32/stm32_otgfsdev.c, drivers/usbdev/usbdev_trprintf.c,
-	  and include/nuttx/usb/usbdev_trace.h:  Add logic to support decoding
-	  of device-specific trace events to make the trace output more readable.
-	  From Petteri Aimonen.
-	* arch/arm/src/stm32/stm32_otgfsdev.c:  Need to manually set CNAK in
-	  the case where we are waiting for a SETUP command with DATA.  Otherwise,
-	  the core may NAK further transactions.  From Petteri Aimonen.
-	* arch/arm/src/stm32/stm32_otgfsdev.c: Add logic to prevent premature
-	  to IDLE state.  This change (plus the previous) was necessary to get
-	  the CDC/ACM driver working the certain STM32 F4 hardware (but not others).
-	  These changes appear to prevent certain race conditions that may or may
-	  not cause USB problems.  From Petteri Aimonen.
-	* arch/arm/include/armv6-m and arch/arm/src/armv6-m: First cut at support
-	  for the Cortex-M0
-	* configs/nutiny-nuc120, arch/arm/include/nu1xx, and arch/arm/src/nuc1xx:
-	  Support for Nuvoton NuTiny NUC120.
-	* 2013-02-22:  the Cortex-M0, NuvoTron NUC1xx, and NuTiny-SDK-NUC120 port
-	  is code complete and ready for testing.
-	* configs/ekk-lm3s9b96/ostest and nsh:  All EKK-LM3S9B96 configurations
-	  converted to use the mconf configuration tool.
-	* configs/zkit-arm-1769:  Add support for Zilogic System's ARM development
-	  Kit, ZKIT-ARM-1769.  From Rashid.
-	* configs/zkit-arm-1769/hello:  Add a "Hello, World!" configuration for
-	  the KBIT-ARM-1769 board.  From Rashid.
-	* configs/zkit-arm-1769/thttpd:  Add a THTTPD configuration for the
-	  KBIT-ARM-1769 board.  From Rashid.
-	* 2013-02-27: All configurations for the Cortex-M0 NuTINY-SDK-NUC120
-	  appear to be functional and stable.
-	* configs/zkit-arm-1769/nsh:  Add an NSH configuration for the
-	  KBIT-ARM-1769 board.  From Rashid.
-	* arch/arm/src/stm32/stm32_otgfsdev.c:  Fixes from Petterri Aimonen
-	  related to corner cases that can cause infinite interrupts.
-	* drivers/usbdev/usbmsc_scsi.c:  Change to allow the full name in the
-	  USB descriptor but a truncated, 8-byte name in the SCSI field.
-	  From Petteri Aimonen.
-	* arch/arm/src/stm32/stm32_spi.c: Need to clear error flags to prevent
-	  corruption of subsequent transfers.  Also, bit count should not be
-	  changed while the SPI peripheral is enabled.  From Petteri Aimonen.
-	* drivers/mmcsd/mmcsd_spi.c:  When bus is shared, the speed has to be
-	  set every time.  Also SD cards require a few dummy clocks to react
-	  into CS release.  From Petteri Aimonen.
-	* configs/lm4f120-launchpad: In initial configuration for testing
-	  the LM4F120 LaunchPad port.  This is to support testing only and
-	  is not yet a functional board port (as of 2013-03-01).
-	* arch/arm/include/lm/lm4f_irq.h and arch/arm/src/lm/chip/lm4f_vector.h:
-	  Add interrupt vector/IRQ number definitions for the LM4F120.
-	* arch/arm/src/stm32f20xxx_dma.c and stm32f40xxx_dma.c:  Fix a typo
-	  in assigned base register addresses for each DMA channel.  From
-	  Yan T.
-	* Several build fixes from Mike Smith were incorporated.  These were
-	  mostly compilation errors introduced into the system because of the
-	  large number of recent changes with broad scope (2013-03-04).
-	* configs/zkit-arm-17969/src/up_can.c:  Add CAN support to the
-	  Zilogics Technologies ZKIT-ARM-1769 board (From Rashid Fatah, (2013-03-04)).
-	* arch/arm/src/lpc17/lpc17*_clockconfig.c:  The WaveShare Open1788
-	  board now boots and passes the OS test.  This is the work of
-	  Rommel Marcelo (2013-03-04).
-	* arch/arm/src/lm/lm_gpio.c, lm_gpio.h, and chip/lm4f_pinconfig.h
-	  Extend GPIO logic to handle LM4F.  Add LM4F pin configuration header
-	  file (2013-03-04).
-	* configs/open1788:  Enable LED support in all configurations.
-	  (2013-03-04)
-	* configs/open1788/nsh:  NSH configuration verified function.  By Rommel
-	  Marcelo (2013-03-05).
-	* configs/open1788/src/lpc17_nsh.c:  Use the SD card interface, not SPI
-	  to interface with SD cards (2013-03-05.
-	* arch/arm/src/lpc17xx/lpc17_sdcard.c and header files:  Clone the STM32
-	  SD card interface to the LPC1788.  It appears to be the same IP.
-	  (2013-03-05)
-	* libc/wqueue:  Work queue logic moved from sched/ to libc/wqueue.  It
-	  is not really core OS functionality and this move helps prepare for
-	  user-space work queues. (2013-03-05)
-	* libc/wqueue:  Implemented user-space work queues.  These will not
-	  get tested until the next time I attempt a NuttX kernel build.
-	  (2013-03-05).
-	* arch/arm: Correct some bad syscall dispatching logic.  This change
-	  cannot be fully tested until there is a fielded NuttX kernel build.
-	  (2013-03-06).
-	* net/net_poll.c:  Correct logic that checks if the socket is
-	  disconnected when the poll is setup.  That is bad logic:  Listen
-	  sockets, for example, are not connected.  In that case, the purpose of
-	  the poll is to wait for connection events.  As a result of this,
-	  poll/select would return immediately with POLLHUP with it was used to
-	  detect connection events.  This fix for now was to check instead if
-	  the socket is closed (meaning that it was connected at one time but
-	  was closed by the remote peer).  That excludes the listen socket which
-	  was never connected.  This does introduce a new problem, however.  If
-	  the socket was not closed, but lost the connection through an abnormal
-	  event, then poll/select will hang.  That needs to be revisited.
-	  (2013-03-07)
-	* fs/fs_select.c:  Was not checking if the timeout parameter was NULL
-	  but would, instead, setup a bogus timeout based on whatever it found at
-	  address zero.  Also, improved some of the memory allocation logic so
-	  that it will not use so much memory. (2013-03-07)
-	* net/net_poll.c:  Handle the missing case.  Now tests for not connected
-	  AND not listening.  I think that now covers all of the cases including
-	  the missing case noted above. (2013-03-07)
-	* mm/:  Move all memory manager globals into a structure.  A reference
-	  to this structure is now passed internally between mm APIs. This
-	  change will (eventually) support multiple heaps and heap allocators.
-	  (2013-03-08).
-	* mm/ and include/nuttx/mm.h:  Implement support for multiple heaps.
-	  (2013-03-08).
-	* arch/*/src: xyz_addregion() needs to call kmm_addregion, not mm_addregion.
-	  (2013-03-08).
-	* sched/kmm*.c:  Move this garbage kmm*.c file to mm/. until I decide what
-	  to do with them (which is probably to just delete them). (2013-03-08).
-	* mm/mm_test.c and Makefile.test:  Deleted the memory test.  This was
-	  a good test and helped me a lot when I wrote the memory manager, but
-	  now it is in the way and paralyzing other efforts.  So the memory unit
-	  test was deleted. (2013-03-08)
-	* sched/sched_free.c:  Rename sched_free() to sched_ufree(); Add
-	  sched_kfree() to handler deferred kernel heap allocations. (2013-03-10)
-	* arch/:  User user-accessible heap to allocate all stacks. (2013-03-10)
-	* arch/arm/src/sam3u:  The AT91SAM3U will now support a kernel heap if
-	  so configured. (2013-03-10)
-	* configs/sam3u-ek/knsh:  This configuration was converted to use the
-	  kconfigs-frontends build tool. (2013-03-10)
-	* configs/*/include/user_map.h and include/nuttx/userspace.h:  Remove
-	  the very kludgy user_map.h file and replace it with a header that
-	  is expected at the beginning of the user-space blob. (2013-03-10)
-	* configs/sam3u-ek/kernel/up_userspace.c:  This is the header for
-	  the SAM3U-EK's user space.  (2013-03-10)
-	* sched/os_bringup.c:  In the kernel build, os_bringup() now uses the
-	  user-space header to automatically start the user-space work queue,
-	  if so configured. (2013-03-10)
-	* arch/arm/src/lpc17xx/lpc17_mpuinit.c and lpc17_userpace.c:  Add
-	  support for the MPU and kernel build for the LPC17xx family.
-	  (2013-03-11)
-	* configs/open1788/kernel and knsh:  Add kernel build support and
-	  a kernel NSH configuration for the WaveShare Open1788 board.
-	  (2013-03-11)
-	* configs/sam3u_ek/kernel, knsh, and scripts:  Move some files around
-	  for better supportability. (2013-03-11)
-	* configs/open1788/kernel, knsh, and scripts:  Add a kernel mode build
-	  configuration for the WaveShare Open1788 board. (2013-03-11)
-	* arch/arm/src/armv7-m/up_mpu.c:  Several fixes to MPU logic.
-	  (2013-03-12).
-	* arch/arm, configs/sam3u-ek, configs/open1788:  Fix memory map for
-	  kernel mode build; Some regions were overlapping. (2013-03-13).
-	* arch/:  Rename g_heapbase to g_idle_topstack.  This is the same value
-	  however:  The top of the IDLE stack is the same as the base of the
-	  heap in the flat build.  But not in the kernel build:  The base of
-	  the heap is elsewhere so the naming was wrong. (2013-03-13).
-	* libc/stdlib/lib_itoa.c:  Implementation of itoa() contributed by
-	  Ryan Sundberg. (2013-03-14).
-
-6.27 2013-04-28 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/armv7-m/up_mpu.c:  Correct MPU sub-region settings for
-	  unaligned regions (2013-03-15).
-	* arch/arm/src/armv6-m/up_svcall.c:  Bring up to equivalent to the
-	  ARMv7-M version (2013-03-15).
-	* configs/lm4f120-launchpad/tools:  Add scripts and instructions to
-	  simplify use of OpenOCD with ICDI (from JP Carballo, 2013-03-15).
-	* tools/mkconfig.c:  Logic that attempts to suppress buffered I/O
-	  within the kernel is wrong.  sizeof(struct file_struct) must be
-	  the same in both kernel- and user-spaces (2013-03-16).
-	* arch/arm/src/common/up_pthread_start.c, libc/pthread/pthread_startup.c,
-	  and related files:  Implement switch to user-space and user-space
-	  pthread start-up function (2013-03-16).
-	* arch/arm/src/common/up_signal_handler.c, libc/pthread/pthread_startup.c,
-	  and related files:  Implement switch to user-space and user-space
-	  pthread start-up function (2013-03-16).
-	* arch/arm/src/common/up_signal_handler.c, libc/signal/signal_handler.c,
-	  arch/arm/src/armv[6|7]-m/up_svcall.c, arch/arm/include/armv[6|7]-m/svcall.h,
-	  include/nuttx/userspace.h, and sched/sig_deliver.c:  Implement switch
-	  to user-space from kernel signal delivery trampoline before calling user-
-	  space signal handler.  Return from user-space signal handler using a
-	  system call (2013-03-16).
-	* arch/arm/src/armv[6|7]-m/up_schedulesigaction.c: Need make sure we are
-	  in kernel mode before switching to kernel-mode signal handler
-	  trampoline (2013-03-16).
-	* arch/arm/include/armv[6|7]-m/irq.h, and arch/arm/src/armv[6|7]-m/up_svcall.c:
-	  Add support for nested system calls.  In the current design, this can
-	  happen only under one condition:  When the kernel system call logic calls
-	  back into user space in order to allocate user space memory.  So it is
-	  expected that the maximum nesting level will be only 2 (2013-03-17).
-	* libc/stdio/lib_sccanf.c:  Correct an error in sscanf.  If %n occurs in
-	  the format statement after the input data stream has been fully
-	  parsed, the %n format specifier will not be handled.  Reported by
-	  Lorenz Meier (and also earlier by Kate) (2013-03-17).
-	* drivers/serial/serial.c:  Support for O_NONBLOCK was not supported
-	  in the "upper half" serial driver.  This is normally not an issue
-	  because UART TX is almost always available, but it does become an
-	  if the UART uses hardware flow control or if the a "lower half" is
-	  something like the USB CDC/ACM driver that may need to block for
-	  significant amounts of time (2013-03-18).
-	* arch/arm/src/armv7-h/ram_vectors.h, up_ramvec_*.c, arch/arm/src/*/*_irq.c,
-	  and Make.defs:  Add support for modifiable interrupt vectors in RAM
-	  (2013-03-18).
-	* arch/arm/src/armv7-m/up_exception.S, sam3u/sam3u_vectors.S, and
-	  lpc17xx/lpc17_vectors.S: In exception handling with CONFIG_NUTTX_KERNEL,
-	  need to explicitly set and clear the privilege bit in the CONTROL
-	  register on return.  I assumed this would be handled automatically
-	  by the EXC_RETURN.  Silly me (2013-03-18).
-	* arch/arm/src/lpc17_adc.c:  Add a work-around for an ADC errata.  From
-	  Chris Taglia (2013-3-19).
-	* arch/arm/src/armv7-m/up_hardfault.c:  If the PRIMASK is used to disable
-	  interrupts, then additional logic is required in the hard fault handler
-	  (2013-3-19).
-	* libc/ and mm/: Directories where the same sources files are used to
-	  build different objects in the first and second pass kernel builds need
-	  to keep those objects in separate directories so that they are not
-	  constantly rebuilt (2013-3-19).
-	* fs/fat:  Create an error in FAT file creation.  The FAT logic was
-	  not making a distinction between directory non-existence and file
-	  non-existence so when it you try to create a file in a non-existent
-	  directory, it would create a file with the name of the missing
-	  directory.  Reported by Andrew Tridgell (2013-03-30).
-	* Numerous files:  Changed the prototypes of up_create_stack() and
-	  up_release_stack() so that is includes a task type.  Normally you
-	  can get this type from the TCB parameter, but there are certain
-	  conditions when the task type is not valid in the TCB when these
-	  functions are called.  Only the prototypes were changed on this
-	  big, initial checkin.  The next step will be to add logic to
-	  allocate stacks for kernel threads from protected kernel memory
-	  and all other task types from unprotected user memory (2013-03-20).
-	* arch/*/src/common/up_createstack.c, up_use_stack.c, and
-	  up_release_stack.c:  If creating or releasing the stack for a kernel
-	  thread, use the kernel allocator so that the kernel thread stacks
-	  are protected from user application meddling (2013-03-20).
-	* arch/arm/src/armv[6|7]-m/up_scall.c:  Fix parameter passing for
-	  all system call inline functions with > 3 parameters (2013-03-20)
-	* arch/*/src/common/up_stackframe.c and include/nuttx/arch.h:  Add
-	  and new interface to set aside memory on the stack.  This will be
-	  used at least in the kernel build to hold task arguments (2013-03-21).
-	* sched/sig_deliver.c:  When dispatching signals to user threads,
-	  copy the siginfo_t from the sigq to the stack.  The signal queue
-	  is allocated from kernel memory; however, the current stack is
-	  the user's stack and the user code will be able to access the
-	  signinfo_t data from the stack copy (2013-03-21).
-	* arch/arm/src/stm32:  Added support for the kernel mode build
-	  (cloned from the lpc17xx).  (2013-03-21).
-	* configs/stme32f4discovery/kernel and scripts:  Add support for
-	  the kernel mode build on the STM32F4Discovery  (2013-03-21).
-	* drivers/st7567.c/h and include/nuttx/lcd/st7567.h:  Driver for
-	  the ST7567 LCD Display Module from Univision Technology Inc.
-	  contributed by Manikandan.S (2013-03-22).
-	* configs/zkit-arm-1769:  Now supports the ST7567 LCD display
-	  module.  Added an nxhello configuration for testing (Manikandan.S,
-	  2013-03-22).
-	* configs/stm32f4discovery/kostest:  Add a kernel mode version
-	  of the OS test for the STM32F4Discovery board (2013-03-22).
-	* nuttx/include/nuttx,  nuttx/configs/sam3u-ek, nuttx/configs/open1788,
-	  nuttx/configs/stm32f4discovery, and nuttx/arch/arm:  Complete
-	  re-archtecting of how signals are dispatched to user-space code
-	  in the kernel build.  The original implementation was C-based
-	  and simpler.  However, the C code intermixed with SVC calls was
-	  not properly preserving registers.  The more complex, assembly
-	  language version does not suffer from these issues.  I believe
-	  the kernel build can now be called "feature complete"
-	  (2013-03-23).
-	* binfmt/binfmt_execmodule.c:  Here is a place where I forget
-	  to update the call to sched_releasetcb() to pass the thread
-	  type as the second parameter (2013-03-23).
-	* arch/arm/src/lm, kinetis, lpc43, and nuc1xx:  Add kernel build
-	  support to all ARMv7-M and ARMv6-M chips.  There are no
-	  configurations in place to verify these additions!
-	  (2013-03-24).
-	* arch/arm/src/lm/lm_gpio.h:  Correct typos in alternate function
-	  definitions (2013-03-24).
-	* arch/arm/src/lm/lm_lowputc.c and lm_serial.c:  Add support for
-	  the 7 UARTs on the LM4F120 (2013-03-24).
-	* configs/lm4f120-launchpad/ostest/defconfig:  Fix the configured
-	  RAM size.  This appears to be the last show-stopper bug:  The
-	  LaunchPad now runs NuttX!  (2013-03-24).
-	* configs/lm4f120-launchpad/nsh:  Add an NSH configuration for the
-	  LaunchPad (2013-03-24).
-	* configs/kwikstik-k40:  Converted configurations to use the
-	  konfig-frontends tool (2013-03-25).
-	* configs/twr-k60n512:  Converted configurations to use the
-	  konfig-frontends tool (2013-03-25).
-	* arch/arm/src/lpc17xx/lpc17_lcd.c:  Add an LCD framebuffer driver
-	  for the LPC177x/8x family (2013-3-26).
-	* arch/arm/src/lpc17xx/lpc17_emc.c and
-	  configs/open1788/src/lpc17_sdraminitialize.c:  Began testing the
-	  Open1788 SDRAM.  The SDRAM is basically functional, but there are
-	  failures with the SDRAM is stressed by the memory test at
-	  apps/example/ramtest (SDRAM support and the RAM test can be configured
-	  into the base configs/open1788/nsh configuration as described in
-	  configs/open1788/READMT.txt (2013-3-27).
-	* configs/open1788/nxlines:  Add a configuration to test both the
-	  Open1788 LCD and SDRAM which is used as a framebuffer (2013-3-27).
-	* arch/arm/src/lpc17xx/lpc17_gdma.c and lpc17_sdcard.c:  Began
-	  implementation of the LPC17 DMA and integration into the SDCARD
-	  driver (2013-3-29).
-	* arch/arm/src/lpc17xx/lpc17_gdma.c: LPC17 DMA is code complete and
-	  under test.  Does not yet work (2013-3-30).
-	* fs/fat/fs_fat32dirent.c and fs_fat32util.c:  Several fixes to the
-	  FAT file system from Ronen Vainish.  These fixes mostly involve the
-	  logic to extend directory clusters for the case of long file names
-	  but also include a few important general fixes (such as for storing
-	  32 bit FAT values) (2013-03-31).
-	* arch/arm/src/lpc17xx/lpc17_gdma.c and lpc17_sdcard.c:  SD card DMA
-	  is now functional.  Thre may be some issues with DMA from CPU SRAM
-	  which is apparently disabled in sleep mode; up_idle() always enters
-	  sleep mode (2013-03-31).
-	* arch/arm/src/stm32:  Add architecture support for the STM32 F427/F437
-	  chips. Contributed by Mike Smith (2013-4-01).
-	* configs/zkit-arm-1769/src/up_can.c:  Add support for both CAN1
-	  and CAN2.  Contributed by M.Kannan (2013-4-01).
-	* arch/arm/src/lpc17xx/lpc17_spi.c and lpc17_ssp.c and
-	  configs/olimex-lpc1766stk, nucleus2g, zkit-arm-1769, and
-	  lpcxpresso-lpc1768:  The initialization function for both the LPC17xx
-	  SPI and SSP blocks was called up_spinitialize() which is the common API
-	  definition of include/nuttx/spi.h.  But this raises a problem when the
-	  MCU has multiple blocks for differ SPI implementations as does the
-	  LPC17xx (and also as does other architectures like STM32 that have
-	  USARTs that can serve as SPI interfaces as well).  These were renamed
-	  to lpc17_spiinitialize() and lpc17_sspinitialize() in this case.
-	  Problem reported by M. Kannan (2013-4-01).
-	* arch/arm/src/lpc17xx/lpc17_gpdma.c and lpc17_idle.c:  In sleep mode,
-	  DMA can only be performed from peripheral SRAM.  CPU SRAM is shutdown
-	  in sleep mode.  In order to simplify DMA memory allocation, the LPC17xx
-	  IDLE will now hold off going to sleep mode if there is a DMA in progress
-	 (2013-4-01).
-	* configs/open1788/src/lpc17_autoleds.c:  Reversed sense of the IDLE LCD.
-	  It is now off when the LPC17 is sleeping and on when awake.  That is
-	  much more useful because it provides a good visual indication of the
-	  dynamic CPU load (2013-4-01).
-	* configs/open1788/src/lpc17_touchscreen.c and lpc17_ssp.c:  Add
-	  support for the touschscreen on the WaveShare LCD (2013-4-01).
-	* configs/several:  There were already some functions called
-	  lpc17_sspinitialize().  So they had to be renamed (2013-4-01).
-	* arch/arm/src/lpc17xx/lpc17_ssp.c:  Adapted to work with the LPC178x
-	  family (2013-4-01).
-	* arch/arm/src/lpc17xx/lpc17_gpio.c/.h:  Separate LPC176x and LPC178x
-	  logic into separate files.  The logic is diverging to much to
-	  try to retain common code (2013-4-03).
-	* net/net_clone.c:  Fix compilation error when socket options are
-	  are disabled. Reported by Daniel O'Connor (2013-4-05).
-	* configs/zkit-arm-1769/src/up_leds.c:  Fix a typo introduced into
-	  the button interrupt logic (2013-4-05).
-	* arch/arm/src/lpc17xx/lpc178x_gpio.c:  Re-design of the GPIO
-	  logic for the LPC178x family by Rommel Marcelo (2013-4-05).
-	* arch/arm/src/lpc17_gpiodbg.c:  Updated so that it correctly
-	  reports LPC177x/8x GPIO registers when GPIO debug is enabled
-	  (2013-4-05).
-	* arch/arm/src/Makefile:  The variable NUTTX already includes
-	  the extension $(EXEEXT).  So remove the second extension
-	  $(NUTTX)$(EXEEXT) in two places (2013-4-7).
-	* arch/arm/src/lpc17xx/lpc17_gpioint.c:  Disable interrupts in
-	  lpc17_setintedge().  This logic must be atomic because it can be
-	  re-entered before it completes enabled interrupts, sometimes
-	  leaving the interrupts in a strange state (2013-4-7).
-	* arch/arm/src/lpc17_lcd.c:  Rommel Marcelo got the LPC1788
-	  framebuffer-based LCD working.  Very nice! (2013-4-08).
-	* arch/arm/src/lm/lm_clockconfig.c and configs/lm4f120-launchpad:
-	  Fix handling of the RCC SYSDIV2 field when the PLL output is
-	  400MHz.  Don't forget to set the USERCC2 bit in the register or
-	  all is for naught (2013-4-09).
-	* configs/zkit-arm-1769/src/up_lcd.c, up_ssp.c, and up_spi.c:
-	  Use SSP0 to LCD and SPI to SD-Card on the Zkit-arm-1769 board.
-	  From Manikandan. S (2013-4-10)
-	* configs/olimex-lpc1766stk/usbserial:  Converted to use the
-	  kconfig-config frontends tools (2013-4-12).
-	* drivers/usbdev/pl2303.c: Fix some compilation errors that
-	  crept in when fixes to the CDC/ACM driver where blindly
-	  incorporated in the PL2303 driver (2013-4-12).
-	* configs/stm3210e-eval/usbserial:  Converted to use the
-	  kconfig-config frontends tools (2013-4-12).
-	* configs/nucleus2g/usbserial:  Converted to use the
-	  kconfig-config frontends tools (2013-4-12).
-	* arch/arm/src/kl and arch/arm/include/kl:  Add support for the
-	  Kinetis L family of Cortex-M0+ MCUs.  Contributed by Alan
-	  Carvalho de Assis.  NOTE:  This is still very much a work in
-	  progress as of this initial commit (2013-04-16).
-	* configs/freedom-kl25z:  Support for the Freedom KL25Z board
-	  contributed by Alan Carvalho de Assis.  NOTE:  This is still
-	  very much a work inprogress as of this initial commit
-	  (2013-04-16).
-	* arm/arm/src/armv6-m and arch/arm/include/armv6-m:  Ooops.  Fix
-	  a major screw-up:  The Cortex-M0 has no BASEPRI register but
-	  the current logic was using it to manage interrupts.  Switch
-	  to using the PRIMASK.  This means that hardfaults will (again)
-	  occur when SVC instructions are executed (2013-4-16).
-	* configs/stm3240g-eval/ostest:  Converted to use the kconfig-frontends
-	  tools (2013-4-17).
-	* sched/task_exithook.c:  Don't flush the streams until the
-	  final thread of the group exits.  Flushing may cause the
-	  thread to get suspended at a bad time and other threads in the
-	  group may run while the exiting thread is in an unhealthy state.
-	  This can cause crashes under certain circumstance.  This is a
-	  critical bugfix (2013-4-18).
-	* drivers/mtd/ramtron.c:  Extended to support the FM25V01 device.
-	  Contributed by Lorenz Meier (2013-4-18).
-	* sched/task_deletecurrent.c and task_exit.c, arch/*/up_exit.c:
-	  Renamed task_deletecurrent() and task_exit() since it really
-	  handles the architecture independent part of _exit().  _exit()
-	  is used internally, but if it is called from the user, it should
-	  unregister any atexit() or on_exit() functions (2013-4-18).
-	* tools/kconfig2html.c: This is the beginning of a tool to
-	  replace the hand-generated documentation of the NuttX configuration
-	  variables with auto-generated documentation.  The initial checkin
-	  is an incomplete, poorly structured prototype that I hope to
-	  evolve into a useful tool (2014-4-20).
-	* libc/string/lib_strchr.c:  strchr(str, '\0') should return a
-	  pointer to the end of the string, not NULL.  From Petteri
-	  Aimonen (2014-4-22).
-	* fs/fat/fs_writefat.c: mkfatfs was writing the boot code to the
-	  wrong location.  From Petteri Aimonen (2014-4-22).
-	* Documentation:  The NuttX documentation now expects to find an
-	  auto-generated version of the configuration variable documentation
-	  at Documentation/NuttXConfigVariables.html (2014-4-22).
-	* arch/arm/src/lpc17xx/lpc17_adc.c:  Only one ADC pin was configured.
-	  Need to configure all that are in the ADC0 set.  From MKannan
-	  (2014-4-23).
-	* configs/zkit-arm-1769/src:  ADC and SPI/USB MSC updates from
-	  MKannan (2014-4-23).
-	* arm/src/armv7-m/ram_vectors.h and arm/src/armv7-m/up_ramvec_initialize.c:
-	  Fixes to RAM vector logic from Paul Y. Zhang (2014-4-23)
-	* tools/kconfig2html.c:  Improve behavior of Expand/Collapse
-	  Table of Contents; Handle errors in parsing of strings and in
-	  some uninitialized variables.  Add an option to use jQuery.
-	* tools/mkconfigvar.sh: Fix make target (2014-4-23).
-	* sched/exit.c, pthread_exit.c, task_exit.c, task_delete,c and
-	  task_exithook.c:  For pthread_exit(), move some logic to an early
-	  point in the exit sequence where the task may need to block.  Add
-	  conditional logic in the lower end of the eixt logic kicked off by
-	  _exit() to prohibit blocking after the task has been torn down and is
-	  no longer cabable of blocking (2014-4-23).
-	* arch/arm/src/common/up_initialize.c: Add missing registration
-	  of /dev/zero.  Registration of /dev/null should depend upon
-	  conditional compilation.  From Ken Pettit (2014-4-24).
-	* arch/*/src/common/up_initialize.c:  Same change required to other
-	  architectures (2014-4-24).
-	* arch/arm/src/kl/kl_clockconfig.c and configs/freedom-kl25z/include/board.h:
-	  Modify out PLL configuration so that it uses the values in
-	  board.h;  Fix PLL settings in board.h so that the correct core
-	  and bus clock frequencies are generated. (2014-4-24).
-	* arm/src/kl/chip/kl_memorymap.h, kl_sim.h, andkl_uart.h:  Correct some
-	  register definitions (2014-4-25).
-	* arch/arm/src/kl/Kconfig, kl_lowputc.c, kl_serial.c, and kl_config.h:
-	  No UART3-5 (2014-4-25).
-	* arch/arm/src/kl/kl_serial.c:  Various fixes to various files in the
-	  KL architecture directory as need to get the interrupt-driven
-	  serial driver to work.  The Freedom KL25Z NSH configuration now
-	  works (2014-4-25).
-	* include/nuttx/assert.h, arch/*/src/*/up_assert.c, and other file:
-	  Remove up_assert_code().  While asserting with an encoded value
-	  could be a good feature, the codes have not be well utilized nor
-	  documented.  Give that situation it is better to remove the API
-	  and reduce the footprint a little (2014-4-25).
-	* drivers/serial/Kconfig and arch/*/src/*/*_serial.c:  Add
-	  compilation so that the useless TIOCSERGSTRUCT ioctl logic
-	  is not build unless CONFIG_DEBUG and CONFIG_SERIAL_TIOCSERGSTRUCT
-	  are defined.
-	* sched/task_delete.c and task_terminate.c:  Most task_terminate()
-	  out of task_delete.c into its own C file.  This should prevent
-	  dragging task_delete() into the link when it is never called.
-
-6.28 2013-06-14 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lpc17xx/lpc17_i2c.c:  Interrupts were not being
-	  re-enabled in the I2C initialization function (2013-4-30).
-	* net/sendto.c:  Added skeleton of implementation of send timeouts
-	  for UDP.  However, this functionality really does not make
-	  sense, so it is disabled in the code (2013-4-30).
-	* drivers/mtd/mtd_partition.c:  Support capability to clone one
-	  MTD driver into several, MTD partition drivers, each of which
-	  can manage a sub-region of the FLASH (2013-4-30).
-	* configs/sim/nxffs:  Converted to use the kconfig-frontends
-	  tools (20130-4-30).
-	* configs/sim/mtdpart:  A new configuration to test MTD
-	  partitions (2013-4-30).
-	* configs/sim/mkroe-stm32f4:  Support for the MikroElektronika
-	  Mikromedia for STM32F4 development board (from Ken Pettit, 2013-4-30).
-	* fs/smartfs:  Add Ken Pettit SMART FS (2013-4-30).
-	* include/nuttx/mtd.h and most MTD drivers:  Add support for
-	  (optional) method to perform byte oriented writes if so configured
-	  (2013-5-1).
-	* arch/arm/src/kl/chip/kl25z128_pinmux.h:  Corrections fo the
-	  pin multiplexing definitions from Alan Carvalho de Assis
-	  (2013-5-2).
-	* drivers/mtd/mtd_partition.c:  Fix a few bugs and add support for the
-	  (option) byte write method (2013-5-3).
-	* arch/arm/src/kl:  Repartitioning of definitions in header files
-	  from Alan Carvalho de Assis (2013-5-3).
-	* drivers/mtd/smart.c, fs/smart, and other files:  SMART file system
-	  now makes use of the MTD byte write capabilities when present (from
-	  Ken Pettit, 2013-5-3).
-	* drivers/mtd/m25px.c:  Some rearchitecting to use the byte write
-	  capability (when possible) and to use 4KB sectors for the erase block
-	  size when the part supports it (Ken Pettit, 2013-5-3).
-	* configs/pirelli_dpl10: Adds a configuration for the pirelli phone
-	  (from Craig Comstock via Alan Alan Carvalho de Assis, 2013-5-3).
-	* arch/arm/src/calypso:  Fix some compilation warnings (2013-5-5).
-	* configs/pirelli_dpl10/nsh_highram:  Converted to use the
-	  kconfig-frontends tools (2013-5-5).
-	* drivers/lcd/mio283qt2.c:  LCD was not being selected in setpower
-	  method (also not being deselected in hwinitialize function)
-	  (2013-5-6).
-	* arch/arm/src/kl/kl_gpio.c and .h, configs/freedom-kl25z/src/freedom-kl25z.h,
-	  and configs/freedom-kl25z/src/kl_led.c:  Fixes LEDs on the Freedom KL25Z
-	  board (2013-5-6).
-	* arch/arm/src/kinetis/kinetis_pin.c and arch/arm/src/kinetis/kinetis.h:
-	  The Kinetis GPIO logic had some of the same issues as did the
-	  Kinetis L (2013-5-6).
-	* arch/arm/src/stm32/stm32_idle.c: Add an option to conditionally disable
-	  the "wfi" sleep mode.  This is needed with certain JTAG debuggers to
-	  to prevent the debug session from begin disconnected.  From Ken Pettit
-	  (2013-5-7).
-	* configs/mikroe-stm32f4/fulldemo/, nx/, nxlines/, nxtext/:  Add more
-	  configurations for the Mikroelektronika Multimedia STM32-M4 board.
-	  From Ken Pettit (2013-5-7).
-	* configs/mikroe-stm32f4/src/up_mio283qt2.c and other files:  Integrate the
-	  MIO283QT2 display on the Mikroelektronika Multimedia STM32-M4 board.
-	  From Ken Pettit (2013-5-7).
-	* arch/arm/src/lpc17xx/lpc17_i2c.c:  Fix for lpc17xx i2c single byte read
-	  timeout error problem from M.Kannan (2013-5-8).
-	* arch/arm/src/stm32/stm32_adc.c:  Typo in F2/F4 specific logic:  ACD_
-	  instead of ADC_.  From Ken Pettit (2014-5-8).
-	* configs/olimex-lpc1766stk/tools:  Tweaks to support OpenOCD-0.70
-	  (2013-5-10).
-	* configs/mikroe-stm32f4:  Changes to get the Mikroelektronika MultiMedia
-	  STM32 F4 touchsceen working.  From Ken Pettit (2013-5-11).
-	* configs/*/nxwm:  Default priorities for NxWidget and NxWM threads
-	  should be 100, not 50, to be consistent with other default priorities.
-	* configs/hymini-stm32v/buttons, nsh, and nsh2:  Configurations converted
-	  to use the kconfig-frontends tools (Laurent Latil, 2013-5-14)
-	* configs/hymini-stm32v/src:  Converted to use the common SSD1289 driver
-	  (Laurent Latil, 2013-5-14)
-	* configs/hymini-stm32v/ostest and usbnsh:  Add OS test and USB/NSH
-	  configurations (Laurent Latil, 2013-5-14).
-	* configs/hymini-stm32v/src/up_nsh.c:  Add support for the card detect
-	  (CD) interrupt (Laurent Latil, 2013-5-14).
-	* configs/hymini-stm32v/src/nx and nxlines:  Removed these configurations
-	  (Laurent Latil, 2013-5-14).
-	* arch/arm/src/stm32/chip/stm32f10xx_dma.h:  Fix some bad DMA register
-	  definitions.  From Laurent Latil (2013-5-15).
-	* configs/hymini-stm32v:  Enable SDIO in nsh2 configuration; remove
-	  warning from src/up_ssd1289.c.  From Laurent Latil (2013-5-15).
-	* configs/hymini-stm32v/src/up_r61505u.c:   Support for the R65105-
-	  based LCD that comes with some HY-Mini STM32v board.  From Christian
-	  Faure (2013-5-16).
-	* syscall/syscall_lookup.h:  Missing underscore character in SYS_onexit.
-	  Reported by Ken Pettit (2013-5-17).
-	* nuttx/syscall/syscall.csv:  Type of first parameter of on_exit() is
-	  wrong. Reported by Ken Pettit (2013-5-17).
-	* configs/mikroe-stm32f4/kernel/, kostest/ and scripts/:  Add kernel build
-	  support and kernel mode OS test example for the MikroElektronkia
-	  MultiMedia STM32 M4 board.  From Ken Pettit (2013-5-17).
-	* arch/arm/include/stm32/chip.h and arch/arm/src/stme32/chip/stm32l15xxx_pinmap.h:
-	  Beginning of support for the STM32L15X family (2013-5-18).
-	* arch/arm/include/stm32/stm32l15xxx_irq.h and arch/arm/src/stm32/chip/stm32l15xxx_vectors.h:
-	  Support for STM32L15X interrupt vectors (2013-5-18).
-	* arch/arm/src/stm32/chip/stm32l15xxx_gpio.h and related STM32 GPIO files:
-	  Add GPIO support for the STM32L215X (2013-5-18).
-	* arch/arm/src/stm32/chip/stm32l15xxx_memorymap.h: STM32L215X memory map
-	 (2013-5-18).
-	* arch/arm/src/stm32/chip/stm32_pwr.h, stm32fl15xxx_rcc.h, and stm32l15xxx_syscfg.h:
-	  More updates for the STM32L152 (2013-5-19).
-	* configs/stm32ldiscovey: Configuration for the STM32L-Discovery board.
-	  Still does not build on initial check-in (2013-5-19)
-	* STM32L15X:  Add DMA and UART start.  Correctly initialize the heap
-	  (2013-5-19).
-	* arch/arm/src/stm32/stm32l15xxx_rcc.c chip/stm32_flash.h:  Add RCC PLL
-	  and FLASH configuration logic for the STM32L152X (2013-5-19).
-	* include/nuttx/usb/audio.h:  Typo- and bug-fixes from Ken Pettit
-	  (2013-5-19)
-	* audio/, drivers/audio, include/nuttx/audio.h:  Add a new audio subsystem
-	  and VS1053 driver to NuttX.  Contributed by Ken Pettit (2013-5-19).
-	* configs/miroe-stm32f4/:  Add audio logic to NSH configuration.  From Ken
-	  Petty (2013-5-19).
-	* nuttx/arch/arm/src/lm/chip/lm_flash.h and nuttx/arch/arm/src/lm/lm_flash.c:
-	  Add support for TI/Stellaris internal FLASH MTD driver.  From Max
-	  Holtzberg (2013-5-20).
-	* arm/src/stm32/chip/stm32l15xxx_vectors.h:  After correcting errors in the
-	  vector definition file, the STM32L-Discovery NSH port now seems to be
-	  fully functional.  Also fixed an error that was causing the LEDs to be
-	  controlled incorrectly (2013-5-21).
-	* arch/arm/src/stm32/chip/stm32_lcd.h: Add definitions for STM32L15X
-	  segment LCD (2013-5-21).
-	* configs/lm3s6965-ek/discover: Add an example configuration for UDP
-	  discovery tool on the lm3s6965-ek board.  From Max Holtzberg
-	  (2013-5-21).
-	* audio/, drivers/audio, include/nuttx/audio:  Added a callback interface
-	  to the Audio upperhalf driver for dequeueing, reporting async events,
-	  etc. Also included is some initial work for the VS1053 driver.  From
-	  Ken Pettit (2013-5-21).
-	* include/nuttx/audio/audio.h:  Moved from include/nuttx/ to include/nuttx/audio.
-	  (2013-5-21).
-	* configs/lm3s6965-ek/tcpecho: This configuration builds the simple TCP
-	  echo example based on W.Richard Steven UNIX Programming book to ensure
-	  correct usage of the socket API. Contributed by Max Holtzberg (2013-5-22).
-	* configs/stm32ldiscovery/src/stm32_lcd.c:  Framework for support of the
-	  STM32L-Discovery's segment LCD (2013-5-22).
-	* fs/fs_poll.c:  Poll setup/teardown logic should ignore invalid (i.e.,
-	  negative) file descriptors.  Max Holtzberg (2013-5-23).
-	* net/net_poll.c: When readahead data is available, the network poll
-	  logic should set POLLIN (or POLLRDNORM), not POLLOUT.  Max Holtzberg
-	  (2013-5-23)
-	* fs/fs_poll.c:  Actually, it should also set revents == 0. (2013-5-23).
-	* libc/misc/lib_slcdencode.c and lib_slcddecode.c:  Add logic to marshal
-	  and serialize special SLCD intermixed with normal ASCII data (2013-5-23)
-	* configs/stm32ldiscovery/src/stm32_lcd.c:  STM32L-Discovery's segment LCD
-	  is code complete but completely untested (2013-5-23).
-	* include/nuttx/fs/ioctl.h, include/nuttx/lcd/slcd_codec.h, and
-	  configs/stm32ldiscovery/src/stm32_lcd.c:  Add SLCD ioctl commands to get
-	  SLCD geometry, set bars, and manage contrast (2013-5-23).
-	* configs/stm32ldiscovery/src/stm32_usb.c:  This file and all references
-	  to USB removed for the STM32L-Discovery.  While the chip supports a
-	  USB device, the board does not (2013-5-24).
-	* arch/arm/src/stm32/stm32_lse.c:  Add support for the STM32L CSR register
-	  and for the LSE LCD clock source (2013-5-24).
-	* The STM32L-Discovery segment LCD is now functional and the README file
-	  includes instructions for adding the apps/examples/slcd segment LCD
-	  test as an NSH "built-in" command (2013-5-24).
-	* configs/pcblogic-pic32mx:  Converted all configurations to use the
-	  kconfig-frontends tool (2013-5-25).
-	* configs/pcblogic-pic32mx/src:  Renamed files using pic32mx_ vs up_
-	  prefix.  Enable building of LCD1602 LCD (2013-5-25).
-	* configs/pcblogic-pic32mx/src/pic32mx_lcd1602.c: Now uses SLCD CODEC
-	  (2013-5-25)
-	* configs/stm32ldiscovery/src/stm32_lcd.c: Now supports ioctl to get
-	  cursor position (2013-5-25).
-	* include/nuttx/lcd/slcd_ioctl.h:  Moved ioctls commands and structures
-	  from slcd_codec.h (2013-5-25)
-	* libc/misc/lib_slcdencode.c and lib_slcddecode.c:  Several encoding
-	  and decoding bug fixes (2013-5-26)
-	* configs/sure-pic32mx:  Converted all configurations to use the
-	  kconfig-frontends tools, cleaned up the directory structure and
-	  naming to match some of the more recent configurations, and added
-	  a segment LCD driver for the board.  The initial checkin of the
-	  LCD driver is just a clone of configs/pcblogic-pic32mx/src/pic32mx_lcd1602
-	  and it not yet expected to be functional (2013-5-26).
-	* include/nuttx/lcd/slcd_ioctl.h and all SLCD drivers:  Rename geometry
-	  structure to attributes;  Move MAX contrast to attributes.  Add
-	  attribute and ioctl commands to get and set LCD brightness (2013-5-27).
-	* configs/sure-pic32mx/pic32mx_lcd1602.c:  This driver appears to
-	  fully functional (at least to the extent that it has been tested)
-	  (2013-5-27).
-	* arch/mips/src/pic32mx/pic32mx-usbdev.c:  Fix NULL packet handling in
-	  the PIC32 USB device driver.  Without this fix the CDC/ACM driver
-	  cannot be used reliably with the PIC32 USB.  With this change the
-	  configs/sure-pic32mx/usbnsh configuration works great (2013-5-28).
-	* configs/sure-pic32mx/src/pic32mx_nsh.c:  The NSH configurations will
-	  support the USB monitor applications (2013-5-28).
-	 nuttx/arch/arm/include/stm32/chip.h, src/stm32/Kconfig, src/stm32/chip.h,
-	  and src/stm32/chip/stm32f103c_pinmap.h: STM32F103C4 and F103C8 chip
-	  support from Laurent Latil (2013-5-28)
-	* configs/stm32_tiny: Add support for the STM32 Tiny development board
-	  based on the STM32 F103C8T6 MCU (2013-5-28).
-	* arch/arm/src/stm32/stm32_usbdev.c:  Fix an error in NULL packet
-	  handling:  If the NULL-packet needed flag ever gets set, then
-	  it is not cleared and infinite NULL packets result.  This only
-	  effects the CDC/ACM class and was the cause of the failure of
-	  configs/stm32f3discovery/usbnsh configuration which works great
-	  after this change (2013-5-29).
-	* drivers/usbdev/cdcacm.c and pl2303.c and include/nuttx/usb/cdcacm.h:
-	  Change the default IN request buffer size from 64 to 96.  This will
-	  avoid requests of exactly MAXPACKET size and, hence, avoid so many
-	  NULL packets.  Also, fix the OUT request buffers size to exactly
-	  the max packet size.  It cannot be any other size (2013-5-29).
-	* .gitignore:  Clean-up of most all .gitignore files:  Make scope of
-	  ignore to be only the current directory; Ignore .dSYM files in
-	  directories where .exe's may be build.  Also, in Makefiles,
-	  clean .dSYM files in directories where .exe may be built (2013-5-30).
-	* drivers/wireless/nrf24101.c/.h and include/nuttx/wireless/nrf24101.h:
-	  Add new driver for the wireless nRF24L01+ transceiver.  From Laurent
-	  Latil (2013-6-1).
-	* drivers/wireless/cc1101:  Move files in the cc1101 up one directory.
-	  From Laurent Latil (2013-6-1).
-	* configs/stm32_tiny: Fix nRF24L01+ driver integration for the STM32
-	  Tiny.  From Laurent Latil (2013-6-01).
-	* configs/sam3u-ek:  All remaining configurations changed to use
-	  the kconfig-frontends tools (2013-6-2).
-	* arch/arm/src/sam3u/chip:  All SAM3U register definition files moved
-	  to this subdirectory.  Naming of registers changed from SAM3U_ to
-	  just SAM_.  This is in preparation for a SAM4L port (2013-6-2).
-	* arch/arm/src/sam3u:  Renamed files to sam_* vs. sam3u_*.
-	  Eliminated sam3u_internal.h; instead uses individual header
-	  files for each SAM interface block (2013-6-2).
-	* arch/arm/src/stm32/stm32f20xxx_rcc.c and stm32f40xxx_rcc.c, and
-	  configs/mikroe-stm32f4/src/up_clockconfig.c.  Correct some bad
-	  conditional compilation (CONFIG_ missing from setting name).  This
-	  affects some STM32 FLASH pre-fetch settings.  From Lorenz Meier
-	  (2013-6-2).
-	* arch/arm/include/sam34 and arch/arm/src/sam34:  The old sam3u/
-	  directories were renamed sam34/ to make room in the namespace for
-	  the SAM4L (2013-6-2).
-	* libc/stdio/lib_dprintd.c and lib_vdprintf.c:  Add dprintf() and
-	  vdprintf() (the latter from Andrew Tridgell, 2013-6-2).
-	* sched/sem_holder.c:  Modify assertion that is reported to cause
-	  false alarm assertions (2013-6-2).
-	* arch/arm/include/sam34/sam4l_irq.h and
-	  arch/arm/src/sam34/chip/sam4l_memorymap.h: Add interrupt and memory
-	  map definitions for the AT91SAM4L (2013-6-3).
-	* arch/arm/src/sam34/chip/sam4l_vectors.h and arm/src/sam34/sam_vectors.S:
-	  Add interrupt vector support for the SAM4L family (2013-6-3).
-	* arch/include/sam34/chip.h:  Add chip definitions for the SAM4L
-	  family (2013-6-3).
-	* configs/sam4l-xplained:  A partial configuration that will (eventually)
-	  support the SAM4L Xplained Pro development board (2013-6-3).
-	* arch/arm/src/sam34/chip/sam4l_pinmap.h:  Initial cut as SAM4L
-	  pin mapping (2013-6-3).
-	* arch/arm/src/stm32/stm32*_dma.*:  Add a new interface function,
-	  stm32_dmacapable() that can be used to determine if DMA is
-	  possible from the specified memory address.  From Petteri Aimonen
-	  (2013-6-4).
-	* arch/arm/src/stm32/stm32_spi.c:  If CONFIG_STM32_DMACAPABLE is
-	  defined, use stm32_dmacapable() to determine if it is possible
-	  to perform DMA from the specified address.  This change is
-	  important for the STM32 F4 which may have SPI data buffers
-	  allocated on the stack in CCM memory which cannot support the
-	  DMA.  From Petteri Aimonen (2013-6-4).
-	* nuttx/arch/arm/src/sam34/sam4l_gpio.h: Created GPIO driver
-	  header file for the SAM4L.  Also renamed the SAM3U header
-	  file to sam3u_gpio.h (2013-6-4).
-	* nuttx/arch/arm/src/sam34/sam4l_gpio.c: Created GPIO driver for
-	  the SAM4L (2013-6-4).
-	* nuttx/configs/sam4l-xplained/src/sam_userleds.c:  Added.
-	  (2013-6-4).
-	* configs/sam4l-xplained/src/sam_userleds.c:  Add application
-	  LED interfaces (2013-6-5).
-	* arch/arm/src/sam34/sam4l_gpio.c and arch/arm/src/sam34/chip/sam4l_gpio.h:
-	  Fix GPIO port address; fix compilation errors (2013-6-5).
-	* arch/arm/src/sam34/chip/sam4l_flashcalw.h:  Add header file
-	  for SAM4L FLASH and PICOCACHE definitions (2013-6-5).
-	* arch/arm/src/sam34/chip/sam4l_pm.h:  Add header file for SAM4L
-	  Power Management.  Leveraged from AVR32 (2013-6-5).
-	* arch/arm/src/sam34/sarm4l_clockconfig.c:  SAM4L clock configuration
-	  logic (leveraged from AVR32).
-	* nuttx/arch/arm/src/sam34/sam4l_periphclks.c/h:  Add common
-	  logic to enabled/disable SAM4L peripheral clocking (2013-6-5).
-	* nuttx/arch/arm/src/sam34/chip/sam4l_bpm.h and sam4l_scif.h:  Add
-	  register definitions for the SAM4L BMP and SCIF blocks (2013-6-6).
-	* nuttx/arch/arm/src/sam34/sam4l_clockconfig.c:  Now selects an
-	  optimal power scaling mode (2013-6-6).
-	* nuttx/arch/arm/src/stm32/stm32_serial.c and nuttx/include/termios.h:
-	  Change for hardware flow control support for STM32. It also fixes
-	  incorrect operation of USART2 and UART5 in current master.  Submitted
-	  by Lorenz Meier but includes changes by Mike Smith (2013-6-6).
-	* nuttx/arch/arm/src/stm32/stm32_otgfshost.c:  A backward conditional
-	  prevent detection of disonnection events.  Reported by Scott (2013-6-6).
-	* nuttx/arch/arm/src/sam34/chip/sam4l_bscif.h: Add registers definitions
-	  for the SAM4L BSCIF module (2013-6-6).
-	* nuttx/arch/arm/src/sam34/sam4l_clockconfig.c and chip/sam4l_wdt.h:
-	  Finally finished the SAM4L clock configuration logic; Added a
-	  WDT register definition header file (2013-6-8).
-	* nuttx/arch/arm/src/sam34/chip/sam4l_usart.h and sam4l_picouart.h:
-	  Add UART/USART register definition files for the SAM4L (2013-6-8).
-	* arm/src/sam34/chip/sam3u_periphclks.h:  More macros and definitions
-	  to generalize peripheral clocking and to hide differences between
-	  the SAM3U and the SAM4L (2013-6-8).
-	* configs/sam4l-xplained/ostest:  The SAM4L now passed the OS test
-	  (2013-6-9).
-	* configs/sam4l-xplained/nsh:  Added an NSH configuration for the
-	  SAM4L Xplained Pro board (2013-6-9).
-	* configs/sam4l-xplained/src/sam_cxxinitialize.c:  Added C++ support
-	  to the SAM4L Xplained Pro board configuration (2013-6-9).
-	* arm/src/sam34/chip/sam_irq.c:  Extend IRQ support to handle the
-	  larger number of NVIC interrupts used by the SAM4L (2013-6-9).
-	* arch/arm/src/sam45/chip:  Beginning updates of SAM3U header files
-	  to include support for the SAM4S: WDT, SUPC, EEFC, MATRIX, PMC,
-	  UARTs, USARTs, HSMCI, SPI (2013-6-10).
-	* arch/arm/src/chip/sam4s_memorymap.h, sam4s_irq.h, and sam4s_vectors.h:
-	  Add SAM4S memory map and interrupt definitions (2013-6-10)
-	* configs/sam4s-xplained:  Add framework for the SAM4S Xplained board.
-	  There is not much there on initial checkin (2013-6-10).
-	* arch/arm/src/sam34: SAM3S support: GPIO, chip characteristics,
-	  peripheral Kconfig (2013-6-11).
-	* arch/arm/src/sam34/chip/sam4s_pinmap.h:  Add SAM4S pin configuration
-	  definitions (2013-6-11).
-	* arch/arm/src/sam34/sam4s_periphclks.h:  Add macros to manage SAM4S
-	  peripheral clocks (2013-6-11).
-	* configs/sam4s-xplained: Configuration builds error-free (2013-6-11).
-	* configs/sam4s-xplained/nsh:  Added an NSH configuration for the
-	  SAM4S Xplained board.  Both the OS test and the NSH configurations
-	  no execute error-free.  Delay loops calibrated for both the SAM4L
-	  and SAM4S boards (2013-6-12).
-	* Standardize on CONFIG_NSH_BUILTIN_APPS.  Remove all other variants
-	  of the build-as-an-NSH-application configuration settings
-	  (2013-6-12).
-	* arch/arm/src/sam34/sam_periphclks.h:  A header file that just
-	  includes the right header file.  This cleans up the messy logic
-	  in all of the C files and puts the mess in one place (2013-6-12).
-	* arch/arm/src/arm*/Toolchain.mk, Kconfig (and lots of configuration
-	  files):  Add support for a generic Windows EABI toolchain (2013-6-13).
-
-6.29 2013-07-31 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/sam34/chip/sam4l_pinmap.h: Change naming of some pin
-	  configurations to match names used with other SAM part (2013-6-15).
-	* arch/arm/src/sam34/sam4l_clockconfig.c: Corrected some typos
-	  (2013-6-15).
-	* configs/sam4l-xplained/src/sam_buttons.c: Eliminate a warning
-	  (2013-6-15).
-	* configs/sam4l-xplained/src/sam_mmcsd.c, sam_nsh.c, sam_spi.c,
-	  sam3u-ek.h, Kconfig, Makefile, sam4l-xplained.h,
-	  configs/sam4l-xplained/README.txt, and
-	  configs/sam4l-xplained/include/board.h:  Add support for the SPI-
-	  based SD card on the I/O1 module (2013-6-15).
-	* arch/arm/src/sam34/sam_spi.c:  Re-architect the SAM3/4 SPI driver
-	  so that is it compatible with the SPI drivers of other MCUs
-	  (2013-6-16).
-	* configs/sam3u-ek/src/up_touchscreen.c and configs/sam4l-xplained/src/sam_mmcsd.c:
-	  Changed needed because of the above change to the SAM3/4 SPI
-	  interface (2013-6-16).
-	* drivers/input/ads7843e.c:  Remove the wait for the touchscreen busy
-	  bit.  I don't see the busy bit changing on the SAM3U-EK board.  But
-	  maybe it is not supposed to.  From my reading of the ADS7843 spec, it
-	  would not be appropriate to wait for the BUSY bit to de-asserted
-	  anyway (since it is only de-asserted when we read the data)
-	  (2013-6-16).
-	* configs/sam3u-ek/src/up_touchscreen.c: Fix polarity of the /PENIRQ
-	  signal (it is active low) (2013-6-16).
-	* configs/sam3u-ek/include/board.h:  The SAM3U-EK board now runs at
-	  96MHz.  This might have broken some things? (2013-6-17).
-	* drivers/mmcsd/mmcsd-spi.c:  Driver need to make sure that the SPI mode
-	  and data width are correct (2013-6-17).
-	* arch/arm/src/kinetis/kinetis_tsi.h:  Corrections to the Kinetis
-	  (2013-6-18)
-	* arch/arm/src/sam34/sam_spi.c:  Fix SPI mode setting.  In the SAM3/4
-	  family, the clock phase control (CPHA) is inverted (NPHA) (2013-6-18).
-	* arch/arm/src/kl/chip/kl_tsi.h: Freescale KL25Z TSI register
-	  definitions from Alan Carvalho de Assis (2013-6-18).
-	* configs/freedom-kl25z/src/kl_tsi.c:  Example TSI driver for the
-	  Freedom KL25Z board from Alan Carvalho de Assis (2013-6-18).
-	* arch/arm/src/sam34/sam_spi.c:  Correct an incorrect pointer test.
-	  Was checking if the wrong pointer was NULL (2013-6-18).
-	* arch/arm/src/kl/kl_spi.c and chip/kl_spi.h:  Add SPI driver and
-	  register definitions for the Freescale KL25Z (2013-6-19).
-	* arm/src/sam34/chip/sam4l_lcdca.h:  Register definition file for
-	  the SAM4L LCD peripheral (2013-6-19).
-	* arm/src/sam34/chip/sam_spi.h:  SPI register definition file updated
-	  to include a few differences for the SAM4L (2013-6-19)
-	* arm/src/sam34/chip/sam4l_pdca.h: Add SAM4L PDCA register definition
-	  file; also renamed sam_dmac.* files to sam3u_dmac.* to identify
-	  them as SAM4U/4S only files (2013-6-19).
-	* configs/freedom-lk25z/src/kl_spi.c:  Add the framework for
-	  controlling SPI-related discrete inputs and outputs.  Taken from
-	  work by Alan Carvalho de Assis (2013-6-20).
-	* arch/arm/src/kl/kl_dumpgpio.c:  Now compiles (2013-6-20).
-	* configs/:  Several defconfig files were changed that had
-	  CONFIG_HAVE_CXXINITIALIZE=y.  Because of recent changes to
-	  apps/examples, these configurations may need to have
-	  CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y so that they behave as they did
-	  before, i.e., so that C++ initializers will be called when NSH starts
-	  up (2013-6-21).
-	* configs/sam4l-xplained/src/sam_slcd.c:  Beginning of a driver for the
-	  LED1 segment LCD module.  This driver is incomplete on initial check-
-	  in (2013-6-21).
-	* drivers/net/enc28j60.c:  Change buffer ordering to work around Errata
-	  #5.  From Dave (ziggurat29, 2013-6-22).
-	* configs/sam4l-xplained/src/sam_slcd.c:  LED1 segment LCD module is now
-	  functional (2013-6-23).
-	* drivers/lcd/ssd1306.c and include/nuttx/lcd/ssd1306.h.  Renamed
-	  ug-2864hsweg01.c and .h to ssd1306.c and .h.  Extended to support the
-	  UG-2832HSWEG04 which is very similar and also based on the SSD1306
-	  controller (2013-6-23).
-	* configs/sam4l-xplained/src/sam_ug2832hsweg04.c: Add support for the
-	  UG-2832HSWEG04 OLED on the SAM4L Xplained Pro's OLED1 module
-	  (2013-6-23).
-	* include/debug.h:  Added macro DEBUGPANIC for forces crashes when debug
-	  is enabled.
-	* drivers/lcd/ssd1306.c:  Driver now appears to be function for the
-	  UG-2832HSWEG04 in landscape mode (2013-6-24).
-	* drivers/lcd/ug-2864ambag01.c and ug-9664hswag01.c:  Add/updated
-	  support for reverse portrait mode from lessons learned with the
-	  UG-2832HSWEG04.  Untested changes! (2013-6-24).
-	* arch/arm/src/stm32/stm32_ccm.c and .h:  Add support for a separate CCM
-	  heap.  This may be useful for segregating allocations for CCM (which
-	  cannot be used for DMA) from other allocations (that may be used used
-	  for DMA) (2013-6-25).
-	* arch/arm/src/sam32/sam3u_gpio.h:  Correct configuration of PIO pins
-	  for SAM4S B and C peripherals (2013-6-26)
-	* configs/sam4s-xplained/src/sam_sram.c:  Added support for on-board
-	  1MB SRAM (2013-6-26).
-	* arch/arm/include/sam34/chip.h and sam3x_irq.h:  Add support for
-	  SAM3X and SAM3A chips (2013-6-26).
-	* arch/arm/src/sam34/chip/sam3x_vectors.h:  Add support for SAM3X/3A
-	  interrupt vectors (2013-6-26).
-	* arch/arm/src/sam34/sam3x_periphclks.h:  Add peripheral clock
-	  controls for the SAM3X/3A (2013-6-26).
-	* arch/arm/src/sam34/chip/sam3x_memorymap.h:  Add SAM3X/3A memory map
-	  (2013-6-26).
-	* arch/arm/src/sam34/chip/sam3x_pinmap.h:  Add SAM3X/3A pin
-	  multi-plexing definitions (2013-6-26).
-	* arch/arm/src/sam34/sam3x_gpio.h:  Add SAM3X/3A gpio encoding
-	  macros.  These differ from the SAM3U only in because of the
-	  6 PIOs:  PIOA-PIOF (2013-6-26).
-	* configs/arduino-due:  This is an empty directory now with only
-	  a README file in it but this directory will eventually hold a port
-	  for the Arduino Due (2013-6-26).
-	* arch/arm/src/sam34/Kconfig:  Add SAM3X/3A peripherals to the SAM3/4
-	  configuration logic (2013-6-26).
-	* arch/arm/src and include/ and configs/sam*/:  Large rename of all
-	  references to SPI with SPI0.  This is because all other SAMs have
-	  only SPI but the 3X/3A have SPI0 and SPI1 (2013-6-26).
-	* configs/arduino-due:  Complete the basic board configuration and
-	  integrate this into the configuration and build system.  The Arduino
-	  Due is now ready to begin test (2013-6-17).
-	* configs/arduino-due/nsh:  Add an NSH configuration for the Arduino
-	  Due.  Both the OS test and NSH configuration are now functional
-	  (2013-6-28).
-	* configs/arduino-due/src:  Add support for the "L" LED (2013-6-28).
-	* arch/arm/src/sam34/sam_allocateheap.c:  Clocking must be applied
-	  to the SMC module for the 3X and 3A family in order for the NFC
-	  SRAM to be functional (2013-6-28).
-	* arch/arm/src/sam34/sam3u_gpio.c:  Need to disable write
-	  protection before configuring PIO pins.
-	* configs/sam3u-ek/nsh:  The touchscreen is now functional.  The above
-	  fix to the sam3u_gpio.c write protection also fixed the touchscreen
-	  problem (2013-6-28).
-	* confgis/sam3u_ek/nxwm:  Created a configuration for the NxWM
-	  window manager for the SAM3U-EK board (2013-6-29).
-	* drivers/spi and include/nuttx/spi:  New sub-directories to hold
-	  SPI-related files.  includes/nuttx/spi.h moved to include/nuttx/spi/.;
-	  SPI-related Kconfig info moved from drivers/Kconfig to drivers/spi/kconfig
-	  (2013-7-1).
-	* drivers/spi/spi_bitbang.c and include/nuttx/spi/spi_bitbang.h:  Add
-	  support for a generic bit-bang SPI driver.  This checkout is the
-	  common upper-half logic.  Still missing the lower half (2013-7-1).
-	* include/nuttx/spi/spi_bitbang.c:  This is the common lower-half bit-
-	  bang SPI logic (2013-7-1).
-	* configs/arduino-due/src/sam_nsh.c and sam_mmcsd.c:  Add NSH customize
-	  initialization.  If so configured, initialize the SPI bit bang
-	  interface to the MMC/SD slot on the ITEAD shield (2013-7-1).
-	* fs/fs_mount.c:  Fix compilation error if no file systems are enabled:
-	  Change error to ERROR (2013-7-3).
-	* arch/arm/src/sam34/sam_gpioirq.c:  Fix some errors for interrupts
-	  on ports D-F (2013-7-3).
-	* /drivers/usbdev/composite.c: Fix a typo in the composite device
-	  driver unitialization logic.  DEV1 should be DEV2 in one case
-	  (2013-7-4).
-	* arch/arm/src/sam34/sam3u_gpio.c:  sam_configgpio() must protect
-	  against re-entrancy (2013-7-5).
-	* libc/misc/lib_crc16.c and include/crc16.h:  Add CRC16 support
-	  (2013-7-7).
-	* arch/arm/src/stm32/stm32_otgfsdev.c:  SourceForge bug #16:  Fix
-	  to the endpoint allocation logic.  Apparently the same endpoint can
-	  be allocated as both an IN or an OUT endpoint.  The existing
-	  implementation only supported one allocation, either IN or OUT.  This
-	  resulted in failures to allocate endpoints when used with the CDC/ACM +
-	  MSC composite driver (From Chia Cheng Tsao, 2013-7-8).
-	* arch/arm/src/stm32/stm32_sdio.c:  SourceForge bug #17:  Add
-	  support for the data block end (DBCKEND) interrupt to terminate
-	  transfers (From Chia Cheng Tsao, 2013-7-8)
-	* drivers/rwbuffer.c: SourceForge bug #17: Correct typos that can cause
-	  failures in some configurations (From Chia Cheng Tsao, 2013-7-8).
-	* include/nuttx/usb/usbdev.h: Fix some typos that cause compiler errors
-	  when CONFIG_USBDEV_DMA and CONFIG_USBDEV_DMAMEMORY are selected (From
-	  Chia Cheng Tsao, 2013-7-12).
-	* nuttx/configs/olimex-lpc1766stk/zmodem:  Add a new configuration to
-	  test the Zmodem sz and rz commands (which don't actually exist yet,
-	  but will). (2013-7-12).
-	* arch/arm/include/armv7-a and src/armv7-a:  Beginning to add support
-	  for the ARMv7-A, the Cortex-A5 in particular.  The initial checkin
-	  is only fragmentary:  A few header files and some copied ARM9
-	  assembly files.  More to come (2013-7-18).
-	* arch/arm/include/sama5, arch/arm/src/sama5, and configs/sama5d3x-e:
-	  Add a directory framework to support the Atmel AT91SAMA5D3 family and
-	  the SAMA5D3x-EK board(s) in particular.  There is very little here on
-	  the first check-in, this structure is being used now primarily to
-	  create the Cortex-A5 support (2013-7-19).
-	* arch/arm/src/armv7-a/arm_cache.S:  Cortex-A5 cache operations
-	  (2013-7-20).
-	* /arch/arm/src/armv7-a/arm_fpuconfig.S and fpu.h: A few more files for
-	  the ARMv7-A/Cortex-A5 port (2013-7-21).
-	* arch/arm/src/sama5/sam_boot.c, sam_clockconfig.h, sam_lowputc.h, and
-	  sam_timerisr.c:  A few  more files for the SAMA5D3 port (2013-7-21).
-	* configs/sama5d3x-ek/src/sam_autoleds.c:  A few more files for the port
-	  to the SAMA5D3x-EK board (2013-7-21).
-	* arch/arm/src/sama5/sam_irq.c: SAMA5 interrupt handling logic
-	  (2013-7-22).
-	* arch/arm/src/sama5/sam_clockconfig.c:  Add SAMA5 PLL configuration
-	  logic (plus associated header files).  Initiali checkin is for the
-	  SAM3U which is very similar but needs to be verified (2013-7-22).
-	* arch/arm/src/sama5/sam_periphclks.h:  Add macros to enable and
-	  disable SAMA5 peripheral clocks (2013-7-22).
-	* arch/arm/src/sama5/sam_lowputc.c and sam_serial.c:  Add support
-	  for SAMA5 UARTs.  Does not even compile as of initial checkin.
-	  (2013-7-22).
-	* arch/arm/src/sama5/sam_gpio.c:  Add GPIO configuration support
-	  for the SAMA5.  Still compilation issues.  (2013-7-22).
-	* arch/arm/src/sama5/chip/sama5d3x_pinmap.h:  Add pin multiplexing
-	  definitions for the SAMA5D3 (2013-7-23).
-	* arch/arm/src/sama5/chip/:  New header files for SAMA5 AXI Matrix
-	  SFR, and BSC blocks (2013-7-23).
-	* arch/arm/src/armv7-a/arm_vectors.S:  Force 8-byte stack alignment
-	  in interrupt handlers before calling C code.  Other ARM
-	  architectures need to do this as well (2013-7-23).
-	* arm/src/armv7-m/up_copyarmstate.c and armv7-a/up_copyarmstate.c:
-	  Added a new form of the register copy function that should save quit a
-	  bit of time for armv7-m (without common vectors) and with armv7-a
-	  (2013-7-23).
-	* arch/arm/src/armv7-a/arm_restorefpu.S, arm_savefpu.S, arm_doirq.c,
-	  arm_fullcontextrestore.S, arm_saveusercontext.S:  Add hardware
-	  floating point register save/restore logic for the Cortex-A5
-	  (2013-7-23).
-	* arch/Kconfig:  Attempt at generic external memory configuration is not
-	  flexible enough, especially for the SAMA5.  Move external memory
-	  configuration options from arch/Kconfig to
-	  arch/arm/src/lpc17xx/Kconfig, lpc31xx/Kconfig, sam34/Kconfig, and
-	  sama5/Kconfig and renamed each from CONFIG_ARCH_ to, for example,
-	  CONFIG_LPC31_.  This renaming also affect many defconfig files
-	  (2013-7-24).
-	* arch/arm/src/sama5/Kconfig and sam_allocateheap.c:  Set up
-	  configuration options for SAMA5 external memory regions; add a custom
-	  sam_allocateheap.c to add the various configured memory regions to the
-	  heap (2013-7-24).
-	* configs/sama5d3x-ek/src/sam_buttons.c, sam_userleds.c, and
-	  sam_autoleds.c:  Add support for the buttons and LEDs on-board the
-	  SAMA5D3x-EK (2013-7-24).
-	* configs/sama5d3x-ek/ostest/defconfig:  Switch console to USART1
-	  (2013-7-4).
-	* arch/arm/src/sam34/Kconfig and drivers/serial/Kconfig:  All serial
-	  configuration logic for USARTs needs to depend on if the USART is
-	  configured as a UART or not.  And this is for all CPUS, not just
-	  SAM3/4 (2013-7-24).
-	* arch/arm/src/arm/up_head.S and arch/arm/src/armv7-a/arm_head.S:
-	  Fix a bug (uninitialized register error) that crept in the ARM9
-	  boot-up code several years ago and was cloned into the Cortex-A5
-	  code.  Obviously no one has used the ARM9 NuttX port for years!
-	* Many files:  Finally... I changed the naming of configuration
-	  variables like CONFIG_DRAM_ to CONFIG_RAM_.  This has bothered
-	  me for a long time since most boards don't have DRAM.  The more
-	  generic RAM naming should not produce so much cognitive dissonance
-	  (2013-7-26).
-	* configs/sama5d3x-ek/hello:  Added a tiny hello world configuration
-	  to simplify bring up of the SAMA5 (it will probably be removed
-	  later) (2013-7-26).
-	* The sama5d3x-ek/hello now runs correctly (2013-7-28).
-	* configs/sama5d3x-ek/ostest/:  This configuration has been modified
-	  to run out NOR flash.  More work is still needed to reconfigure the
-	  SMC so that the NOR flash can work with the high clock (2013-7-28).
-	* arch/arm/src/sama5/sam_clockconfig.c/h and
-	  configs/sama5d3x-ek/src/sam_norflash.c:  Add a file structure that
-	  will (eventually) support reconfiguration of NOR flash when NuttX
-	  boots from NOR FLASH (2013-7-29).
-	* arch/arm/src/sama5/chip/sam_hsmc/h:  SAMA5 HSMC register
-	  definition file (2013-7-29)
-	* configs/sama5d3x-ek/src/sam_norflash.c:  Add board specific
-	  logic to re-configure the SAMA5D3x-EK NOR FLASH before while
-	  running out of NOR FLASH.  We need to change the NOR FLASH
-	  timing BEFORE increasing the main clock (2013-7-29).
-	* configs/sama5d3-ek/norboot and src/nor_main.c:  The norboot
-	  configuration to help debug NuttX in NOR flash.  It runs
-	  out of ISRAM, configures NOR FLASH, then waits for you to
-	  break in with a debugger to start the program in NOR FLASH
-	  (2013-7-29).
-	* arch/arm/src/armv7-a/arm_cache.S:  Separate the bigger cache
-	  operations into separator files (2013-7-29).
-	* arch/arm/src/stm32/stm32_dac.c:  Fixed numerous DAC driver
-	  errors and added support for DAC DMA (contributed by John
-	  Wharington, 2013-7-30).
-	* arch/arm/src/stm32/stm32f30xx_i2c.c:  An I2C driver for
-	  the STM32 F3 family from John Wharington (2013-7-30).
-	* arch/arm/include/armv7-m:  Add irqdisable() (2013-7-30);
-	* configs/sama5d3-ek/src/nor_main.c:  Now disables interrupts
-	  before jumping to NOR flash (2013-7-30).
-	* configs/sama5d3-ek/nsh:  Add an NSH configuration for the
-	  SAMA5D3x-EK (2013-7-31)
-	* configs/sama5d3-ek/src/sam_cxxinitialize.c:  Add C++ support
-	  (2013-7-31).
-
-6.30 2013-09-14 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/sama5/arm_pghead.S:  Separate the logic that is
-	  enabled by CONFIG_PAGING out of arm_head.S.  That was just
-	  too much conditional compilation to be supportable
-	  (2013-8-1).
-	* arch/arm/src/sama5/arm_head.S: Setup page table mappings for
-	  all of .text, .bss, .data, stacks and heap before enabling
-	  the MMU and caching.  This is safer because it avoids the
-	  caching issues (and much less redundant) (2013-8-1)
-	* arch/arm/src/sama5/chip/sam_mpddrc.h:  Add DDR controller
-	  registers definitions for the SAMA5 (2013-8-1).
-	* nuttx/configs/sama5d3x-ek/src/sam_sdram.c:  Add logic which
-	  will (eventually) support the SDRAM on the SAMA5D3x-EK
-	  board.  Initial commit is untested and incomplete (2013-8-1).
-	* arch/arm/src/armv7-a/arm_mmu.c:  Move some generic MMU logic
-	  out of SAMA5-specific code into this share-able file (2013-8-2)
-	* arch/arm/src/armv7-a/mmu.h:  Add inline functions to invalidate
-	  a single TLB.
-	* arch/arm/src/sama5/sam_allocateheap.c and chip/sama5d3x_memorymap.h:
-	  Add logic to handle signed overflow when a memory region is
-	  greater than or equal to 2GB (2013-8-2).
-	* arch/arm/src/sama5/sam_boot.c:  Boot logic now initially
-	  configures DRAM as strongly ordered so that it can be initialized.
-	  After initialization, the page table entries are modified so
-	  that DRAM is fully cache-able (2016-8-2).
-	* arch/arm/src/sama5/chip/sam_mpddrc.h:  Correct typos in the
-	  SAMA5 DDR controller register definitions (2013-8-2).
-	* arch/arm/src/sama5/sam_irq.c:  Correct handling of spurious
-	  interrupts (2013-8-3).
-	* arch/*/src/*/*_irq.c:  Standardize configuration variables used
-	  to enable interrupt controller debug output (2013-8-3).
-	* arch/arm/src/sama5/chip/sam_dmac.h: Add register definitions for the
-	  SAMA5 DMA controller (2013-8-3).
-	* arch/arm/src/sama5/sam_dmac.c and sam_dmac.h:  Add support for the
-	  SAMA5 DMAC controllers.  Initial check-in is untested and is a
-	  straight leverage from the SAM3/4 (2013-8-4).
-	* arch/arm/src/sama5/sam_spi.c, sam_spi.h, and chip/sam_spi.h:
-	  Leverage SPI support from SAM/3/4.  Initial check-in is untested
-	  and have several limitations:  No DMA, no SPI1 support (2013-8-4).
-	* arch/arm/src/sama5/sam_spi.c and sam_spi.h:  Now supports SPI1
-	  and a register access debug option (2013-8-4).
-	* configs/sama5d3x-ek/src/sam_spi.c:  Add board support for the
-	  AT25 serial flash (2013-8-4).
-	* configs/sama5d3x-ek/nsh/defconfig:  FAT file system support is
-	  now enabled by default (2013-8-5)
-	* configs/sama5d3x-ek/src/sam_nsh.c:  Automatically mount AT25
-	  file system for NSH if so configured (2013-8-5).
-	* configs/sama5d3x-ek/src/sam_nsh.c:  Verified that the AT25 FLASH
-	  works on the SAMA5D3x-EK boards and can support a FAT file system
-	  (2013-8-5).
-	* arch/arm/src/sam34/sam_spi.c:  Corrected an error in the SAM3/4
-	  SPI driver while testing the SAMA5 SPI driver:  If CONFIG_SPI_OWNBUS
-	  is not set, the driver will not configure the SPI mode correctly
-	  (2013-8-5).
-	* configs/sama5d3x-ek/src/sam_at25.c: Move AT25 initialization logic
-	  out of sam_nsh.c and into a separate file where it can be better
-	  shared (2013-8-5).
-	* arch/arm/src/sama5/sam_hsmci.c, sam_hsmci.h, and chip.sam_hsmci.h:
-	  Add register definitions and a driver for the (3) HSMCI memory card
-	  interfaces provided by the SAMA5.  Leveraged from the SAM3/4 and
-	  untested on initial commit (2013-8-5).
-	* nuttx/configs/sama5d3x-ek/src/sam_hsmci.c and sam_nsh.c:  Add support
-	  for the (2) SD card slots provided on the SAMA5D3x-EK boards.
-	  Untested on initial commit (2013-8-5).
-	* arch/arm/src/sama5 and nuttx/configs/sama5d3x-ek:  Massive renaming
-	  to get consistent once and for in the usage of PIO vs GPIO.  Other
-	  platforms use the term GPIO more, but Atmel prefers PIO.  I prefer
-	  consistency.  Also fixed CONFIG_PIO vs CONFIG_SAMA5_PIO and renamed
-	  files sam_gpio.* to sam_pio.* (2013-8-6).
-	* arch/arm/src/sama5/sam_pioirq.c:  Add support for SAMA5 PIO interrupts
-	  (2013-8-6).
-	* configs/sama5d3x-ek/src/sam_hsmci.c:  Add support for SD slot card
-	  detection PIO interrupts (2013-8-6).
-	* arch/arm/src/sam34/sam_hsmci.c and sama5/sam_hsmci.c:  Fix handling
-	  of some masked status conditions that can cause false-alarm errors
-	  (2013-8-6).
-	* arch/arm/src/sama5/sam_dmac.c and sam34/sam34_dmac.c:  For SAMA5,
-	  correct some bad register address and some bad assertions that caused
-	  false alarms.  These latter were backported to the SAM34 DMAC driver
-	  as well (2013-8-6).
-	* arch/arm/src/sama5/sam_dmac.c and sam34/sam34_dmac.c: Correct
-	  some parameters reversed in function call (2013-8-6).
-	* arch/arm/src/sama5/sam_spi.c:  The SAMA5 SPI driver now supports
-	  DMA transfers (2013-8-9).
-	* arch/arm/src/sama5/sam_dmac.c:  Finally after many bugfixes (the
-	  last being caching issues), the SAMA5 DMA support has been
-	  verified (with SPI) (2013-8-9).
-	* arch/arm/src/sama5/sam_memories.c and .h:  Centralize logic for
-	  conversions between physical and virtual addresses (2013-8-9).
-	* arch/arm/src/sama5/sam_hsmci.c and sam34/sam_hsmci.c:  Correct a
-	  race condition in the SAMA5 HSCMI driver:  The transfer done
-	  interrupt was firing before the wait was started.  Fix this and
-	  also backported the changes to SAM3/4 (untested).  Now HSCMI is
-	  functional on the SAMA5 with DMA! (2013-8-10).
-	* arch/arm/src/sam34/sam3u_periphclks.h: Correct a typo in a register
-	  name (2013-8-10).
-	* drivers/mmcsd/mmcsd_sdio.c:  Correction for a bad return value
-	  when multiple block SDIO transfers are suppressed.  By Andrew Tridgell
-	  via Lorenz Meier (2013-8-10).
-	* drivers/serial/serial.c, drivers/usbdev/cdcacm.c, and
-	  include/nuttx/fs/ioctl.h: Added support for FIONREAD and FIONWRITE,
-	  added TERMIOS input / output processing support for UART and CDCACM
-	  serial ports. Implemented by Mike Smith, Andrew Tridgell and Lorenz
-	  Meier (2013-8-10).
-	* drivers/usbdev/cdcacm.c:  Added FIONREAD and FIONWRITE to CDC/ACM
-	  driver based on serial.c implementation. From Lorenz Meier
-	  (2013-8-10).
-	* arch/arm/src/stm32/Kconfig and stm32_serial.c:  Added option to
-	  disable serial port reordering.  From Lorenz Meier (2013-8-10).
-	* arch/arm/src/sama5/Kconfig, sam_ohci.c, and
-	  arch/arm/src/sama5/sam_clockconfig.c:  Add a OHCI driver for the SAMA5.
-	  Untested on initial check-in (2013-8-11).
-	* include/nuttx/usb/usbhost.h, arch/arm/src/stm32, arch/arm/src/lpc17xx,
-	  and include/nuttx/usb/usbhost.h, and nuttx/configs/<stm32-boards>:
-	  Move prototype of usbhost_initialize() of usbhost.h and into
-	  architecture specific files.  This is necessary because some chips
-	  (like the SAMA5) have multiple, different USB host interfaces
-	  (2013-8-11).
-	* drivers/usbhost/usbhost_hidkbd.c and usbhost_storage.c:  Correct some
-	  compilation errors when pre-allocated class structures are used.  Also
-	  eliminate some warnings about uninitialized variables (2013-8-11).
-	* configs/sama5d3x-ek/src/sam_usb.c and related files:  Add support for
-	  initialization of the USB host and mass storage class device (2013-8-11).
-	* arch/arm/src/sama5/sam_ohci.c and sam_usbhost.h (was sam_ohci.h), and
-	  configs/sama5d3x-ek/src/sam_usb.c, and sama5d3x-ek.h:  Add controls
-	  to enable VBUS power in OHCI host most (2013-8-12).
-	* includes/nuttx/usb/usbhost.h, all USB host drivers in arch/, and all
-	  USB host-side connection monitoring threads in configs/*/src:  The
-	  SAMA5 has three downstream ports; all of the other USB host
-	  implementations have only one.  This will require significant changes
-	  to the USB host interfaces starting with these changes to monitor
-	  connections on a port-by-port basis.  This effects a lot of files and
-	  more changes are coming for this issues.  Changes are being blindly
-	  incorporated into other architrectures.  I am being careful to avoid
-	  breakage, but I expect some (2013-8-12).
-	* configs/olimex-stm32-p107/nsh/defconfig and appconfig:  Converted to
-	  use the kconfig-frontends tool. From Max Holtzberg (2013-8-12).
-	* includes/nuttx/usb/usbhost.h, et al:  Continued changes to the USB
-	  host interface to support multiple downstream ports.  When a class
-	  is disconnected, it needs to provide the FunctionAddress to the
-	  USB HCD disconnect method so that the HCD will know which port
-	  is being disconnected (2013-8-12).
-	* nuttx/arch/arm/src/stm32/Kconfig, Make.defs, and /stm32f30xxx_i2c.c:
-	  STM32 F3 I2C fixes from John Wharington (2013-8-13).
-	* nuttx/arch/arm/src/sama5/sam_serial.c:  Fix a re-entrancy problem
-	  in up_putc().  I think all architectures have this re-entrancy
-	  than can result in serial interrupt being disabled, but I have only
-	  seen the symptom on SAMA5 (2013-8-13).
-	* includes/nuttx/usb/usbhost.h and many other affected files:  Separate
-	  wait() and enumerate() methods from struct usbhost_driver_s and move
-	  to new interface, struct usbhost_connection_s.  This is part of the
-	  necessary restructuring of the USB host interface to support multiple
-	  root hub ports (2013-8-13).
-	* arch/arm/src/sama5/sam_ohci.c:  Major restructuring of the driver due
-	  in order to handle multiple root hub ports.  Basically instead of one
-	  driver structure with an arrayof root hub port structures, there is no
-	  one container structure with an array of driver structures, one for
-	  each root hub port.  The advantage is that each class->driver call not
-	  passes information associated with the RHport implicitly.  The klugey,
-	  procedural alternative was to add the function address to every
-	  interface method (which I started to do but backed above) (2013-8-13).
-	* arch/arm/src/sama5/sam_memories.c and .h:  Extended logic so do
-	  conversions from physical to virtual addresses (2013-8-14).
-	* arch/arm/src/sama5/sam_ohci.c:  Add D cache controls and conversion
-	  between physical and virtual address (2013-8-14).
-	* arch/arm/src/stm32/stm32_spi.c:  nbits() interface extended to
-	  control bit order as well as bit width (from Teemu Pirinen)
-	  (2013-8-16)
-	* arch/arm/src/sama5/sam_ohci.c:  More to be tested, but the SAMA5
-	  OHCI driver is now basically functional (2013-8-16).
-	* include/nuttx/usb/ehci.h:  EHCI header file (2013-8-17).
-	* arch/arm/src/stm32/stm32_i2c.c:  Correct an error that crept into
-	  the STM32 F1 I2C driver with some recent changes.  From Yiran Liao
-	  (2013-8-18).
-	* drivers/usbhost/usbhost_devaddr.c and include/nuttx/usb/usbhost_devaddr.h:
-	  Add logic for management of device addresses.  This logic does not
-	  currently hook into into anything.  It will someday be a part of the
-	  NuttX USB hub implementation (2013-8-18).
-	* nuttx/arch/arm/src/sama5/sam_ehci.c and other files:  Create a skeleton
-	  environment for development of an EHCI driver.  Not much in place yet
-	  (2013-8-20).
-	* nuttx/arch/arm/src/sama5/sam_ehci.c:  Now code complete for all
-	  asynchronous endpoints (control and bulk); nothing yet in place
-	  for periodic endponts (interrupt and isochronous) (2013-8-22).
-	* include/nuttx/serial/serial.h and arch/arm/src/stm32/chip/stm32f40xxx_pinmap.h:
-	  SourceForge bug #16 Fix IO pin map. Add CONFIG_SERIAL_TERMIOS support.
-	  Also fixes some STM32 F4 Timer 8 pin configurations.  From CCTSAO
-	  (2013-8-23).
-	* arch/arm/src/lpc17xx/lpc17_usbhost.h:  Fix #endif with missing #if
-	  condition.  Reported by Andrew Bradford (2013-8-23).
-	* nuttx/arch/arm/src/sama5/sam_ehci.c:  Now handles low- and full-speed
-	  connections by giving the port to the OHCI driver (2013-8-24).
-	* nuttx/arch/arm/src/sama5/sam_ohci.c:  Now uses the work queue to
-	  defer interrupt processing (2013-8-24).
-	* nuttx/arch/arm/src/sama5/sam_ohci.c and nuttx/arch/arm/src/sama5/sam_ehci.c:
-	  EHCI is now the common interrupt "master."  It will receive all UHPHS
-	  interrupts and route the interrupt event to both the OHCI and EHCI
-	  logic (2013-8-24).
-	* net/uip/uip_arp.c:  Correct backward condition in netmask task.
-	  From Max Holtzberg (2013-8-25).
-	* arch/arm/src/sama5/sam_ohci.c:  SAMA5 OHCI is again functional by
-	  itself after all of the changes to integrate with EHCI. (2013-8-25).
-	* drivers/net/encx24j600.c/.h and include/nuttx/net/encx24j600.h:
-	  Support the Microchip ENCX24J600 Ethernet driver from Max Holtzberg
-	  (2013-8-25).
-	* configs/olimex-stm32-p107:  Incorporate ENCX24J600 support for the
-	  Olimex STM32 P107 board.  From Max Holtzberg (2013-8-25).
-	* fs/romfs/fs_romfsutil.c:  Fix an error where long (>15) file names
-	  were read incorrectly from a ROMFS file system.  From Mike Smith
-	  (2013-8-25).
-	* arch/arm/src/stm32/stm32_sdio.c: SourceForge bug #17 Fix if
-	  CONFIG_SDIO_BLOCKSETUP defined, OS will crash". Generate an error
-	  if CONFIG_SDIO_BLOCKSETUP is defined; that option is not yet supported
-	  by the STM32 SDIO driver.  From CCTSAO (2013-6-26)
-	* drivers/net/encx24j600.c and .h: Use the ENC's SRAM for multiple TX
-	  packets.  From Max Holtzberg (2013-6-26).
-	* include/nuttx/usb/usbhost.h, drivers/usbhost/usbhost_enumerate.c, and
-	  all USB host drivers:  Added a new driver method:  getdevinfo.  This
-	  method is intended to get various information about the connected device,
-	  but currently returns only the device speed.  The device speed is
-	  necessary by usbhost_enumerate in order to set a credible initial EP0
-	  max packetsize.  High speed needs 64 bytes, low speed needs 8 bytes,
-	  and full speed can handle almost any size (2013-8-26).
-	* arch/arm:  Add hooks for Cortex-A8.  Not much more yet (2013-8-27).
-	* Lots of files:  Fix all occurrents of "the the" in documentation and
-	  comments (2013-8-27).
-	* arch/arm/src/sama5/sam_allocateheap.c:  Correct the logic that
-	  determines which memory regions get added to the heap.  When
-	  CONFIG_MM_NREGIONS > 1, the logic was adding the ISRAM region to
-	  the heap twice! (2013-6-27).
-	* nuttx/arch/arm/src/sama5/sam_ehci.c:  Add (untested) support for
-	  interrupt endpoints (2013-8-28).
-	* arch/arm/src/sama5/chip/sam_udphs.h:  High-speed USB device register
-	  definitions for the SAMA5 (2013-8-28)
-	* arch/arm/src/sama5/sam-udphs.c:  A framework for the USB device
-	  driver taken from another architecture.  There is very little
-	  useful in this initial check-in (2013-8-29).
-	* Remove all empty and most useless README.txt files (2013-8-31)
-	* configs/freedom-kl25z/src/kl_spi.c:  Correct typo in name of a
-	  function.  From Alan Carvalho de Assis (2013-8-31).
-	* drivers/usbdev/cdcacm_desc.c:  Fixed some compilation errors that
-	  only occur when dual speed support is enabled (2013-9-1).
-	* arch/arm/src/sama5/sam_clockconfig.c and configs/sama5d3x-ek/include/board_*mhz.h:
-	  Add logic to support UDPHS clocking (2013-9-13).
-	* arm/src/stm32/chip/stm32_tim.h:  Some CCER bit settings changed
-	  per SourceForge bug #18 submitted by CCCTSAO (2013-9-2).
-	* apps/examples/cc3000, configs/freedom-kl25z, drivers/wireless/cc3000,
-	  and nuttx/include/nuttx/cc3000.  Initial support for the TI CC3000
-	  network module on the Freescale Freedom-KL25Z board from Alan Carvalho
-	  de Assis.  This is still very much a work in progress (2013-9-3).
-	* configs/*/usbmsc:  Renamed from config/*/usbstorage to match the
-	  change in naming in apps/examples submitted by CCTSAO (2013-9-5).
-	* drivers/usbdev/cdcacm.c and pl2303.c:  Don't use max packetsize assigned
-	  to the endpoint when allocating request buffers; The default value of
-	  the endpoint max packetsize may be incorrect because the endpoint
-	  has not yet been configured.  Verified on CDC/ACM.  Corresponding
-	  changes made to pl2303, but untested (2013-9-5).
-	* arch/arm/src/sama5/sam_udphs.c:  The high-speed device side driver
-	  is now functional (although more testing is always needed) (2013-9-5).
-	* net/net_monitor.c: Fixes a race condition where a loss of connection
-	  may not be detected when the connection is lost before it has been
-	  accepted (from Max Holtzberg) (2013-9-6).
-	* configs/sama5d3x-ek/demo:  Add a new NSH configuration.  The
-	  original NSH configuration will be a simple platform for testing
-	  individual features; the demo configuration will be a more complex
-	  platform for demonstrating multiple interacting features (2013-9-6).
-	* net/uip/uip_tcpbacklog.c:  Fix a major bug in the TCP/IP backlog
-	  initialization:  Only the first backlog buffer was getting added
-	  to the free list.  From Max Holtzberg (2013-9-6).
-	* configs/sama5d3x-ek/demo:  Add support for USB MSC device on the
-	  AT25 serial FLASH (untested) (2013-9-6).
-	* drivers/net/enc28j60.c:  Changes back-ported from the ENCX24J600
-	  to the ENC28J60 by Max Holtzberg.  These seem like reasonable and
-	  correct changes, but have yet to be verified on an ENC28J60 (2013-9-6).
-	* drivers/usbdev/usbdev_strings.c:  Extended decoding and stringifying
-	  of USB trace output to include trace output from class drivers.
-	  (2013-9-6).
-	* drivers/usbdev/usbmsc_desc.c:  Fix a warning when USB MSC is
-	  compiled for a high-speed device (2013-9-7).
-	* drivers/usbhost/usbhost_storage.c:  If device is returning fatal
-	  transfer errors while attempt to initialize, don't bother with
-	  the startup retries; abort immediately so that the device will
-	  be reset and we can try again (2013-9-9).
-	* drivers/usbhost/usbhost_storage.c:  Correct a reference counting
-	  error:  When an MSC device transfer fails while waiting for
-	  UnitTestReady (see 2013-9-9), the reference count was not being
-	  decremented.  The end result is a memory leak (2013-9-10).
-	* arch/arm/src/sama5/chip/sam_twi.h:  Added SAMA5 TWI register
-	  definition file (2013-9-11).
-	* arch/arm/src/sama5/sam_twi.c and .h:  Framework for a SAMA5
-	  TWI driver (not much present in initial checkin) (2013-9-11).
-	* fs/nxffs:  Clean up some compilation warnings (2013-9-12)
-	* drivers/mtd/at24xx.c:  Add support for the AT 24C512 part
-	  (2013-9-12).
-	* arch/arm/src/sama5/sama5_twi.c:  Clean up some errors that
-	  only occur with CONFIG_DEBUG_I2C (2013-9-12).
-	* arch/arm/src/sama5/chip/sam_emac.h and sam_gmac.h:  Register
-	  definition files for the SAMA5 EMAC and GMAC peripherals
-	  (incomplete on the initial commit) (2013-9-12).
-	* arch/arm/src/stm32/stm32_can.c:  Make filter register accessible
-	  for CAN1 and CAN2. Patch provided by Lorenz Meier (2013-9-13).
-	* nuttx/include/nuttx/usb/cdcacm.h:  Fix backward conditional
-	  compilation in the CDC/ACM driver with regard to remote
-	  wakeup and self-powered capabilities.  Provided by Lorenz Meier
-	  (2013-9-13)
-	* fs/romfs/fs_romfsutil.c: Fix for filenames > 15 characters.
-	  Provided by Lorenz Meier (2013-9-13).
-	* arch/arm/src/stm32/Kconfig: Fix STM32 UART7/8 kconfig names
-	  and UART DMA.  Provided by Lorenz Meier (2013-9-13).
-	* configs/maple:  Board configuration for the LeafLabs Maple
-	  and Maple Mini boards.  From Librae (2013-9-13).
-	* arch/arm/src/sama5/sam_emac.c and .h:  Skeleton files for
-	  a SAMA5 EMAC driver.  Not much in the initial files; these
-	  are just hacked out and gutted versions of the corresponding
-	  STM32 files (2013-9-13).
-
-6.31 2013-10-28 Gregory Nutt <gnutt@nuttx.org>
-
-	* nuttx/fs/romfs/fs_romfsutil.c:  Back out part of a recent
-	  ROMFS change (2013-9-14).
-	* configs/sama5d3x-ek/src/sam_ethernet.c:  Add support for
-	  PHY interrupts (2013-9-15).
-	* arch/arm/src/kl/chip/kl_pit.h and kp_tpm.h:  Add register
-	  definitions for the Freescale Kinetis KL25Z from Alan
-	  Carvalho de Assis (2013-9-15).
-	* configs/ and a few Ethernet drivers:  Add the prefix ETH0
-	  to all PHY configuration selections.  This will allow us
-	  to support to Ethernet MAC drivers with two different
-	  PHYs (identified with ETH0 and ETH1) (2013-9-17).
-	* net/Kconfig and drivers/net/Kconfig:  Move PHY selections from
-	  net/Kconfig to drivers/net/Kconfig where they belong.  Add the previx
-	  ETH0_ to each PHY selection.  And a new configuration
-	  CONFIG_NETDEV_MULTINIC that can be set to enable support for multiple
-	  Ethernet MAC drivers (not fully implemented yet).  When Enabled,
-	  another set of PHY selections are enabled for ETH1_ (2013-9-17).
-	* include/nuttx/net/mii.h:  Add definitions for the Micrel KSZ8051 PHY
-	  (2013-9-17).
-	* configs/zkit-arm-1768:  MMC/SD is on SPI, not SSP0.  From Rashid
-	  Fatah (2013-9-17).
-	* configs/: Lots of defconfig files changes.  A consequence of the
-	  above renaming and moving of the PHY configuration settings is
-	  that the you now also have to set CONFIG_NETDEVICES=y if you
-	  need to set a PHY configuration (2013-9-17).
-	* arch/arm/src/lpc17xx/lpc17_spi.c:  Remove undefined spi_select()
-	  prototype.  This was causing compile time warnings (2013-9-17).
-	* configs/sama5d3x-ek/src/sam_ostest.c:  Add OS test support for
-	  the FPU test (2013-9-18).
-	* arch/arm/src/sama5/sam_usbhost.h and include/nuttx/usb/usbhost_trace.h
-	  Correct some inconsistencies in the way that USB configuration
-	  settings are used.  This caused compilation errors in SAMA5 OHCI
-	  when USB debug was ON but USB host tracing was off (2013-9-19).
-	* nuttx/arch/arm/src/sama5/sam_clockconfig.c:  When 480MHz UPLL
-	  is used to drive OHCI, it should have a divider of 10.  However,
-	  that does not work.  A divider of 5 does.  Why? (2013-9-19).
-	* Several USB device driver files:  Change naming of SELFPOWERED
-	  and REMOTEWAKEUP to avoid name collisions.  Prepend the name
-	  of the driver (for example CDCACM_SELFPOWERED) (201309-20).
-	* configs/sama5d3x-ek/nsh and demo: Increase the number of pre-allocated
-	  watchdog timers.  The default number of 4 was easily being exhausted
-	  in the more complex configurations.  Enable the task name feature
-	  to provide prettier ps command output.  src/sam_usb.c:  Use more
-	  descriptive task names when starting the EHCI and OHCI monitor tasks
-	  (2013-9-20).
-	* arch/arm/src/sama5/sam_ohci.c:  Fix a place where DMA-related data
-	  needed to be flushed to data cache; Fix another where a virtual address
-	  was being used in a register where a physical address was required
-	  (2013-9-20).
-	* arch/arm/src/armv7-a/cp15_clean_dcache.S and cp15_flush_dcache.S:
-	  fix an error in the alignment of addresses to cache line boundaries
-	  (2013-9-21).
-	* drivers/usbdev/cdcacm_desc.c:  Change the interval for the interrupt
-	  endpoint from 0xff (invalid) to 10.  This is not a critical change
-	  but will avoid a complaint from the Linux driver when it overrides
-	  the 0xff value (2013-9-22).
-	* configs/zkit-arm-1769:  LED1 is now user controllable after booting.
-	  From Rashid Fatah (2013-9-23).
-	* arch/arm/src/sama5/sam_hsmci.c:  TX DMA disabled.  It is just not
-	  reliable. No idea why.  RX DMA is still used (2013-9-23).
-	* driver/net/encx24j600.c:  UDP/RXAVAIL backlog support from Max
-	  Holtzberg (2013-9-24).
-	* Standardized stack checking logic so the interfaces can be used
-	  by common stack monitoring logic (2013-9-24).
-	* drivers/net/Kconfig:  Move CONFIG_NET_DUMPPACKET out of LPC17
-	  and STM32 Kconfigs into the common network driver Kconfig (2013-9-25).
-	* arch/arm/src/sam_emac.c:  EMAC driver is basically functional.  More
-	  testing is needed (as always) (2013-9-25).
-	* configs:  Changes to many defconfig files resulting from moving
-	  apps/examples/usbmsc to apps/system/usbmsc (2013-9-25).
-	* configs:  Changes to many defconfig files resulting from moving
-	  apps/examples/cdcacm to apps/system/cdcacm (2013-9-25).
-	* configs:  Changes to many defconfig files resulting from moving
-	  apps/examples/composite to apps/system/composite (2013-9-25).
-	* configs/stm3210e-eval/composite:  Converted to use the kconfig-
-	  frontends tool (2013-9-25).
-	* arch/arm/src/sama5/sam_gmac.c:  Initial GMAC driver is really
-	  just the EMAC driver forced to compile with the GMAC register
-	  definitions (2013-9-26).
-	* arch/arm/src/sama5/sam_gmac.c and include/nuttx/net/gmii.h:
-	  Beginning of support for GMII/RGMII PHY support (2013-9-26)
-	* net/netdev_txnotify.c:  Look up of device using subnet will fail
-	  if the packet is being sent out of our subnet (via a router).
-	  The fallback here is just to use "eth0" if the subnet lookup
-	  fails.  This will, of course, will have to be revisited if/when
-	  multiple NICs are supported.  From Max Holtzberg (2013-9-27).
-	* net/send.c:  Fix some backward conditional logic in check
-	  to see if we should check if the ARP address in the table.  From
-	  Max Holtzberg (2013-9-27).
-	* drivers/net/encx24j600.c:  Removed logic that polls for the
-	  next outgoing packet from the TX done interrupt handling.  From
-	  Max Holtzberg (2013-9-27)
-	* sched/os_start.c:  Should not call group_setupidlefiles() if there
-	  are no file descriptors (and, hence, no file system) (2013-9-27).
-	* arch/arm/src/sama5/sam_gmac.c:  GMAC driver and GMII logic is
-	  code complete and ready for test (2013-9-27)
-	* configs/compal_e86: Basic board support for the Motorola C139
-	  (Compal E86) phone.  From Craig Comstock (2013-9-27).
-	* configs/compal_e86: Converted to use the kconfig-frontends
-	  tools (2013-9-27).
-	* drivers/net/encx24j500.c: Use separate pools for RX and TX
-	  descriptors.  From Max Holtzberg (2013-9-28).
-	* nuttx/fs/fs_sendfile.c, nuttx/net/net_sendfile.c, and other file:
-	  Integrate an optimized sendfile() operation from Max Holtzberg
-	  (2013-9-28).
-	* tools/mkdeps.*, nuttx/mm/Makefile, nuttx/libc/Makefile:  Dependency
-	  generation generation was broken for directories that keep objects in
-	  a sub-directory.  Fixed by adding a object path to the mkdeps.c,
-	  mkdeps.bat, mkdeps.sh tools (2013-0-29).
-	* arch/arm/src/sama5/chip/sam_adc.h:  ADC register definition file.
-	  Incomplete on initial check-in (2013-9-29).
-	* arch/arm/src/sama5/sam_adc.c and .h:  Framework for an ADC
-	  driver to come (just empty "skeleton" files on initial commit)
-	  (2013-9-30).
-	* arch/arm/src/sama5/sam_touchscreen.h and .h:  Framework for a
-	  touchscreen driver (also an empty "skeleton" file on the initial
-	  commit) (2013-9-30).
-	* arch/arm/src/kl/kl_lowgetc.c and .h:  First cut at low-level
-	  getc() function for operation with no file system (and, hence,
-	  no serial driver) (from Alan Carvalho de Assis, 2013-9-30).
-	* configs/freedom-kl25z/minnsh:  A new configuration that is
-	  an experiment to see how small we can get the NuttX footprint.
-	  From Alan Carvalho de Assis. (2013-9-30).
-	* net/net_sendfile:  The high performance sendfile logic is
-	  now functional.  From Max Holtzberg (2013-9-30).
-	* tools/define.sh:  'cut' no longer works as it once did.  Script
-	  adapted to observed behavior (2013-9-30).
-	* include/nuttx/net/route.h and net/net_*route.c:  Partial
-	  implementation of a routing table. Not yet hooked into the
-	  build system (2013-10-1)
-	* include/net/route.h:  Defines the application interface to
-	  the routing table (2013-10-2).
-	* configs/spark:  Add configuration for the Spark Core.  The
-	  initial check-in is basically the Maple Mini board (2013-10-2).
-	* include/net/route.h and libc/net/lib_addroute.c and delroute.c:
-	  Add an application interface to manage the routing table
-	  (2013-10-2).
-	* arch/arm/src/sama5/sam_adc.c and sam_tsc.c:  The SAMA5
-	  touschscreen drive is basically functional) (2013-10-3)
-	* arch/arm/src/sama5/chip/sam_lcdc.h:  Add SAMA5 LCD register
-	  definition header file (2013-10-4).
-	* net/netdev_findbyaddr.c:  Now (1) uses the routing table
-	  if available to look up the router to get to a remote network,
-	  and (2) if there is only a single network device and no
-	  route, then it will simply return that single device.  The
-	  ARP logic will use the default router address associated with
-	  the interface in this case (2013-10-5).
-	* net/netdev_router.c and net/uip/uip-arp.c:  When the target IP address
-	  does not lie on the device's networker when we have a routing table,
-	  looking the correct router IP address to use in the ARP request.
-	  In that case, we want the MAC address of the router, not of the
-	  target endpoint (2013-10-5).
-	* net/netdev_rxnotify.c and others: Use the new signature of rxnotify
-	  caused by the routing table.  From Max Holtzberg (2013-10-6).
-	* arch/arm/src/sama5/sam_lcdc.c and .h: Empty "skeleton" file that
-	  will eventually become an LCDC driver for the SAMA5 (2013-10-6).
-	* net/net_close.c, net/uip/uip_tcpcon, and include/nuttx/net/uip/uip-tcp.h:
-	  Make net_close() nonblocking and free unestablished connections if no
-	  free connections available.  From Max Holtzberg (2013-10-6).
-	* net/net_close.c and other:  Update of change of 2013-10-6 from
-	  Max Holtzberg (2013-10-8).
-	* arch/arm/src/sama5/sam_lcd.c: LCDC driver is code complete and
-	  incorporated into the build system (but still untested (2013-10-8).
-	* configs/sama5d3x-ek/nx:  Add an examples/nx configuration that
-	  will be used for the SAMA5 LCD bring-up (2013-10-8).
-	* configs/arduino-due/Kconfig and include/board.h:  Add configuration
-	  to select revision 3 of the Arduino Due which has some small
-	  but important differences.  Suggested by gdi@embedders.org.
-	* arch/arm/src/sama5/sam_allocateheap.c, Kconfig, chip/sama5d3_memorymap.h:
-	  Add support so that subsets of the total DRAM (and other external
-	  memory) can be added to the heap, leaving other memory reserved for
-	  other purposes (like LCDC framebuffers) (2013-10-10).
-	* arch/arm/src/sama5/sam_lcd.c:  Change how DMA descriptors are
-	  allocated.  My reading of the SAMA5 MATRIX is that the LCDC will
-	  be unable to DMA from internal SRAM (2012-10-10).
-	* arch/arm/src/sama5/Kconfig and configs/sama5d3x-ek/nx/defconfig:  The
-	  default LCD resolution is now RGB565.  Added output resolution selection
-	  which can be different from the software resolution (2013-10-10.
-	* arch/arm/src/sama5/sam_lcd.c wait before modifying register if the LCDC
-	  is re-synchronizing (SIF). Use start-up configuration settings from
-	  Barebox.  They still don't work (2013-10-10).
-	* net/net_monitor.c: Notify the socket layer if a connection is lost
-	  before the monitoring callback has been registered.  From Max
-	  Holtzberg (2013-10-11).
-	* net/recvfrom.c, sendto.c, uip/uip_input.c, uip/uip_udpcallback.c,
-	  uip/uip_udpconn.c, uip/uip_udpinput.c:  Changed the meaning of the
-	  uip_*input functions. They now return success when a packet is
-	  dropped; This is needed for the ENCX24J600 driver that must make
-	  a decision to return the packet or not:  It should not retry
-	  dropped packets. From Max Holtzberg (2013-10-11).
-	* drivers/net/encx24j600.c and Kconfig: ENCX24J600: Improved descriptor
-	  handling, free packets on rx abort interrupt. From Max Holtzberg
-	  (2013-10-11).
-	* arch/arm/src/sama4/sam_lcd.c and configs/sama5d3x-ek/include/board.h:
-	  Fix PWM precealler divider.  This eliminiates the backlight flicker
-	 (2013-10-11).
-	* arch/arm/src/sama5/sam_boot.c: Correct how framebuffer memory was
-	  being mapped.  The mapping was getting overrwritten and the
-	  framebuffer memory was ending up cacheable (2013-10-13).
-	* arch/arm/src/sama5/Kconfig, sam_lcdc.c, defconfig, and related files:
-	  Remove options for obtaining framebuffer memory in other ways.  That
-	  option just really cannot work (2013-10-13).
-	* configs/sama5d3x-ek/nxwm:  Add NxWM configuration for SAMA5D3x-EK
-	  (2013-10-13).
-	* configs/sama5d3x-ek/nxwm/defconfig:  Now uses scaled icons in the
-	  the NxWM taskbar (2013-10-15).
-	* configs/sama5d3x-ek/nxwm/defconfig:  Use the 320x320 NuttX logo as
-	  the NxWM background (2013-10-15).
-	* arch/arm/src/stm32/chip/stm32f103c_pinmap.h:  Pinmapping corrections
-	  from David Sidrane (2013-10-16).
-	* configs/spark:  The Spark device configuration is receiving some
-	  TLC from David Sidrane (2013-10-16).
-	* drivers/mtd/sst25.c:  Add support for the SST25VF016B.  From David
-	  Sidrane (2013-10-16).
-	* net/net_close.c: Changed net_close debug output to verbose.  From
-	  Max Holtzberg (2013-10-17).
-	* net/send.c and net_sendfile.c:  Reset the send timeout when the
-	  data is ACKed, not when the data is sent.  Remove conditions on
-	  checking for timeout.  From Max Holtzberg (2013-10-17).
-	* net/net_sendfile.c:  Correct parameter passed to netdev_txnotify()
-	  from Max Holtzberg (2013-10-17).
-	* include/nuttx/net/uip/uip-tcp.h, net/send.c, uip/uip_tcpconn.c, and
-	  uip/uip_tcpinput.c:  Change how the initial minimum MSS is calculated.
-	  Max Holtzberg (2013-10-17).
-	* net/uip/uip_tcpinput.c:  Move tcp connection into SYN_RCVD state
-	  after aception instead of bypassing and moving directly into ESTABLISHED.
-	  From Max Holtzberg (2013-10-17).
-	* net/net_sendfile.c:  Let the ACK callback handle the REXMIT flag and
-	  don't return until all data has been ACK'd. From Max Holtzberg
-	  (2013-10-17).
-	* arch/arm/src/stm32/chip/stm32f40xxx_dma.h: Typo fixes for UART7 and
-	  UART8 DMA configs.  From Mike Smith (2013-10-18).
-	* arch/arm/src/stm32/Kconfig:  DMA priority corrections from Mike Smith
-	  (2013-10-18).
-	* arch/arm/src/stm32/stm32*_dma.c, stm32_sdio.c, and stm32_dma.h:
-	  Changes to the stm32_dmacapable API. In order to correctly verify that
-	  a buffer can be transferred, the transfer count and the CCR value are
-	  required.  Implemented stm32_dmacapable for stm32f1xx devices. Enhanced
-	  stm32_dmacapable for stm32f2xx and stm32f4xx devices to check for
-	  additional conditions that will cause DMA to fail or lose data (2013-10-18).
-	* include/nuttx/sdio.h:  Add a preflight method to the SDIO interface.
-	  From Mike Smith (2013-10-18).
-	* drivers/mmcsd/mmscd_sdio.c: Enhanced the mmcdd_sdio driver to perform
-	  DMA preflight operations and fail DMA read/write requests that fail
-	  preflighting. From Mike Smith (2013-10-18).
-	* fs/fat/fs_fat32.c: Enhanced the FAT32 filesystem code to understand DMA
-	  preflight failures, and to use the file sector buffer as a bounce buffer
-	  when a user-supplied buffer is not suitable for DMA. From Mike Smith
-	  (2013-10-18).
-	* arch/arm/src/sama5/chip/sam_rtc.h and sam_wdt.h:  Add WDT and RTC
-	  register definition header files (2013-10-18).
-	* arch/arm/src/sama5/chip/sam_rtc.c and sam_rtc.h:  Basic RTC driver.
-	  Support for RTC alarms is fragmentary and this has not yet been hooked
-	  into the build system  (2013-10-18).
-	* Various Spark and CC3000 files:  Update by David Sidrane (2013-10-18).
-	* arch/arm/src/sama5/chip/sam_gpbr.h:  Add SAMA5 GPBR register
-	  definitions (2013-10-19).
-	* Kconfig:  Add support for CONFIG_DEBUG_RTC (2013-10-19).
-	* configs/sama5d3x-ek/README.txt, demo/defconfig:  Describe how to
-	  enable RTC support for the nsh/ configuration; RTC is now enabled by
-	  default in the demo configuration (2013-10-19).
-	* arch/arm/src/sama5/sam_rtc.h and other files:  Hook the SAMA5 RTC
-	  driver into the build system; Verify the correct operation of the
-	  SAMA5 RTC driver (2013-10-19).
-	* arch/arm/src/sama5/sam_wdt.c and .h:  Add a SAMA5 watchdog timer
-	  driver. Untested on initial check-in (2013-10-19).
-	* arch/arm/src/sama5/sam_trng.c, sam_trng.h, and chip/sam_trng.h:  Add
-	  a /dev/random driver based on the SAMA5D3 TRNG peripheral (2013-10-20).
-	* configs/sama5d3x-3k/demo:  The TRNG and /dev/random are now enabled
-	  by default in the demo configuration (2013-10-20).
-	* arch/arm/src/sama5/chip/sam_tc.h:  SAMA5D3 timer/counter register
-	  definition header file (2013-10-20).
-	* libc/stdio/lib_sscanf.c:  scanf() fixes from kfrolov: 1) sscanf()
-	  function hangs in the following example: sscanf("2", "%u,%u,%u,%u", ...),
-	  2) sscanf() returns incorrect number of parsed numbers if some arguments
-	  can't be parsed: sscanf("=2", "%u,%u,%u,%u",...)==1 instead of 0, and
-	  3) using of char* instead of const char* in vsscanf function leads to
-	  warnings from GCC (2013-10-21).
-	* arch/arm/src/sama5/chip/sam_can.h:  SAMA5D3X CAN register definition
-	  header file (2013-10-21)
-	* arch/arm/src/sama5/sam_can.c and .h:  Framework for a SAMA5 CAN driver.
-	  Initial checkin is the STM32 CAN driver with name changes (2013-10-21).
-	* arch/arm/src/sama5/sam_can.c and .h: SAMA5 CAN driver is code complete
-	  but still untested (2013-10-22).
-	* configs/spark:  Spark configuration updated by David Sidrane (2013-10-23).
-	* drivers/wireless/cc3000:  CC3000 driver updates from David Sidrane
-	  (2013-10-23).
-	* include/nuttx/wireless/cc3000:  More CC3000 driver updates from David
-	  Sidrane (2013-10-23).
-	* net/Kconfig, drivers/net/wireless/cc3000/Kconfig, and Kconfig:  Add
-	  ARCH_HAVE_NET that determines if a network is present or not.  This
-	  currently can happen if CONFIG_NET is set or if CONFIG_WL_CC3000 is
-	  is set (23013-10-23).
-	* arch/arm/src/stm32/stm32f10xxx_dma.c:  DMA fix from David Sidrane:
-	  The DMA_CNDTRx register cannot be modified if the DMA channel is
-	  disabled (2013-10-23).
-	* arch/arm/src/sama5/sam_tc.c and .h:  First cut at a timer/counter
-	  library for the SAMA5D3 (2013-10-23).
-	* configs/spark/nsh/defconfig:  Spark configuration update from David
-	  Sidrane (2013-10-24).
-	* drivers/wireless/cc3000/cc3000.c:  CC3000 driver update from David
-	  Sidrane (2013-10-24).
-	* arch/arm/include/stm32/chip.h and arch/arm/src/stm32/Kconfig:
-	  Add support for the STM32F207ZE chip. From Martin Lederhilger
-	  (2013-10-24).
-	* arch/arm/src/stm32/stm32_adc.c and stm32_pwm.c:  Fix some bits
-	  that should have been cleared in a register.  From Martin Lederhilger
-	  (2013-10-24).
-	* configs/olimex-stm32-p207 and other files:  Support for the Olimex
-	  STM32 P207 board added by Martin Lederhilger (2013-10-24).
-	* arch/arm/src/sama5/sam_adc.c, sam_tc.c and sam_tc.h:  Hook in the
-	  timer/counter logic so that it can driver periodic ADC sampling
-	  (2013-10-24).
-	* configs/freedom-kl25z/src/Makefile:  Only build kl_wifi.c if
-	  CONFIG_WL_CC3000 is selected.  From Alan Carvalho de Assis
-	  (2013-10-24).
-	* configs/sama5d3x-ek/src/sam_adc.c:  Integrate support for the
-	  apps/examples/adc into the SAMA5D3x-EK configuration (2013-10-24).
-	* include/nuttx/fs/ioctl.h and arch/arm/src/sama5/sam_adc.c:  Add
-	  and ioctl command that can be used to trigger ADC/DAC conversion
-	  (2015-10-25).
-	* configs/spark:  Spark configuration updated by David Sidrane
-	  (2013-10-25).
-	* drivers/wireless/cc3000 and include/nuttx/wireless/cc3000:
-	  CC3000 driver update from David Sidrane (2013-10-25).
-	* arch/arm/src/sama5/chip/sam_isi.h:  Camera interface register
-	  definitions added (2013-10-26).
-	* audio/ and include/nuttx/audio/audio.h:  Updated audio subsystem
-	  from Ken Pettit (2013-10-27).
-	* drivers/audio/ and include/nuttx/audio/vs1053.h:  Updated
-	  VS1053 driver from ken Pettit (2013-10-27).
-	* configs/mikroe-stm32f4/: Updated configuration for the
-	  Mikroe STM32F4 board from Ken Pettit (2013-10-27).
-	* arch/arm/src/stm32/stm32_spi.c:  DMA-related fixes from Ken
-	  Pettit (2013-10-27).
-	* sched/sched_releasetcb.c: Fix a cornercase:  If sched_releasetcb()
-	  is called as part of a failed pthread startup before the flags
-	  field in the TCB has been initialized, then a crash occurs.
-	  Pointed out by David Sidrane (2013-10-27)
-	* arch/arm/src/sama5/sam_adc.c:  ADC now works in all implemented
-	  modes:  single channel or multiple channel with sequencer support.
-	  software trigger or timer trigger;  ADC channel interrupts or
-	  DMA (2013-10-28).
-	* nuttx/drivers/audio/vs1053.c and nuttx/include/nuttx/audio/audio.h:
-	  Add logic to verify the audio sub-format.  From Ken Pettit (2013-10-28).
-
-6.32 2013-12-07 Gregory Nutt <gnutt@nuttx.org>
-
-	* configs/spark:  Spark configuration updated by David Sidrane
-	  (2013-10-30).
-	* drivers/wireless/cc3000 and include/nuttx/wireless/cc3000:
-	  CC3000 driver updates from David Sidrane (2013-10-13).
-	* arch/arm/src/sama5/chip/sam_ssc.h:  SSC register definition
-	  header file (2013-10-30).
-	* arch/arm/src/sama5/chip/sam_pwm.h:  PWM register definition
-	  header file (2013-10-31).
-	* drivers/mtd/mtd_partition.c: Fix erase block vs page block confusion.
-	  From Ken Pettit (2013-10-31).
-	* arch/arm/src/stm32/stm32_usbdev.c: On a failure to bind the class
-	  driver, the driver reference was being nullified too soon.  This
-	  caused an exception in usbdev_reset() later.  The driver reference
-	  will be nullified later usbdev_unregister when the caller gets the
-	  error.  From David Sidrane (2013-10-31).
-	* drivers/mtd/mtd_config.c and include/nuttx/configdata.h:  Add a container
-	  for an MTD device that can be used to provide a simple, lightweight
-	  interface to configuration data storage that resides on some storage
-	  media that is wrapped as an MTD device.  From Ken Pettit (2013-11-1).
-	* configs/mikroe-stm32f4:  Now uses /dev/config for configuration data
-	  storage.  From Ken Pettit (2013-11-1).
-	* arch/ stack management functions:  Extension and standardization of
-	  stack debug logic.  Now includes coloration of the IDLE and interrupt
-	  stacks as well as the heap.  Suggested by David Sidrane (2013-11-1).
-	* configs/spark/usbmsc:  Add spark USB MSC configuration.  From David
-	  Sidrane (2013-11-1).
-	* fs/fat/fs_fat32util.c:  In one error return case, the error return
-	  value was not being set, making the failure look like success. From
-	  David Sidrane (2011-10-1).
-	* drivers/usbdev/usbmsc.c and usbmsc_scsi.c:  pthread_join() does not
-	  work if called from a different task group than the pthread.  This
-	  is correct behavior, but a problem.  The correct solution would be
-	  configure the USB MSC thread to a task, however, this workaround
-	  from David Sidrane plugs the hole for now (2013-11-1).
-	* drivers/mtd/mtd_config.c:  Reduce configuration header size.  From
-	  Ken Pettit (2013-11-1).
-	* drivers/mtd/sst25.c:  Improved write performance by fixing a bug
-	  that prevented operation in the faster write mode.  The code did
-	  not wait on the last write complete before issuing the WRDI  The
-	  loop in general failed to wait on the fist 2 bytes after the
-	  SST25_AAI if the next 2 were FF FF, then it would reissue the
-	  address but not cancel the write. Reorganized to always wait for
-	  completion after and address with data write and on any data
-	  write so  that the device is complete before WRDI is sent.  From
-	  David Sidrane (2013-11-2).
-	* configs/sama5/src/sam_can.c:  Add CAN initialization logic
-	  and fix a data alignment problem (2013-11-3).
-	* drivers/mtd/mtd_config.c:  Updated configuration driver from
-	  Ken Pettit (2013-11-4).
-	* configs/sim/configdata:  MTD configuration driver unit test for
-	  the simulation platform.  From Ken Pettit (2013-11-4).
-	* configs/mikroe-stm32f4/fulldemo: Configuration updated by Ken
-	  Pettit (2013-11-4).
-	* arch/arm/src/stm32/stm32_usbdev.c:  Correct EP0 state handling
-	  logic when buffers larger than the EP0 packet size are sent.
-	  Also add support for decoded USB trace strings.  From David
-	  Sidrane (2013-11-5).
-	* drivers/usbdev/cdcacm.c, composite.c, usbmsc.c:  uninitialization
-	  logic cause re-use of a stale pointer.  Changed to a two pass
-	  uninitialization for the case of the composite driver:  Memory
-	  resources are not freed until the second uninitialization pass.
-	  From David Sidrane (2011-11-5).
-	* arch/arm/src/sama5/sam_pwm.c and .h:  Add PWM driver for SAMA5
-	  untested on initial checkout (not even incorporated in to build
-	  system) (2013-11-6).
-	* arch/arm/src/sama5/Make.defs and Kconfig:  SAMA5 PWM driver now
-	  incorporated into build and configuration system.  Builds with
-	  no errors (2013-11-6).
-	* configs/sama5d3x-ek:  Add support for the PWM test for the
-	  SAMA5D3x-EK board (2013-11-6).
-	* arch/arm/src/sama5/sam_pwm.c and .h: SAMA5 PWM driver is now
-	  functional (2013-11-7).
-	* include/nuttx/audio/i2s.h:  First cut at an I2S interface
-	  definition.  This initial definition is sparse will will
-	  probably evolve significantly (2011-11-7).
-	* arch/arm/src/sama5/sam_ssc.c and .h:  Skeleton and build setup
-	  for a forthcoming SSC (aka I2S) driver for the SAMA5.  The
-	  initial check-in is just the SAMA5 SPI driver gutted and hacked
-	  to use the I2S interface.  More coming (2013-11-7).
-	* arch/arm/src/stm32 and arch/arm/include/stm32:  Added support for
-	  the STM32F429.  From Ken Pettit (2013-11-7).
-	* configs/stm32f429i-disco:  Support for the STM32F429I-Discovery
-	  board from Ken Pettit (2013-11-7).
-	* arch/arm/src/stm32/stm32_usbdev.c:  The long outstanding bug
-	  involving the handling of OUT SETUP commands has been fixed in
-	  the STM32 F1 USB device driver by David Sidrane (2013-11-7).
-	* configs/spark/composite/cdc-acm.inf:  Windows CDC/ACM driver
-	  provided by David Sidrane (2013-11-7).
-	* configs/spark/usbserial.c:  Add an apps/examples/usbserial
-	  configuration for the Spark.  From David Sidran (2013-11-7).
-	* arch/arm/src/sama5/sam_ssc.c and .h:  First cut of SAMA5
-	  SSC/I2S driver is code complete (2013-11-9).
-	* arch/arm/src/stm32 (numerous files):  OTG FS device and host
-	  drivers extended so that they can support either the OTG FS
-	  peripheral or the OTG HS peripheral (in FS mode).  This was
-	  done as a quick way to get USB support on the STM32F429 which
-	  has only OTG HS.  From Ken Pettit (2013-11-10).
-	* configs/stm32f429i-disco:  Add support for the usbnsh and
-	  usbmsc configurations using the OTG HS peripheral in FS mode.
-	  From Ken Pettit (2013-11-10)
-	* drivers/audio/i2schar.c:  A simple character driver to support I2S
-	  accesses.  This driver in its current state is intended only to
-	  support I2C testing and would not be appropriate to used for any real
-	  driver application. (2013-11-10).
-	* arch/arm/src/kl/kl_pwm.c and .h:  PWM driver for the Freescale
-	  Kinetis KL family from Alan Carvalho de Assis (2013-11-10).
-	* configs/freedom-kl25z:  Add PWM support.  From Alan Carvalho de Assis
-	  (2013-11-10).
-	* drivers/audio/vs1053:  VS1053 worker thread stack size is now
-	  configurable and assigned a name via pthread_setname_np(). From Ken
-	  Pettit (2013-11-10).
-	* libc/audio/lib_buffer.c:  Moved audio/buffer/c to libc/audio/lib_buffer.c.
-	  This file was moved because it contains buffer management functions
-	  that must be available to audio applications.  If it was left in the
-	  audio/ directory then it would not be available to applications in the
-	  NuttX Kernel build (2013-11-10).
-	* arch/arm/src/sama5/sam_ssc.c and Kconfig:  Add configurable support
-	  for SSC loopback mode (2013-11-10).
-	* include/nuttx/audio/i2s.h, arch/arm/src/sama5/sam_ssc.c, and
-	  drivers/audio/i2schar.c:  Improved I2S interface design:  Simplified
-	  audio buffer queuing (2013-11-10).
-	* arch/arm/src/sam34 and arch/arm/include/sam34:  Basic support for
-	  the Atmel SAM4E family.  From Mitko (2013-11-11).
-	* libc/audio/lib_buffer.c:  Remove unused apb_prepare() function
-	  (2013-11-11).
-	* arch/arm/src/stm32:  Added header files and driver framework for the
-	  STM32F429 LTDC framebuffer driver.  From Ken Pettit (2013-11-11).
-	* configs/sama5d3x-ek/src/sam_i2schar.c: Add support for the
-	  apps/examples/i2schar test (2011-11-11).
-	* arch/arm/src/sama5/sam_ssc.c:  I2S loopback test finally works
-	  (2013-11-11).
-	* fs/procfs:  Add a little, primitive procfs file system. (2013-11-13).
-	* fs/binfs/README.txt:  Add a README file for binfs (2013-11-13).
-	* arch/arm/src/stm32/Kconfig:  Add missing setup of CAN TSEG1 and
-	  TSEG2 values.  From Martin Lederhilger (2013-11-14).
-	* arch/arm/src/sama5/sam_pck.c and .h:  Add support for programmable
-	  clock outputs (2013-11-14).
-	* configs/ea3131/nsh:  Converted to use kconfig-frontend tools
-	  (2013-11-14).
-	* arch/arm/src/lpc31: Create configuration and build support for a
-	  forthcoming USB host controller driver (2013-11-14).
-	* arch/arm/src/lpc31/lpc31_ehci.c:  First cut at an EHCI driver
-	  tailed for the LPC31 (2013-11-14).
-	* fs/fs_mount.c:  SMART FS must be included in the conditional
-	  compilation for the set of file systems that require block
-	  drivers.  From Daniel Palmer (2013-11-15).
-	* tools/mkconfig.c:  SMART FS must be included in the conditional
-	  compilation for the set of writable file systems.  Noted by
-	  Daniel Palmer (2013-11-15).
-	* arch/arm/src/sama5/sam_nand.c and .h:  Framework for an MTD driver
-	  that will provide raw access to NAND (2013-11-15).
-	* configs/sama5d3x-ek/src/sam_nandflash.c:  Provides board-specific
-	  memory controller initialize for NAND flash (2013-11-15).
-	* include/nuttx/mtd/mtd.h:  Move include/nuttx/mtd.h to
-	  include/nuttx/mtd/mtd.h where it will, hopefully, soon be joined by
-	  other MTD-related header files (2013-11-15).
-	* drivers/mtd/mtd_onfi.c and include/nuttx/mtd/onfi.h:  Add shared
-	  NAND routines for use with ONFI compatible NAND FLASH devices
-	  (2013-11-15).
-	* configs/ea3131/src/up_usbhost.c:  Board-specific USB host support
-	  for the EA3131 board (2013-11-15).
-	* drivers/mtd/mtd_nand.c, include/nuttx/mtd/nand.h, nand_config.h,
-	  and nand_scheme.h:  Further NAND support (still incomplete).
-	  (2013-11-16).
-	* drivers/mtd/mtd_modeltab.c:  Further NAND support (still incomplete).
-	  (2013-11-16).
-	* drivers/mtd/mtd_nandmodel.c: More NAND support (same story).
-	  (2013-11-16).
-	* drivers/mtd/mtd_rawnand.c and include/nuttx/mtd/nand_raw.h: More
-	  NAND support (2013-11-17).
-	* drivers/mtd/mtd_nandscheme.c:  More NAND support (2013-11-17).
-	* include/nuttx/mtd/nand_ecc.h: More NAND (2013-11-17).
-	* drivers/mtd/hamming.c and mtd_nandecc.c and
-	  include/nuttx/mtd/hamming.h:  Beginning of NAND software ECC
-	  calculations. (2013-11-18).
-	* configs/olimex-lpc-h3131:  Add support for the Olimex LPC-H3131
-	* board.  Does not yet boot (2013-11-18).
-	* arch/arm/src/lpc31xx/lpc31_ehci.c:  Add USB host trace support
-	  (2013-11-19).
-	* configs/olimex-lpc-h3131/include/board.h, src/lpc31_boot.c,
-	  lpc31_leds.c, lpc31_usbhost.c, and lpc_h3131.h:  Add GPIO
-	  support for LED1/2 and for USB power enable and overcurrent
-	  detection (2013-11-19).
-	* configs/olimex-lpc-h3131/nsh/defconfig:  Drop loops-per-msec
-	  count for the Olimex-LPC-H3131.  It seems to be about 25% as
-	  fast as the Embedded Artists EA3131 at the same clocking.
-	  (2013-11-19).
-	* arch/arm/src/arm/up_cache.S and cache.h:  More cache management
-	  functions (2013-11-20).
-	* configs/olimex-lpc-h3131/src/Makefile:  Add SDRAM support.
-	  Untested and probably needs some fine tuining (2013-11-21)
-	* fs/smartfs/README.txt:  Add README for SMARTFS file system.  From
-	  Ken Pettit (2013-11-23)
-	* tools/mkctags.sh:  A script for creating ctags from Ken Pettit
-	  (2013-11-23)
-	* configs/sama5d3x-ek/src/sam_nand.c:  Add support for "auto-mounting"
-	  NAND MTD block driver or NXFFS file system (2013-11-25).
-	* include/mtd/mtd.h:  Packed the geometry structure so that it can
-	  support larger erase block sizes without increasing the size of
-	  the geometry structure (2013-11-27).
-	* drivers/mtd/sst25xx.c:  Add another SST25 SerialFlash driver.  This
-	  one differs from sst25.c because it supports larger SST25 parts:  In
-	  the larger parts support page write instead of byte/word writes like
-	  the smaller parts.  From Ken Pettit (2013-11-28).
-	* drivers/mtd/smart.c: Fixes a minor bug with SMART partition number
-	  reporting (that would only be seen if both partition support and
-	  multi-root directory support are enabled at the same time).  From Ken
-	  Pettit (2013-11-28).
-	* arch/arm/src/stm32/chip/stm32f40xxx_gpio.h: Add support for GPIOK and
-	  GPIOJ.  From Ken Pettit (2013-11-28).
-	* configs/stm32f429i-disco/extflash, Kconfig, include/board.h,
-	  src/stm32f429i-disco-internal.h, up_nsh.c, and up_spi.h:  Add a
-	  configuration and board support for an external SST25 FLASH.  From Ken
-	  Pettit (2013-11-28).
-	* fs/fs_inode.c: The inode semaphore must be re-entrant.  Here is the
-	  re-entering path that I found:  (1) USB host connects to FLASH drive
-	  and creates /dev/sda, (2) /dev/sda is mounted, (3) FLASH drive is
-	  removed but /dev/sda is not destroyed because there is still a
-	  reference on the device because of the mount, (4) umount() is called,
-	  taking the inode semaphore, now the driver tries to destroy the block
-	  driver by calling unregister_blockdriver().  But (5)
-	  unregister_blockdriver() also takes the inode semaphore causing a
-	  deadlock if the inode semaphore is not re-entrant. (2013-11-28).
-	* configs/viewtool-stm32f107:  Add board support for the ViewTool
-	  STM32F103/F107 board with the STM32F107VCT6 installed.  Initial
-	  check-in is the unverified board-support framework only
-	  (2013-11-30).
-	* configs/viewtool-stm32f107/src/stm32_buttons.c and stm32_leds.c:
-	  Add support for LEDs an buttons on the ViewTools STM32F107 board
-	  (2013-11-30).
-	* fs/nxffs/nxffs_initialize.c:  First of probably several changes for
-	  NAND FLASH.  NAND can report read errors because of bad ECC.  Logic
-	  in NXFFS must account for it and not just throw in the towel every
-	  time a read fails (2013-11-30).
-	* drivers/mtd/mtd_nand* and arch/arm/src/sama5/sam_nand.c:  NAND
-	  accesses now work (at least with software ECC and now DMA).  Still
-	  lots of testing to be done (2013-11-30).
-	* fs/nxffs/nxffs_dump.c: Do not abort on a read error.  Just not
-	  the error and continue.  Otherwise, we would not be able to dump
-	  NAND FLASH (2013-11-30).
-	* fs/nxffs:  All read error logic has been revisited and modified in
-	  most places.  If we are using NAND, then read errors probably mean
-	  that the block that was read contains uncorrectable bit errors.  In
-	  this case, we cannot just give up and abort the operations.  Rather,
-	  we need to treat read error like normal bad blocks in order to work
-	  with NAND (2013-12-2).
-	* fs/nxffs/Kconfig and nxffs_initialize.c:  Make the start up scan of
-	  the media option. It just takes to long! (2013-12-02).
-	* drivers/mtd/mtd_nand.c: Fix a typo in calculation of page number
-	  (2013-12-02).
-	* drivers/mtd/README.txt:  New README file (2013-12-04).
-	* arch/arm/src/lm/lm_start.c:  Don't initialize .data if not running
-	  from FLASH (2013-12-05).
-	* fs/fat/fs_configfat.c: Fix a typo in the FAT16 formatting logic.
-	  Was this ever able to format a FAT16 volume? (2013-12-05).
-	* drivers/mtd/mtd_nand.c:  Check if block number is within range at
-	  the top of the loop not the bottom.  Otherwise, we will do a bogus
-	  transfer with the out-of-range block before we test it (2013-12-05).
-
-6.33 2014-01-30 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/include/a1x and src/a1x:  Directory structure to support
-	  the Allwinner A10.  Not much there on the initial check-in
-	  (2013-12-7).
-	* configs/pcduino-a10:  Directory structure for the pcDuino board.  This
-	  board is based on the Allwinner A10 (2013-12-7).
-	* arch/arm/src/a1x/a1x_boot.c and chip/a1x_intc.h:  More A10 logic
-	  (2013-12-8).
-	* arch/arm/src/a1x/a1x_irq.c:  A10 interrupt handling logic (partial)
-	  (2013-12-8).
-	* drivers/video/ov2640.c: An OV2640 camera driver that will be used to
-	  verify the SAMA5D3x-EK ISI peripheral (2013-1209).
-	* sama5d3x-ek/ov2640 and src/sam_ov2640.c.  Board logic to test the SAMA5D3
-	  ISI peripheral usign the OV2640 camera (2013-12-9).
-	* arch/arm/src/a1x/chip/a1x_uart.h:  A10 UART register definition
-	  header file (2013-12-9).
-	* include/nuttx/video/fb.h:  Move fb.h to include/nuttx/video/
-	  (2013-12-10).
-	* include/nuttx/video/rgbcolors.h:  Move rgbcolors.h to include/nuttx/video.
-	  (2013-12-10).
-	* include/nuttx/fs/smart.h:  Move smart.h to include/fs/smart.h
-	  (2013-12-10).
-	* include/nuttx/fs/ramdisk.h:  Move ramdisk.h to include/fs/ramdisk.h
-	  (2013-12-10).
-	* arch/arm/src/a1x/chip/a1x_pio.h and a10_piocfg.h:  PIO register
-	  definition header files (2013-12-10).
-	* arch/arm/src/a1x/a1x_pio.c and .h:  Support for PIO configuration
-	  (2013-12-11).
-	* libc/misc/lib_match.c:  Pattern matching logic extended to handle
-	  matches to sets of characters and ranges of character values.  From
-	  Ken Pettit (2013-12-12).
-	* fs/procfs, drivers/mtd, fs/smartfs, includes/nuttx/fs, .. to many
-	  files to list:  Extensive changes by Ken Pettit to extend procfs/
-	  functionality.  Includes some incomplete changes related to
-	  SmartFS (2013-12-12).
-	* configs/stm32f429i-disco: Add support for procfs/ MTD part names.
-	  From Ken Pettit (2013-12-12)
-	* arch/arm/src/a1x/chip/a1x_timer.h:  Timer register bit definitions
-	  (incomplete on initial check-in) (2013-12-12).
-	* lbc/time/lib_strftime.c: Need null-termination on the string
-	  generated by strftime().  From Max Holtzberg (2013-12-12).
-	* sched/nanosleep.c and include/time.h:  Add nanosleep() (2013-12-12).
-	* libc/unistd/lib_sleep.c and lib_usleep.c.  Move sleep() and
-	  usleep() from sched/sleep.c and usleep.c to libc/unistd.  These
-	  functions now just call nanosleep(). (2013-12-13).
-	* syscall/ and include/sys/syscall.h:  Remove sleep and usleep
-	  system calls.  Add nanosleep system call (2013-12-13).
-	* arch/arm/src/a1x/a1x_timerisr.c:  Timer interrupt handler for the
-	  A10 (2013-12-13).
-	* arch/arm/src/a1x/a1x_config.h:  Header file to keep track of A10
-	  configuration decisions (2013-12-13).
-	* arch/arm/src/a1x/a1x_lowputc.c, a1x_serial.c, and a1x_serila.h:
-	  Beginning of an A10 serial driver.  From Alan Carvalho de Assis
-	  (2013-12-13).
-	* fs/procfs/procfs_utils.c:  Move some re-usable functions out of
-	  fs_procfsproc.c into a utility file (2013-12-14).
-	* fs/procfs/fs_procfsuptime.c:  Supports /proc/uptime (2013-12-14).
-	* graphics/nxconsole/nxcon_font.c:  Fix a typo that causes a compile
-	  error when CONFIG_NXCONSOLE_BPP < 8.  From Librae (2013-12-15).
-	* fs/procfs/fs_procfsproc.c:  procfs now shows information about
-	  the group that each thread belongs:  Like parents, group member,
-	  open file, and open sockets (2013-12-15).
-	* fs/procfs/fs_procfsproc.c:  Now shows task stack information
-	  (2013-12-15).
-	* arch/arm/src/armv7-a/cp15.h:  Review A9 TRM and updated CP15
-	  register definitions accordinglyg (2013-12-16).
-	* Makefile.unix: Now has supports qconfig and gconfig targets.
-	  These tools will use the Qt and GTK versions of the kconfig-
-	  frontends configuration tools (if you built them) (2013-12-16)
-	* arch/arm/src/armv7-a/arm_head.h:  Fix some errors in the cache
-	  invalidation logic (only seem to matter for Cortex-A8) (21-3-12-19).
-	* Kconfig and all Make.defs files:  Add CONFIG_DEBUG_NOOPT.  Now
-	  you can independently enable/disable debug symbols and optimization
-	  (2013-12-20).
-	* configs/README.txt and Documentation/NuttxPortingGuide.html:
-	  Remove documentation of NuttX configuration variables.  Since
-	  converting to the kconfig-frontend tools, the NuttX configuration
-	  is now documented in the Kconfig files and summarized in the
-	  autogenerated Documentation/NuttXConfigVariables.html file.
-	  This old configuration variable documentation is now a liability
-	  and, hence, was removed (2013-12-20).
-	* arch/Kconfig, arch/arm/Kconfig, arch/arm/include/x/chip.h, and
-	  and arch/arm/src/x/x_irq.c where x={kinetis, lm, lpc17xx, lpc43xx,
-	  sam34, or stm32}:  Beginning of support for nested, high priority
-	  interrupts.  Lots more still needs to be done (2013-12-21).
-	* arch/arm/src/armv7-m/up_exception.S and arch/arm/src/x/x_vectors.S:
-	  where  x={kinetis, lm, lpc17xx, lpc43xx, sam34, or stm32}: completes
-	  the basic implementation of nested, high priority interreupts.
-	  Still untested and need documentation (2013-12-21).
-	* configs/stm3210e-eval/buttons: Converted to use kconfig-frontends
-	  tools (untested) (2013-12-22).
-	* configs/Kconfig, configs/viewtool-stm32f107/include/board-stm32f103vct6.h,
-	  and /board-stm32f107vct6.h:  The viewtool board can now be configured
-	  to support either the STM32F103VCT6 or the STM32F107VCT6 (2013-12-22).
-	* configs/Kconfig, README.txt, viewtool-stm32f107/highpri, Kconfig,
-	  README.txt, and src/stm32_highpri.c:  This is the initial framework
-	  for a test of the high priority, nested interrupt logic.  Still
-	  incomplete and does not yet run (2013-12-22).
-	* arch/arm/src/armv7-m/ram_vectors.h and up_ramvec_initialize.c:
-	  Correct alignment of the RAM vector table (2013-12-22).
-	* Kconfig: Support configuration of interrupt controller debug output
-	  (2013-12-22).
-	* configs/viewtool-stm32f107/scripts:  Need to do some special things
-	  in linking of the common vectors are used (2013-12-22).
-	* arch/arm/include/*/irq*.h:  Add definition NR_VECTORS so that the RAM
-	  vector logic can know how many vectors there are.  NR_IRQS is often
-	  not equal to NR_VECTORS (2013-12-23).
-	* arch/arm/src/*_vectors.S:  Standardize the name of the vector table
-	  and the name of the common vector handling logic so that the MCU-
-	  independent logic and work with these (2013-12-23).
-	* configs/viewtool-stm32f107/scripts: Move the RAM vector tables to the
-	  beginning of SRAM.  It seems to require this alignment.  Also, we
-	  don't need different scripts for the CMNVECTOR case now that the vector
-	  table has a common name.
-	* arch/arm/src: armv-7/up_exception.S and xxx/xxx_vectors.S where
-	  xxx={kinetis, lm, lpc17xx, sam34, and stm32}:  Modified register usage
-	  when saving the context on the stack:  In order to handler nested
-	  interrupts, the stack pointer must be used so that when it is
-	  decremented, the contents on the stack are protected from the nested
-	  interrupt handling (2013-12-23).
-	* arch/Kconfig: The CONFIG_ARCH_INT_DISABLEALL feature is disabled (i.e.,
-	  depends on EXPERIMENTAL).  That is because the current implementation
-	  will not work because interrupts get disabled in the interrupt handler
-	  too, defeating the nesting of interrupts.  The fix is easy: It just
-	  needs more levels of priority of disabling interrupts vs interrupt
-	  handling (2013-12-23).
-	* configs/viewtool-stm32f107/src/stm32_highpri.c:  Improved debug output
-	  (2013-12-23).
-	* drivers/lcd/memlcd.c and include/nuttx/lcd/memlcd.h:  Support for the
-	  Sharp Memory LCD from Librae (2013-12-23).
-	* configs/maple/nx and src/:  Add support for a custom Sharp Memory
-	  LCD on the Maple board.  From Librae (2013-12-23).
-	* configs/viewtool-stm32f107/netnsh:  Add a NSH configuration that
-	  supports networking with the DP83848C module installed (2013-12-25).
-	* configs/viewtool-stm32f107/src/stm32_nsh.c, stm32_mmcsd.c, stm32_usb.c,
-	  and stm32_usbmsc.c:  Lay out basic framework for USB and SD card
-	  support.  Code is incomplete and has been neither built nor tested
-	  (2013-12-25).
-	* nuttx/arch/arm/src/stm32/Kconfig, chip/stm32f103vc_pinmap.h,
-	  stm32f105vb_pinmap.h, and stm32f107vc_pinmap.h:  Fix configuration and
-	  pin definition that would prevent building USB for the connectivity and
-	  performance lines (2013-12-25).
-	* stm32l15xxx_pinmap.h: Fix a typo in USB pin definitions (2013-12-25).
-	* configs/viewtool-stm32f107:  Fix building of USB for F103 and F107.
-	  F103 has device only; F107 has OTG FS (2013-12-25).
-	* arch/arm/src/stm32/stm32f10xxx_rcc.c and chip/stm32f10xxx_rcc.h:  Add
-	  clocking support for STM32F107 USB OTG FS (which does not work)
-	  (2013-12-26).
-	* configs/viewtool-stm32f107:  Updates to USB for F103 and USB OTG FS
-	  for F107 (2013-12-16).
-	* arch/arm/src/stm32/chip/stm32f3xxxx_pinmap.h:  Fix pin definition names
-	  for SPI2 MOSI and MISO. Noted by Brian Webb (2013-12-27).
-	* graphics/nxmu, nxsu, and nxglib and libc/nx, nxmu, and nxglib:  Massive
-	  reshuffling of files with (hopefully) no logic changes.   This
-	  reshuffling is necessary if we ever want to build graphics applications
-	  as kernel builds.  There is still more today (NXTK and NXFONTS need to
-	  be moved to libc as well) (2013-12-27).
-	* Move libc/nx, nxmu, and nxglib to a new library, libnx.  The NX
-	  graphics is not properly a part of libc (2013-12-28).
-	* Move graphics/nxfonts to libnx/nxfonts (2013-12-28).
-	* Move graphics/nxtk to libnx/nxtk (2013-12-28).
-	* syscalls: Need to add sem_timedwait() (2013-12-28)
-	* Move more files from graphics/nxmu to libnx/nxmu (2013-12-29).
-	* graphics/nxmu/nx_start.c: NX server start-up wrapper function to
-	  simplify starting the NX server from within the RTOS (2013-12-29).
-	* configs/stm3240g-eval/kernel and configs/stm3240g-eval/scripts:  Port
-	  kernel build logic from the STM32F4Discovery to the STM3240G-EVAL.
-	  This will eventually support testing of the kernel mode NX server
-	  (2013-12-29).
-	* configs/stm3240g-eval/nxwm:  Converted to use the kconfig-frontend
-	  tools (2013-12-29).
-	* configs/stm3240g-eval/knxwm:  Add a kernel mode NxWM build
-	  configuration (not yet verified) (2013-12-29).
-	* Moved configs/stm3240g-eval/src/up_cxxinitialize.c to
-	  apps/platform/stm3240g-eval/up_cxxinitialize.c:  Now it is available
-	  in user-space in the kernel mode build (2013-12-29).
-	* graphics/nxbe, nxsu, libnx/nxmu, and nxtk:  Need to be consistent with
-	  which allocator is used in the different configurations.  Always uses
-	  the user-space allocator because that one is required in certain
-	  configurations (2013-12-30).
-	* include/nuttx/kthread.h:  Move kernel thread definitions out of
-	  os_internal.h so that the rest of the OS can start kernel threads as
-	  well (2013-12-30).
-	* configs/sim/mount/defconfig:  Converted to use kconfig-frontends
-	  tools (2013-21-31).
-	* configs/z16f2800100zcog/nsh:  Add a Z16F NSH configuration.  Does not
-	  yet work (2014-1-1).
-	* arch/arm/src/stm32/stm32_serial.c: Single-wire UART support from
-	  Thomas Grubler (2014-1-2).
-	* tools/configure.c and mkdeps.c:  Fixes for Windows build issues
-	  from Max Holtzberg (2014-1-4).
-	* configs/olimex-stm32-p107/nsh/Make.defs:  Add native Windows build
-	  support for the Olimex STM32 P107.  From Max Holtzberg (2014-1-4).
-	* Makefile.win:  Changes for native Windows build:  Fix creation of
-	  a .version file if one does not exist.  Make sure that the APPDIR
-	  environment variable is set before configuring.  From Max Holtzberg
-	  (2014-1-4).
-	* configs/viewtool-stm32f107/src/stm32_ssd1289.c:  Add support for
-	  Viewtool SSD1289-based LCD (untested on initial checkin)  (2013-1-5).
-	* arch/arm/include/syscall.h and armv7-a/syscall.h:  Add the syscall.h
-	  header file needed for the Cortex-A architecture (2014-1-5).
-	* arch/arm/src/a1x/a1x_serial.c:  Remove bad flow control logic.  Add
-	  missing interrupt handling logic for UART4-7 (2014-1-6).
-	* nuttx/tools/mkconfig.c: Cast size to unsigned in calculation of
-	  CONFIG_RAM_END to avoid complains about integer overflow (2013-1-6).
-	* nuttx/tools/mkconfig.c: Back out the last change, this causes
-	  problems for assembly language.  How to prevent the integer over-
-	  flow warnings? (2014-1-6).
-	* arch/arm/src/a1x/a1x_serial.c: Handle BUSY interrupt (2014-1-6).
-	* arch/arm/src/armv7-a/arm_head.S and arm_pghead.S:  Add more nop's
-	  after enabling the MMU.  The cortex-a8 seems to need these
-	  (2014-1-7).
-	* arch/arm/src/a1x/a1x_serial.c: Correct handling of the BUSY
-	  interrupt (2014-1-7).
-	* include/sys/types.h:  Add a bogus rsize_t type (2014-1-7).
-	* libc/stdio/lib_gets_s.c:  Add a quick'n'dirty implementation of
-	  gets_s() which replaces gets() in C11 (2014-1-7).
-	* libc/stdio/lib_fopen.c:  Add support for new C11 exclusive open
-	  ("x") (2014-1-7)
-	* include/threads.h:  First crude cut at a C11 threads.h header
-	  file (just maps to pthreads) (2014-1-7).
-	* libc/stdio/lib_libfgets.c:  Common implementation supports all
-	  of the slightly different requirements of gets(), gets_s(), and
-	  fgets() (2014-1-7).
-	* arch/arm/include/stm32/chip.h and chip/stm32f103ze_pinmap.h:
-	  various fixes for STM32F103ZE SPI3.  From Steve Redler IV
-	  (2014-1-7).
-	* graphics/nxsu/Make.defs:  Typo that crept into build in recent
-	  NX reorganization.  Found by Steve Redler IV (2014-1-7).
-	* graphics/nxsu/:  Another typo from the
-	  recent NX reorganization from Steve Redler IV (2014-1-7).
-	* graphics/nxbe/nxbe_closewindow.c, nx_close.c, nx_constructwindow.c,
-	  nx_open.c, and nx_openwindow.c:  Needs to use kuzalloc and kufree,
-	  not umm_zalloc and umm_free.  Additional typo in nx_constructwindow.c
-	  (wnd should be hwnd). Also noted by Steve Redler IV (2014-1-7).
-	* configs/viewtool-stm32f107/src/stm32_touchscreen.c (and other
-	  files):  Add support for the XPT2046 touchscreen controller on
-	  the Viewtool LCD module connected to the Viewtool STM32F103
-	  board (2014-1-9).
-	* libc/strings/lib_stpcpy.c:  Add stpcpy() (2014-1-9).
-	* arch/arm/src/a1x/a1x_lowputc.c and a1x_serial.c:  Mystery
-	  finally solved:  The A10 serial clock is the OSC24M clock.
-	  Thanks to Alan Carvalho de Assis (2014-1-10)
-	* binfmt/binfmt_loadmodule.c: Fix a memory leak (2013-1-11).
-	* configs/stm3vldiscovery: Support for the STM32VL-Discovery board.
-	  Contributed by Alan Carvalho de Assis (2014-1-12).
-	* net/net_close.c, net/Kconfig, include/nuttx/net/net.h, and
-	  include/sys/socket.h: Add support for the SO_LINGER socket option.
-	  Extended from logic provided by Jason Jiang.  Enabled with
-	  CONFIG_NET_SOLINGER.  At this point, it has only been verified that
-	  the changes does not seem to do any harm (2014-1-13).
-	* net/connect.c and net/uip/uip_callback.c: prevent tcp_connect
-	  callback from being double freed.  From Max Holtzberg (2014-1-13).
-	* net/Kconfig and include/nuttx/net/uip/uipopt.h: Add configuration
-	  support for forthcoming TCP write buffering (2014-1-13).
-	* net/net_send_buffered.c, net_send_unbuffered.c, and
-	  uip/uip_tcpwrbuffer.c:  First set of changes to bring in Jason
-	  Jiang's TCP write buffering logic.  Still not complete but
-	  apparently harmless if not selected. (2014-1-13).
-	* All of Jason Jiang's TCP write buffering logic is checked in.
-	  Unfortunately, it does not yet work (2013-1-14).
-	* configs/px4fmu-v2_upstream:  Configuration for testing simple
-	  configurations on the PX4FMU v2.  This version is incomplete
-	  for the PX4 application and is not a replacement for the version
-	  in the PX4 GIT repository.
-	* fs/fat/fs_fat32.c: A correction to FAT cluster allocation from
-	  Tridge via Lorenz Meier (2014-1-14).
-	* net/net_clone.c:  If CONFIG_NET_TCP_WRITE_BUFFERS is selected,
-	  then the socket-related write buffering information must copied
-	  with the other cloned socket data (2014-1-14).
-	* net/net_close.c:  If CONFIG_NET_TCP_WRITE_BUFFERS is selected,
-	  then it is necessary to free the write buffer callback structure
-	  when the socket is closed (2014-1-14).
-	* fs/fat/fs_fat32.c:  Fix some root directory logic that was
-	  conditionally done only for FAT 32.  Apparently this needs to
-	  done for all FAT types.  From Tridge via Lorenz Meier
-	  (2014-1-14).
-	* arch/arm/src/armv6-m/up_doirq.c and armv7-m/up_doirq.c and all
-	  implementations of up_maskack_irq() for all Cortex-M architectures:  Do
-	  not disable and enable the IRQ on each interrupt.  Because (1)
-	  interrupts are already disabled on interrupt entry, (2) this
-	  interferes with controlling the IRQ interrupt setting from interrupt
-	  handlers, and (3) up_disable_irq() does not work anyway so that this
-	  has never done anything (2014-1-15).
-	* All implementations of up_disable_irq() for all Cortex-M3 and M4
-	  architectures:  To enable an interrupt on the Cortex-M3/4 CPU, you
-	  need to set a bit in the ISER registet on the Cortex-M3/4 CPU, you
-	  need to set a bit in the ISER register.  To disable the interrupt, you
-	  need to set a bit in the ICER register.  Existing logic was trying to
-	  disable interrupts by clearing the bit in the ISER register.  That will
-	  not work; writing a '0' to the ISER register has no effect.  That
-	  means that up_disable_irq() was doing nothing!  It turns out that that
-	  is not really important because up_disable_irq() is not really used
-	  for that purpose.  But some spurious STM32 ADC interrupts have been
-	  reported to me and this turned out to be the cause in that case.  My
-	  concern now that up_disable_irq() works is that there may now be
-	  unmasked bugs that leave devices in the disabled state?  Thanks to
-	  Manuel St�hn for the tip(2014-1-15).
-	* libc: Move strtol(), strtoll, strtoul(), strtoull(), and strtod() from
-	  libc/string to libc/stdlib where they belong (2014-1-16).
-	* configs/Kconfig:  Board configuration sub-directory can now be
-	  specified.  The default need not be used.  This is really only
-	  useful when CONFIG_ARCH_BOARD_CUSTOM is selected and there is no
-	  meaningful default sub-directory (2014-1-16).
-	* configs/Kconfig:  Backed out the previous change for two reasons:
-	  (1) it has a bad side effect in that the sub-directory setting
-	  no longer tracks the board setting, and (2) you still can't
-	  source the Kconfig file from the custom board directory (2014-1-16).
-	* Makefile.unix, Makefile.win, and configs/Kconfig:  After thinking a
-	  little harder, I re-implemented the backed-out custom configuration
-	  feature.  The new version does not have bad side-effect (1) (but still
-	  has bad side-effect (2)) (2014-1-16).
-	* arch/x86/Kconfig and configs/qemu-i486/nsh/Make.defs and
-	  ostest/Make.defs:  Add a configuration option to select the -m32
-	  compiler option when building for a 32-bit target on a native 64-bit
-	  compiler (2014-1-18).
-	* include/ctype.h: Typo in macro name: iscntrl, not iscontrol (2104-1-17)
-	* libc/unistd/lib_getopt.c:  If there are no arguments (argc == 1), then
-	  getopt() will leave the optind variable in an undefined state (2014-1-20).
-	* configs/olimex-stm32-p107:  Fails to build if SPI3 for UEXT is not
-	  remapped.  From Max Holtzberg (2014-1-21).
-	* Several network related files:  Changes from Max Holtzberg to improve
-	  how network status is reported.  New controls to manage carrier
-	  detect.  (2014-1-21).
-	* configs/16z:  Add basic support for the 16z board. The 16z board is
-	  based on the ZiLOG ZNEOZ16F2811AL20EG part.  See
-	  https://github.com/toyaga/16z for further information (2014-1-22),
-	* tools/Config.mk: 'cypath' must be called if we are using a Windows
-	  native toolchain with the Cygwin 'make' to convert paths to proper
-	  Windows paths.  From Richard Cochran (2014-1-23).
-	* /arch/arm/src/Makefile: dependency directory list is now computed
-	  from the VPATH.  From Richard Cochran (2014-1-23).
-	* arch/arm/src/efm32 and include/efm32:  Basic support for the EFM3
-	  processor family from Richard Cochran (2014-1-23).
-	* configs/efm32-dk3650:  This is Energy Micro's development kit for
-	  the Leopard Gecko MCU, which is an ARM Cortex-M3 device.  From Richard
-	  Cochran (2014-1-23).
-	* arch/arm/src/armv7-m/up_memcpy.S: Assembler changes with the gcc-47
-	  distribution from ARM mean that we need to be explicit about branch
-	  sizes; one or more of the wide branch opcodes results in bad table
-	  branching.  From Mike Smith (2014-1-23).
-	* Many files: renamed up_buttoninit() to board_button_initialize to
-	  better conform to the naming standard.  Now ONLY prototypes in
-	  include/nuttx/arch.h (2014-1024).
-	* Rename up_buttons() to board_buttons() for the same reason (2014-
-	  1-14).
-	* Rename up_irqbutton() to board_button_irq() (2014-1-24).
-	* Rename up_ledinit() to board_led_initialize() (2014-1-24).
-	* Rename up_ledon() to board_led_on() and up_ledoff() to board_led_off()
-	  (2014-1-24).
-	* arch/x86/src/qemu-i486/gemu_head.S:  Patch from Matt Campbell
-	  to fix 'Error: .size expression for idle_stack does not evaluate to
-	  a constant" (2014-1-25).
-	* arch/arm/include/efm32, arch/arm/src/efm32, and configs/efm32-dk360:
-	  Removed all EFM32 support.  Not yet ready to be fielded (2014-1-27).
-	* arch/arm/src/armv7-a/arm_head.S, sama5/sam_boot.c, and several other
-	  files:  Now supports execution from NOR FLASH with .data and .bss in
-	  SDRAM.  This was not possible prior to this because .bss and .data
-	  were initialized before SDRAM was configured.  This logic is still
-	  kind buggy. (2014-1-28).
-	* arch/arm/src/armv7-a/arm_head.S and arm_pghead.S:  Back off to a
-	  somewhat less efficient loop for initializing .data and .bss.  The
-	  original, efficient logic violated the ARM C ABI.  It was okay when
-	  called from boot logic, but not when called from C logic.  This fixes
-	  bugginess reported on 2014-1-28. (2014-1-29).
-
-7.1 2014-03-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/lm/lm_serial.c:  Fix cut'n'paste error that prevented
-	  UARTS2-7 from being used with the LM4F120 Launchpad (2014-02-03).
-	* configs/stm32f4discovery/src: Almost everything renamed to conform
-	  to the ever-evolving naming standard (2014-02-03).
-	* arch/arm/src/a1x/a1x_serial.c:  Had the same cut'n'paste error
-	  that the LM4f120 Launchpad had (2013-02-03).
-	* Documentation/NuttXCCodingStandard.html:  Add a coding standards
-	  document.  Very boring stuff (2014-2-6).
-	* Several changes to restore the native Windows build (2014-2-7).
-	* arch/arm/src/lpc17xx/lpc17_usbhost.c: Fix an compilation error
-	  that crept into the LPC17xx USB host driver.  What happened here?
-	  (2014-2-9).
-	* drivers/usbhost/usbhost_hidmouse.c and other files:  Add support
-	  for a HID boot mouse device.  It compiles but is otherwise
-	  completely untested on initial check-in (2014-2-9).
-	* configs/olimex-lpc1766stk/src/lpc17_hidmouse.c and hidmouse: Add
-	  support of a test of the USB HID mouse (2014-2-9).
-	* drivers/usbhost/usbhost_hidmouse.c: The driver appears to be
-	  functional.  But there are usability issues:  How do you use the
-	  mouse with no cursor?  The HID mouse currently emulates a touchscreen
-	  driver.  That would work in the long run for several reasons (see the
-	  top-level TODO list for details) (2014-2-9).
-	* include/nuttx/input/mouse.h and drivers/usbhost/usbhost_hidmouse.c:
-	  Defined a mouse interface that is very similar to a touchscreen
-	  interface, but allows reporting of all mouse buttons.  Also, unlike
-	  touchscreen drivers, mouse drivers need to report positional data
-	  with no button is pressed so that the mouse position can drive a
-	  cursor (2014-2-10).
-	* drivers/usbhost/usbhost_hidmouse.c, include/nuttx/input/mouse.h, and
-	  include/nuttx/usb/hid.h:  Add support for a mouse wheel (2014-2-10).
-	* drivers/lcd/mio283qt9a.c and include/nuttx/lcd/mio283qt9a.h:  Support
-	  for the MIO283QT9A LCD.  From Toby Duckworth (2014-2-10).
-	* configs/mikroe-stm32f4/src/up_mio283qt9a.c: The Mikroe STM32F4 can
-	  now support the newer MIO283QT9A LCD. From Toby Duckworth (2014-2-10).
-	* MANY files changes based on complaints from the tool CppCheck.  Several
-	  latent bugs were fixed (and most likely some new typos were introduced)
-	  (2014-2-10).
-	* arch/arm/include/samd and src/samd:  Basic framework to support Atmel
-	  SAMD20 Cortex-M0+ chips.  Initial check-in is incomplete; this is a
-	  work in progress (2014-2-12).
-	* configs/samd20-xplained:  Framework to support the Amtel SAMD20
-	  Xplained Pro.  Initial check is just an unverified, rough port of
-	  the SAM4L Xplained Pro configuration (2014-2-12).
-	* arch/arm/src/stm32/stm32_serial.c:  Fix cloned typo:  FLOWCONTROL
-	  vs FLOWCONROL (2014-2-14).
-	* net/uip/uip_tcptimer.c: Back out a small part of the 6.33 write
-	  buffering changed.  David G says that this causes problems in
-	  connecting to a server (2014-2-15).
-	* The basic SAMD20 Xplained Pro port is complete but still untested
-	  (2014-2-16).
-	* sched/task_terminate.c:  Always returns an error because the
-	  return value was not being set correctly.  From Gosha (2014-2-18).
-	* stm32f429i-disco/ostest-fpu:  OS test for FPU-enabled system from
-	  David Alessio (2014-2-18).
-	* Other misc changes to support FPU on STM32F429 Discovery from
-	  David Alessio (2014-2-18)
-	* stm32f429i-disco/src:  Files renamed to make more consistent
-	  with current board file naming conventions (2014-2-18).
-	* stm32 SPI: Disable SPI before changing CR1 register.  From David
-	  Sidrane (2014-2-18).
-	* stm32 TIM: Set CCMR when selecting timer channel.  From David
-	  Sidrane (2014-2-18).
-	* configs/spark: Board configuration updated by David Sidrane
-	  (2014-2-19).
-	* libc/stdio/lib_sscanf.c:  Bug fixes from David Sidrane (2014-2-18).
-	* nuttx/drivers/wireless/cc3000 and nuttx/include/nuttx/wireless/cc3000:
-	  Numerous updates to the CC3000 driver from David Sidrane (2014-2-18).
-	* nuttx/configs/stm3240g-eval/webserver: Converted to use the
-	  kconfig-frontends tools by Alan Carvalho de Assis (2014-2-18).
-	* configs/mbed:  All mbed configurations have been converted to use
-	  the kconfig-frontends tools (unverified) (2014-2-18).
-	* fs/fs_opendir.c, fs_readdir.c, et al: Modified so that errors
-	  will not be reported if you attempt to list a empty pseudo-directory
-	  (2014-2-19).
-	* fs/fs_rmdir.c: 'rmdir' can now be used to remove empty directories in
-	  the pseudo-filesystem such as might be left after umounting a
-	  file system (2014-2-19).
-	* fs/fs_mkdir.c: 'mkdir' can now be used to create empty directories in
-	  the pseudo-filesystem (2014-2-19).
-	* drivers/lcd/mio283qt9a.c: Bug fix from Toby Duckwork (2014-2-19).
-	* fs/fs_rename.c: 'rename' can now be used to rename nodes in the
-	  pseudo-filesystem (2014-2-19).
-	* arch/arm/src/samd/sam_sercom.c:  Move some common SERCOM logic
-	  from the USART-specific files to a share-able file where it can
-	  also be used by SPI and I2C drivers (2014-2-19).
-	* arch/arm/src/samd/sam_spi.c:  Add framework for a SAMD SPI driver.
-	  The initial check-in is a crude port of the SAMA5 SPI driver with
-	  a lot of missing logic (2014-2-19).
-	* arch/arm/src/lm/lm_lowputc.c and lm_serial.c:  Several errors
-	  are unmasked with UARTs > UART2 are enabled.  From Gosha (2014-2-19).
-	* arch/arm/src/samd/sam_spi.c:  The SPI driver is code complete,
-	  but untested (2014-2-20).
-	* configs/olimex-lpc1766stck/ftpc:  Configuration convert to use
-	  the kconfig-frontends tools by Alan Carvalho de Assis (2014-2-20).
-	* fs/fs_mkdir.c: 'unlink' can now be used to remove things from the
-	  pseudo-filesystem.  A new configuration option as been added:
-	  CONFIG_DISABLE_PSEUDOFS_OPERATIONS that effectively can be set
-	  back out these recent changes in rmdir, mkdir, unlink, and rename
-	  for operations on the pseudo-filesystem (2014-2-20).
-	* Kconfig:  Add an option to select default values for configuration
-	  variables based upon whether you want a smaller footprint or more
-	  features.  CONFIG_DEFAULT_SMALL is used in sched/Kconfig and
-	  fs/Kconfig and in apps/.  It turns out this this is not very useful
-	  if you are modifying existing configurations because then the
-	  defaults do not apply (2014-2-20).
-	* arch/arm/src/sam34/chip/sam4e_vectors.h:  Add vector definitions
-	  for the SAM4E (2014-2-21).
-	* arch/arm/src/sam34/chip/sam4e_memorymap.h:  Add SAM4E memory map
-	  (2014-2-21).
-	* arch/arm/src/sam34/sam4e_gpio.h, sam4e_periphclks.h, and chip/sam4e_pio.h:
-	  Add PIO support for the SAM4E (2014-2-21).
-	* configs/stm3220g-eval/nsh/defconfig: Converted to use kconfig-frontends
-	  by Alan Carvalho de Assis (2014-2-10)
-	* configs/*/defconfig: Comment out all CONFIG_APPS_DIR settings.  These
-	  should not be set in the default configurations because we don't know
-	  where the apps/ directly will reside until configuration time (2014-2-21).
-	* arch/arm/src/sam34/chip/sam4e_pinmap.h:  SAM4E pin multiplexing
-	  definitions (2014-2-21).
-	* sched/sched_processtimer.c and fs/procfs/fs_procfscpuload.c:  Add
-	  logic to measure and calculate the CPU load percentage.  From David
-	  Alessio (2014-2-22).
-	* sched/sched_processtimer.c, sched_cpuload.c, fs/procfs/fs_procfscpuload.c,
-	  and fs_procfscpuload.c:  CPU load logic extended to keep counts on each
-	  thread.  The per-thread CPU is now reported in the procfs under
-	  <pid>/loadavg (2014-2-23).
-	* include/stddef.h:  ptrdiff_t is defined twice in stddef.h and also in
-	  sys/types.h.  stdef.h is the correct location for the definition, but
-	  it includes sys/types.h so, at least for now, the definition will be
-	  retained in sys/types.h (2014-2-25).
-	* net/net_close.c:  Fix one place where the connection reference count
-	  was not being decremented.  This is really a cosmetic change BUT
-	  when CONFIG_DEBUG_NET is enable, it will cause assertions (2014-2-25).
-	* arch/arm/src/sama5/sam_adc.h:  Fix typos in the SAMA5 ADC register
-	  definition header file (2014-2-26).
-	* arch/arm/src/sam34:  The port to the SAM4E is code complete (2014-2-16).
-	* include/cxx: Fix some bad idempotence definitions in header files
-	  (2014-2-27).
-	* sched/sched_cpuload.c:  Change calculation of the total count when the
-	  time constant related delay elapsed.  The total count is now always
-	  guaranteed to add up to 100% (excepting only truncation errors)
-	  (2014-2-27).
-	* fs/procfs/fs_procfscpuload.c and fs_procfsproc.c:  Remove the newline
-	  at the end of the percentage so that the returned strings can be
-	  printed on the same line as other values (2014-2-27).
-	* sched/Kconfig, sched_cpuload.c, and nuttx/sched/sched_processtimer.c:
-	  An asynchronous, "external" clock may now be used to drive the CPU
-	  load calculations for more accurate load measurements when needed
-	  (2014-2-27).
-	* configs/*/defconfig:  If CONFIG_NSH_LIBRARY=y then set CONFIG_NSH_READLINE=y
-	  otherwise the CLE will be selected by default the next time that
-	  make menuconfig is used (2014-2-28).
-	* include/cxx/cstdbool:  Ignore _Bool8 if CONFIG_C99_BOOL8=y. (2014-2-28).
-	* configs/*/defconfig:  Set CONFIG_DEFAULT_SMALL on all tiny MCU
-	  configurations (2014-2-28).
-	* configs/stm3240g-eval/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-2-28).
-	* configs/*/ostest:  Removed most OS test configurations (except in a few
-	  cases where there was some good argument to retain the ostest
-	  configuration) (2014-2-28).
-	* configs/stm3240g-eval/nsh2: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/stm3220g-eval/nsh2: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/stm3210e-eval/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/stm3210e-eval/nsh2: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/lincoln60/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/lpcxpresso-lpc1768/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/nucleus2g/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/vsn/nsh: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-1).
-	* configs/mirtoo/nsh: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-1).
-	* configs/pic32-starterkit/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/pic32-starterkit/nsh2: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1)
-	* configs/pic32mx7mmb/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/ubw32/nsh: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-1).
-	* configs/sim/nsh2: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-1).
-	* configs/lm3s6432-s2e/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1)
-	* configs/lm3s8962-ek/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/eagle100/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/stm32f4discovery/src/Makefile: Fix typo: stm32_pwm.c not
-	  stm32_psm.c.  Noted by Max Kriegleder (2014-3-1).
-	* configs/lpc4330-xplorer/nsh Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	*  configs/ea3152/ostest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-1).
-	* configs/stm3210e-eval/RIDE, nxlines, and nxtext:  Remove some old
-	  style configurations that are not worth converting to use the
-	  kconfig-frontends tools (2014-3-2).
-	* configs/stm3210e-eval/nx: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-2).
-	* configs/mirtoo/nxffs: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-2).
-	* arch/arm/src/lpc2378/Kconfig: Create Kconfig file for the LPC2378.
-	  Change most configuration variable names to avoid collisions with
-	  other platforms  (2014-3-2)
-	* configs/olimex-lpc2378/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-2)
-	* configs/olimex-lpc1766stk/nx: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-2)
-	* configs/lpcxpresso-lpc1768/nx: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-2)
-	* configs/lm3s8962-ek/nx: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-2)
-	* configs/sim/nx: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-2)
-	* configs/c5471evm/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/olimex-strp11/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/eagle100/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/ez80f910200zco/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/stm3220g-eval/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/stm3240g-eval/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/sim/nettest: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-3).
-	* configs/ez80f910200zco/dhcpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/stm3220g-eval/dhcpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/stm3240g-eval/dhcpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3).
-	* configs/lpcxpresso-lpc1768/dhcpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/olimex-lpc1766stk/usbmsc: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/nucleus2g/usbmsc: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/lpcxpresso-lpc1768/usbmsc: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/stm3210e-eval/usbmsc: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/hymini-stm32v/usbmsc: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/ea3131/usbmsc: Configuration removed.  It could not possible
-	  useful because there is no MCI driver for the EA3131 (2014-3-3)
-	* configs/mcu123-lpc214x/usbmsc: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-3)
-	* configs/teensy/nettest: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-3).
-	* configs/*/dhcpd:  Add missing DHCPD configuration settings (2014-3-3).
-	* configs/stm32f4discovery/pm: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/stm3210e-eval/pm: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/stm3240g-eval/nxconsole: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/stm3210e-eval/nxconsole: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/stm3240g-eval/telnetd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/stm3220g-eval/telnetd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* fs/fat/fs_fat32.c:  Fix an error in the FAT logic that can cause file
-	  corruption.  The error conditions are rare and only seen with very
-	  large files.  From Andrew Tridgell.  This replaces a previous, partial
-	  fix for the same problem (2014-3-4).
-	* configs/hymini-stm32v/usbserial: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/ea3131/usbserial: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/mcu123-lpc214x/usbserial: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/olimex-lpc1766stk/thttpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/lpcxpresso-lpc1768/thttpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/eagle100/thttpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/eagle100/httpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/ez80f910200zco/httpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/c5471evm/httpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/eagle100/nxflat: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/sim/touchscreen: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/sim/pashello: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/sim/nx11: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/ez80f910200zco/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/ez80f910200zco/poll: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/olimex-lpc1766stk/slip-httpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-4)
-	* configs/c5471evm/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/compal_e99/nsh_compalram: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/compal_e99/nsh_highram: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/mcu123-lpc214x/composite: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/olimex-strp711/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/amber/hello: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/micropendous3/hello: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/teensy/hello: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/teensy/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* arch/avr/Kconfig, avr32/Kconfig, at32uc3/Kconfig, atmega/Kconfig, and
-	  at90usb/Kconfig:  Reshuffle lots of AVR-related configuration names to
-	  make space for AVR32.  Populate AVR32 Kconfig file (2014-3-5).
-	* configs/avr32dev1/ostest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/avr32dev1/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/ntosd-dm320/nettest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/ntosd-dm320/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/ntosd-dm320/poll: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/ntosd-dm320/thttpd: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/ntosd-dm320/udp: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/ntosd-dm320/uip: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* arch/Kconfig, arch/arm/Kconfig, configs/ea3131/Kconfig,
-	  configs/ea3131/pgnsh/defconfig, configs/ea3131/src/up_fillpage.c,
-	  configs/ea3152/Kconfig, nuttx/configs/ea3152/src/up_fillpage.c,
-	  include/nuttx/page.h, and tools/cfgdefine.c:  Add configuration
-	  settings for the on-demand paging option (2014-3-5).
-	* configs/ea3131/pgnsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/qemu-i486/ostest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* configs/qemu-i486/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-5)
-	* Many files:  Use common naming for all buildroot toolchains
-	  (2014-3-5).
-	* Many files:  Use common naming for rest of the toolchains (2014-3-5).
-	* configs/ne64badge/ostest and demo9s12nec64/ostest: Configurations
-	  converted to use the kconfig-frontends tools (2014-3-5)
-	* fs/nxffs/nxffs_open.c: Missing call to nxffs_freeentry() causes
-	  memory leak.  From Lzyy (2014-3-6).
-	* fs/nxffs/nxffs_stat.c: Looks like stat() has the same problem as
-	  the one reported by Lzyy (2014-3-6).
-	* configs/skp16c26/ostest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/us7032evb1/ostest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/us7032evb1/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/mx1ads/ostest: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/pjrc-8051: Configuration converted to use the kconfig-frontends
-	  tools (2014-3-6)
-	* configs/rgmp/arm/default: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/rgmp/arm/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/rgmp/x86/default: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/rgmp/x86/nsh: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/rgmp/x86/helloxx: Configuration converted to use the
-	  kconfig-frontends tools (2014-3-6)
-	* configs/rgmp/x86/cxxtest: Configuration converted to use the
-	  kconfig-frontends tools.  This completes the conversion of all
-	  configurations to the newer format (2014-3-6)
-	* Removed the CONFIG_NUTTX_NEWCONFIG setting from every defconfig
-	  file (2014-3-6).
-	* The legacy, manual configuration is no longer supported by the
-	  NuttX build system.  Only the newer configurations generated by
-	  the kconfig-frontends tools will generate viable NuttX
-	  configurations.  All board configurations in the NuttX source tree
-	  have been converted to use the newer configuration, but if you have
-	  some older style configurations for you board, you will need to
-	  convert those configurations to use the kconfig-frontends tools.
-	  See http://www.nuttx.org/doku.php?id=wiki:howtos:convertconfig for
-	  some guidelines (2014-3-6).
-	* drivers/serial/Kconfig:  Correct an error introduced in this file
-	  in very recent commits (2013-3-6).
-	* configs/*sam*:  Refresh all SAM* configurations with the latest
-	  Kconfig files (2014-3-6).
-	* configs/stm32f4discovery:  Refresh all configurations (except
-	  winbuild) with the latest Kconfig files (2014-3-6).
-	* configs/viewtool-stm32f107:  Refresh all configurations with the
-	  latest Kconfig files (2014-3-6).
-	* configs/16z, mikroe-stm32f4, olimex-lpc1766stk, px4fmu-v2_upstream,
-	  sim, and stm32f429i-disco: Refresh all configurations (2014-3-6).
-	* Documentation/NuttShell.html:  Update per recommendations from Max
-	  Kriegleder (2014-3-6).
-	* configs/pic32-starterkit, pic32mx7mmb, stm3210e-eval, stm3220g-eval,
-	  and stm3240g-eval:  Refresh all configurations with the latest
-	  Kconfig files (2014-3-7).
-	* configs/qemu-i486/src:  Files renamed to correspond with current
-	  thinking about naming (2014-3-8).
-	* arch/x86/src/qemu/qemu_keypad.c and qemu_vga.c:  New QEMU keyboard
-	  and VGA drivers from Lizhuoyi (2014-3-8).
-	* configs/olimex-lpc2378/src:  Files renamed to correspond with current
-	  thinking about naming (2014-3-8).
-	* arch/arm/src/lpc2378/lpc23xx_i2c.c and lpc23xx_spi.c:  I2C and SPI
-	  drivers for the LPC23xx from Lizhuoyi (2014-3-8).
-	* arch/arm/include/tiva and src/tiva:  The old lm/ directories were
-	  renamed tiva/ to better support new products coming down the pipe
-	  from TI (2014-3-8).
-	* arch/arm/include/tiva, src/tiva, and configs/:  All files and all
-	  all functions beginning with the name lm_ changed to tiva_
-	  (2014-3-8).
-	* configs/: Refresh all LM3/4/Tiva configurations (2014-3-9).
-	* arch/arm/src/tiva/chip/tm4c_pinmap.h:  Add pin multiplex definitions
-	  for the TM4C123 (2014-3-9).
-	* arch/arm/src/tiva/chip/tm4c_memorymap.h:  Add memory map for the
-	  TM4C123 (2014-3-9).
-	* arch/arm/src/tiva/:  Add GPIO and SYCONTROL register bit definitions
-	  for the TM4C123 (2014-3-10).
-	* configs/tm4c123g-launchpad:  Add basic board support for the
-	  TM4C123G-Launchpad (2014-3-10).
-	* configs/sam4e-ek:  Add basic board support for the SAM4E-EK board.
-	  More work is needed.  The initial commit is little more than the
-	  SAM3U-EK with name changes (2014-3-10).
-	* configs/spark: Refresh all spark configurations (2014-3-11).
-	* arch/arm/src/tiva/chip/tm4c_memorymap.h:  Fix typos reported by
-	  Daniel Pereira de Carvalho (2014-2-12).
-	* arch/arm/src/sam34/sam_emac.c:  Add an Ethernet MAC driver for the
-	  SAM4E.  The initial checkin is essentially the SAMA5D3 EMAC driver
-	  with naming changes as appropriate (2014-3-12).
-	* arch/arm/src/sam34/sam_cmcc.c:  Add logic to manage the Cortex-M
-	  Cache Control block.  Untested on initial check-in (2014-3-12).
-	* arch/arm/src/sam34/sam_emac.c:  Fix EMAC pin configuration (was been
-	  set up for RMII instead of MII).  Now the driver EMAC appears to be
-	  functional (2014-3-13).
-	* configs/sam4e-ek/nsh:  Networking support is now enabled by default
-	  in the NSH configuration (2014-3-13).
-	* arch/arm/src/sam34/sam_spi.c:  Backported the SAMA5 SPI driver to
-	  the SAM3/4 architecture.  The SAMA5 version supports both multiple
-	  SPI peripherals as needed by the SAM3A and SAM3X and also supports
-	  DMAC (but not PDC).  The initial commit is untested and may very
-	  well have (temporarily) broken SPI for the SAM3/4/ family (2014-3-13).
-	* configs/sam4e-ek/src/sam_at25.c and sam_hsmci.c:  Added support for
-	  the AT25 serial FLASH.  Restructured the logic that registers the
-	  HSMCI block driver (2014-3-13).
-	* arch/arm/src/sam34/sam_dmac.c and sam_spi.c:  Fixes to DMA in general
-	  and to SPI in particular (2014-3-14).
-	* configs/sam4e-ek/nsh:  DMA-based SPI and a FAT file system on the
-	  AT25 Serial FLASH are now supported by default in the NSH configuration
-	  (2014-3-14).
-	* sched/nanosleep.c:  Fix a missing call to re-enable interrupts.  From
-	  Jason Jiang (2014-3-15).
-
-7.2 2014-04-29 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/sam34/sam_udp.c and .h:  Add a USB full speed device
-	  driver (UDP) for the SAM4E (2014-3-17).
-	* Documentation/NuttxPortingGuide.html:  Typo fixes from Vijay Kumar
-	  (2014-3-18).
-	* arch/arm/Kconfig:  Improved documentation of the use of the
-	  BASEPRI register from Vijay Kumar (2014-3-19).
-	* include/nuttx/i2c.h:  More typo fixes from Vijay Kumar (2014-3-19).
-	* arch/Kconfig and *_assert.h:  Add a configuration option to enable
-	  dumping of the USB trace buffer on assertion (2014-3-19).
-	* drivers/usbdev/Kconfig, arch/arm/src/sam34/Kconfig, and
-	  drivers/usbdev/usbmsc_scsi.c:  If DCD can support queuing of stall
-	  requests, then the USB MSC stall work around delays are not necessary
-	  (2014-3-20).
-	* net/netdev_findbyaddr.c:  Skip network devices that are in the
-	  "down" state.  It does not make sense to consider an address match
-	  with a "down" device.  From Brennan Ashton (2014-3-20).
-	* configs/sam4e-ek/usbnsh:  Add a NSH configuration that uses the
-	  NSH console (2014-3-22).
-	* arch/arm/src/stm32/stm32_eth.c:  Add IGMP hashing support.  From
-	  Manuel St�hn (2014-3-24).
-	* net/netdev_ioctl.c and uip/uip_input.c:  IGMP-related bug fixes
-	  from Manuel St�hn (2014-3-24).
-	* arch/arm/src/sam34:  Add missing HSCMI configuration settings to
-	  Kconfig; update naming to include SAM34_ (2014-3-24).
-	* configs/sam4e-ek/include/board.h:  Update HSMCI timing to use the
-	  CLKODD bit (2014-3-24).
-	* drivers/include/mtd/Kconfig, sector512.c, and include/nuttx/mtd/mtd.h:
-	  Add a new MTD driver that can be used to contain another driver and
-	  force its apparent sector size to be 512 bytes (2014-3-24).
-	* arch/arm/src/sam34/sam_lowputc.c sam_serial.c:  Fix a mysterious
-	  multithreading bug that can lock up the serial port (2014-3-14).
-	* drivers/usbdev/Kconfig, usbmsc.c, usbmsc.h, and usbmsc_scsi.c:
-	  Redesign threading module used with the USB MSC driver.  It was using
-	  pthreads before and these were changed to a kernel thread.  The reason
-	  for this has to do with task grouping:  A pthread is a memory of the
-	  group of the task that started it.  A kernel thread is independent of
-	  the task that started in (other than knowing it as the parent).  This
-	  allows me to remove so kludge logic to "deparent" the pthread on
-	  startup (2014-3-25).
-	* tools/astyle.sh:  A code formatting tool from Lorenz Meier.  This
-	  tool should do a better job than the old tools/indent.sh tool
-	  (2014-3-26).
-	* arch/arm/src/sam_hsmci.c and sam_spi.c:  Add support to invalidate
-	  cached memory if the CMCC is enabled (not yet tested, 2014-3-26).
-	* arch/arm/src/sam_spi.c:  Add logic to handle SPI word widths > 8
-	  (also untested on initial checkin, 2014-3-26).
-	* configs/sam4e-ek:  All configurations updated to run with 120MHz
-	  CPU speed and with the CMCC enabled.  Calibrated delay loop
-	  (2014-3-26).
-	* drivers/lcd/Kconfig:  Add missing configuration for the MIO283QT-9A
-	  LCD.  Reported by Toby Duckworth (2014-3-27).
-	* arch/arm/include/sama5/chip.h and arch/arm/src/sama5/Kconfig:  Add
-	  support for the SAMA5D36 (2014-3-28).
-	* libc/strings/lib_strncpy.c:  Change ordering of test and copy.  Logic
-	  would have failed if n=0; one byte was always copying before testing
-	  for the end of the copy.
-	* nuttx/configs/sama5d3-xplained/:  Add a board support configuration
-	  for the Atmel SAMA5D3 Xplained board.  The initial check in is not
-	  finished. For example, it still builds to run out of NOR FLASH but
-	  the SAMA5D Xlpained has no NOR FLASH (2013-4-28).
-	* arch/arm/src/sama5/sam_pmc.c and .h:  Add functions to calculate
-	  PLLACK, PCK, and MCK frequencies given the main clock frequency
-	  (2014-3-29).
-	* configs/sama5d*/include/board.h, board_sdram.h, and other files:
-	  When booting from SDRAM, we need to query the PMC registers (using
-	  the functions in sam_pmc.c) to determine the MCK, PCK, etc.  We assume
-	  that the MCK input clock is well known main crystal oscillator
-	  frequency (2014-3-29).
-	* configs/sama5d3x-ek:  Change all configuration names to board-
-	  specific names so that this are no name collisions with other
-	  boards that have similar configuration variables (2013-3-30).
-	* configs/nuttx/compiler.h:  Add macro UNUSED() that can be used
-	  to eliminate warnings about variables that are set to values
-	  that are not used (2014-3-30).
-	* arch/arm/src/sama5/sam_hsmci_clkciv.c:  Remove HSCMI-related
-	  functions that did not belong in sam_pmc.c and give them their
-	  own file (2014-3-30).
-	* arch/arm/src/sama5/sam_boot.c:  Fix some backward conditional
-	  compilation (2014-3-30).
-	* libc/stdio/lib_sccanf.c:  Fix a counting error in the return
-	  value from sscanf().  Noted by kfrolov.  Also, sscanf() should
-	  return EOF if no values were converted (2014-3-30).
-	* include/time.h and sched/clock_settime(): Add support for
-	  CLOCK_REALTIME.  From Macs N (2014-3-31).
-	* libc/stdio/lib_ferror.c, lib_fread.c, lib_libfflush.c,
-	  lib_libfread.c, and lib_libfwrite.c:  Finish incomplete support
-	  for ferror().  From Macs N (2014-3-14).
-	* libc/stdio/lib_ftell.c:  Fix a logic error in ftell().  It was
-	  simply using the file offset and did not take into account data
-	  buffered in memory.  From Macs N (2013-3-31).
-	* Add CONFIG_CLOCK_MONOTONIC that case used to disable CLOCK_MONOTONIC
-	  for a smaller footprint (2013-3-31).
-	* sched/Kconfig:  Menu has gotten too long.  And another layer of
-	  menuing in order to simplify this layer (2014-3-31).
-	* arch/arm/src/sama5_boot.c:  Fix double mapping of SDRAM when executing
-	  out of SDRAM.  In this case, the SDRAM was already mapping in
-	  arm_head.S (2014-3-31).
-	* arch/arm/src/sama5/chip/sam_dbgu.h:  Add SAMA5D3 DBGU definition
-	  header file (2014-3031).
-	* arch/arm/src/sama5/sam_dbgu.c and .h:  Add support for the SAMA5D3
-	  DBGU (2014-4-1).
-	* configs/sama5d3-xplained/nsh:  Configurations now use the DBGU for
-	  the serial console (instead of USART1) (2014-4-1).
-	* libc/stdio/lib_sccanf.c:  Use stroul() vs strol() with %u format
-	  otherwise, range of values is restricted because of sign bit
-	  from kfrolov (2014-4-2).
-	* arch/arm/src/sama5/sam_boot.c, sam_irq.c, chip/sama5d3x_memorymap.h:
-	  When running from SDRAM, vectors must lie in SRAM (2014-4-2).
-	* arch/arm/src/armv7-a/arm_head.S and cache.h:  On start-up, make
-	  certain that the MMU and caches are disabled (probably un-necessary)
-	  (2014-4-2).
-	* arch/arm/src/sama5/sam_boot.c:  If we have to copy vectors, then
-	  make sure to clean the DCache to be sure that the copied vectors are
-	  in the physical RAM (2014-4-2).
-	* arch/arm/src/sama5/sam_irq.c:  After we modify the AXI MATRIX, make
-	  sure to invalidate all caches and TLBs (probably un-necessary)
-	  (2014-4-2).
-	* arch/arm/src/sama5/sam_irq.c: Set the VBAR register to zero.  If
-	  were started by a bootloader (vs. a RESET), then the VBAR register
-	  may not be in its reset state (zero, 2014-4-3).
-	* arch/arm/src/sama5/sam_boot.c, sam_irq.c, and chip/sama5d3x_memorymap.h:
-	  When booting from SDRAM, don't relocated vectors to ISRAM.  Instead,
-	  just set the VBAR register to address of the vectors in SDRAM.
-	* arch/arm/src/sama5/sam_clockconfig.c: BMS Fixed to match what the HW
-	  does.  From David Sidrane (2014-4-3).
-	* arch/arm/src/sama5/Kconfig, sam_boot.c, andsam_clockconfig.c:  On some
-	  hardware, reconfiguring the PLL while executing out of NOR FLASH causes
-	  crashes.  This was fixed by David Sidrane by implementing RAM functions.
-	  The killer code is copied and executed from ISRAM and the crash is
-	  avoided (2014-4-3).
-	* configs/sama5d3-xplained/Kconfig and include/board*.h;
-	  configs/sama5d3x-ek/Kconfig and include/board*.h:  Add support for
-	  528MHz CPU clock (2014-4-3).
-	* arch/arm/src/sama5/Make.defs:  Fix a build error that occurs when
-	  only USB device tracing is enabled (2014-4-4).
-	* Documentation/UsbTrace.html:  Add some discussion of the USB monitor
-	  (2014-4-4).
-	* nuttx/arch/arm/src/armv7-a/mmu.h:  Bufferable bit did not do what
-	  I thought it was going to do.  Result was the NOR FLASH accesses
-	  were very slow (2014-4-3).
-	* arch/arm/src/sama5/sam_udphs.c:  Fix a case where received status
-	  was not being cleared, causing OUT SETUP commands to fail (2014-4-6).
-	* arch/arm/src/tiva/tiva_syscontrol.c:  Add logic for TM4C125GXL based
-	  on logic from Daniel Carvalho with modifications.  I think the
-	  LM4F120 may have broken before as well(?).  In any event, the LM4F120
-	  also works well with this change (2014-4-7).
-	* Back out part of 610e2aa0c224e2936fe8009ef4a2351ce607067a: Need to
-	  be able to select USB console devices when there is no /dev/console
-	  enabled. Noted by Librae (2014-4-8).
-	* configs/*/defconfig:  Increase the number of preallocated watchdogs
-	  in all configurations that use networking or USB (2014-3-9).
-	* include/nuttx/syslog/syslog.h and ramlog.h:  Move syslog.h and
-	  ramlog.h to include/nutt/syslog (2014-4-10).
-	* sched/errno_getptr.c and getpid.c:  Add some checks.  If these
-	  functions are called early in initialization before the tasking
-	  structures are initialized, they will not behave properly
-	  (2014-4-10).
-	* arch/arm/src/sama5/sam_twi.c: TWI data sending is fails to increment
-	  the number of bytes transferred on first byte sent.  From David Sidrane
-	  (2014-4-10).
-	* configs/sama5d3x-ek/src: The red LED is controlled by PE24 which is
-	  also the camera/ISI interface reset line.  So if the a camera is
-	  installed, then we must avoid controlling the red LED or we inadvertently
-	  also reset the camera module.  Noted by David Sidrane (2014-4-11).
-	* arch/arm/src/stm32/stm32_usbhost.c/.h and stm32_otgfshost.c:  USB host
-	  tracing added by Leo (2014-4-12).
-	* arch/arm/src/sama5/sam_adc.c, sam_can.c, sam_emac.c, sam_gmac.c,
-	  sam_ssc.c, and sam_twi.c:  If running from SDRAM, then BOARD_MCK_FREQUENCY
-	  is not a constant and cannot be used in conditional compilation (2014-4-16).
-	* drivers/lcd/mio283qt9a.c and include/nuttx/lcd/mio283qt9a.h:  Update the
-	  MIO183QT-9A LCD driver to support reading from the LCD.  From Toby
-	  Duckworth (2014-4-16).
-	* arch/arm/src/stm32/chip/stm32f20xxx_pinmap.h:  Correct a mapping for
-	  SPI MOSI pin.  From dlsitzer (2014-4-26).
-	* arm/src/sama5/sam_clockconfig.c and common/up_internal.h: Move the
-	  un-definitions of __ramfuncs__ from the .c file to the .h file or,
-	  otherwise, the attribute will be applied differently for the prototype
-	  and the function definition.  Sourceforge patch 38 from Luciano Neri
-	  (2014-4-17).
-	* arch/arm/src/sama5/sam_emac.c:  Add missing right parentheses.  This
-	  introduced in the above change and is Sourceforge patch 39 from Luciano
-	  Neri (2014-4-17).
-	* configs/sama5dx-ek/include/board.h and sama5d3-xplained.h:  These files
-	  reference type xcpt_t and so must include nuttx/irq.h.  This is
-	  Sourceforge bug 25 submitted by Luciano Neri (2014-4-17).
-	* arch/arm/src/stm32/stm32_otgfshost.c:  Some fixes related to low-speed
-	  devices and interrupt endpoints from Leo (2014-4-17).
-	* configs/stm32f4discovery/src/stm32_usb.c:  Add support to register
-	  keyboard and mouse classes if so configured.  From Leo (2014-4-17).
-	* include/nuttx/usb/usbhost:  Fix some USB HID-related conditional
-	  compilation.  From Leo (2014-4-17).
-	* drivers/usbhost/usbhost_hidmouse.c: Don't include NAKs from the device
-	  in the error count.  From Leo (2014-4-17).
-	* arch/arm/src/sam34/sam_irq.c:  Fix initialization of the default
-	  priorities (2014-4-17).
-	* arch/arm/src/kinetis/kinetis_irq.c, lpc17xx/lpc17_irq.c, and
-	  tiva/tiva_irq.c:  Modify the logic to disables the interrupts and sets
-	  the default interrupt priority so that it uses the ICTR to get the
-	  number of interrupt lines/registers.  This is instead of using some
-	  fixed number of initializations based a priori knowledge of the number
-	  of interrupt lines in the MCU.  This logic is untested on some MCUs
-	  on initial check-in0 (2014-4-17).
-	* arm/src/lpc17xx/Kconfig and lpc17_ethernet.c:  The default interrupt
-	  priority should be default, not the highest priority (2014-4-19).
-	* configs/lpcxpresso-lpc1768: Refreshed all defconfig files (2014-4-19).
-	* configs/olimex-lpc1766stk: Refreshed all defconfig files (2014-4-19).
-	* configs/zkit-arm-1769: Refreshed all defconfig files (2014-4-19).
-	* include/nuttx/binfmt/ieee695.h:  Beginning of header file for IEEE
-	  695 OMF header file (2014-4-19).
-	* arch/arm/include/stm32/chip.h and src/stm32/Kconfig:  Add support
-	  for the STM401RE.  From Frank Bennett (2014-4-20).
-	* README.txt, Documentation/README.html, configs/Kconfig and README.txt,
-	  configs/nucleo-f401re:  Add support for the Nucleo-F401RE board.  From
-	  Frank Bennett (2014-4-20).
-	* arch/arm/src/sam34/sam_rtc.c/.h:  Port RTC driver from SAMA5 to
-	  SAM3/4.  From Bob Doiron (2014-4-21)
-	* arch/arm/src/sam34/sam4s_periphclks.h: Fix error in macros that
-	  disable peripheral clocking.  From Bob Doiron (2014-4-21)
-	* drivers/mmcsd/mmcsd_sdio.c/.h:  Misc improvements from Bob Doiron
-	  (2014-4-21)
-	* arch/arm/src/sam34/sam_hsmci.c and chip/sam_hsmci.h:  Extensions
-	  from Bob Doiron needed to support PDC-based HSMCI DMA transfers
-	  (2014-4-21).
-	* configs/sam4s-xplained-pro:  Support for the SAM4S Xplained Pro
-	  board from Bob Doiron (2014-4-21).
-	* configs/sam4s-xplained-pro: Added card detect (kind of broken
-	  still); added proc/vfat mounting during init to save some typing.
-	  From Bob Doiron (2014-4-21).
-	* configs/sam4s-xplained-pro: Boost PLLA to 240MHz to allow USB. From
-	  Bob Doiron (2014-4-21).
-	* arch/arm/src/sam34/sam_wdt.c/.h:  Add watchdog driver.  From Bob
-	  Doiron (2014-4-21).
-	* nuttx/configs/sam4s-xplained-pro:  Add board-specific watchdog
-	  timer support.  From Bob Doiron (2014-4-21).
-	* drivers/timer.c and include/nuttx/timer.h:  Timer "upper half"
-	  driver and lower half interface definition from Bob Doiron
-	  (2014-40-22).
-	* arch/z16/src/z16f/z16f_espi.c:  Add ZNEO ESPI driver (2014-4-24).
-	* arch/arm/src/stm32/stm32_sdio.c:  The dmaflight method must
-	  be conditioned on CONFIG_SDIO_PREFLIGHT.  Noted by Pelle
-	  Windestam (2014-4-25)
-	* configs/nucleo-f401re:  Removed bogus references to the MPU
-	  (2014-4-25).
-	* arch/z16/src/z16f_timerisr.c:  Fix calculation of timer
-	  reload and prescaler.  The timer frequency was way too fast
-	  (2014-4-25).
-	* arch/arm/src/stm32/stm32_otgfsdev.c and others: Sourceforge
-	  Ticket #26.  up_prioritize_irq should not be called if
-	  CONFIG_ARCH_IRQPRIO is not defined (2014-4-25).
-
-7.3 2014-06-25 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/sama5/sam_clockconfig.c:  Needed function sam_pmcwait()
-	  is needed when UDPHS, EHCI, or OHCI is configured but may not be
-	  compiled in due to insufficient conditional logic.  From Luciano Neri
-	  (SourceForge patch #40) (2014-4-29).
-	* arch/arm/include/stm32/chip.h, src/stm32/Kconfig, stm32_allocateheap.c,
-	  configs/nucleo-f401re/nsh/defconfig, and scripts/ld.script:  Numerous
-	  changes, most correcting memory usage on the Nucleo-F401RE (2014-4-30).
-	* /drivers/mtd/w25.c: Extended by Mark Whitehorn to support the 8Mbit
-	  W25Q80BV part (2014-4-30).
-	* configs/sam4s-xplained-pro:  Update LED control logic from Bob Doiron
-	  (2014-4-30).
-	* drivers/timer.c and include/nuttx/timer.h: Enhanced timer interface
-	  from Bob Doiron (2014-4-30).
-	* arch/arm/src/sam34/Kconfig and sam_tc.c: Enhanced timer/counter driver
-	  from Bob Doiron (2014-4-30).
-	* configs/sam4s-xplained-pro/Kconfig, nsh/defconfig, and src/sam_tc.c:
-	  The SAM4S Xplained Pro now uses the extended timer/counter features.
-	  From Bob Doiron (2014-4-30).
-	* include/nuttx/arch.h and sched/os_internal.h:  If the CPU load
-	  measurements are being driven by an external clock, then the prototype
-	  for sched_process_cpuload() must be available in include/nuttx/arch.h
-	  (2014-4-30).
-	* Documentation/NuttShell.html and many defconfig files:  The alternate
-	  console device CONFIG_NSH_CONDEV must not be defined unconditionally.
-	  This causes errors when using Telnet sessions.  This was solved by
-	  adding CONFIG_NSH_ALTCONDEV: CONFIG_NSH_ALTCONDEV enables or disables
-	  the feature then, if enabled, CONFIG_NSH_CONDEV provides the alternative
-	  console device name (2014-5-5).
-	* arch/arm/src/sam34/sam_rtt.c/.h:  RTT driver from Bob Doiron.  Also
-	  added high resolution RTC emulation using the RTT for the sub-second
-	  counter (2014-5-5).
-	* configs/sam4s-xplained-pro:  Clean-up of LED usage and also some
-	  integration of new timer features.  From Bob Doiron  (2014-5-5).
-	* drivers/timer.c and include/nuttx/timer.h:  Timer driver updates from
-	  Bob Doiron (2014-5-5).
-	* binfmt/symtab_findorderedbyname.c:  Fix an error in the symbol search
-	  function.  Noted by Pelle Windestam (2014-5-6).
-	* arch/arm/src/stm32/stm32f40xxx_rcc.c and configs/nucleo-f401re/include/board.h:
-	  The Nucleo-F401RE has no on-board crystals and, hence, needs to run
-	  with the PLL input from the on-chip HSI clock (2014-5-6).
-	* arch/arm/src/armv7-a/arm_memcpy.S:  This is the same optimized memcpy()
-	  function that Mike Smith brought in for the ARMv7-M with minor tweaks
-	  by David Sidrane to work with the ARMv7-A (2014-5-6).
-	* binfmt/libpcode, pcode.c, include/nuttx/poff.h, and binfmt/pcode.h:
-	  Framework to support Pascal P-Code as a binary format.  At present this
-	  logic is incomplete and really nothing more than a thought experiment
-	  to determine the feasibility of the P-code binary format (2014-5-7).
-	* drivers/sensors/Make.defs:  Correct build dependency.  Sourceforge
-	  ticket #41 from Kosma Moczek (2014-5-8).
-	* drivers/serial.c, include/nuttx/serial.h, arch/arm/src/stm32/stm32_serial.c
-	  and minor updates to all other drivers using the serial interface:  Add an
-	  rxflowcontrol method to the serial interface to better support RX flow control.
-	  From Jussi Kivilinna (2014-5-8).
-	* arch/arm/include/stm32 and src/stm32:  Add support for the STM32152 and
-	  STM32162 Medium+ density parts (plus miscellaneous other improvements to
-	  the original STM32151 logic).  From Jussi Kivilinna and Sami Pelkonen
-	  (2014-5-8).
-	* binfmt/binfmt_dumpmodule.c, binfmt_loadmodule.c, binfmt_unloadmdoule.c,
-	  builtin.c, elf.c, nxflat.c, pcode.c, and include/nuttx/binfmt/binfmt.h:
-	  Extend the binfmt interface to handle error conditions where format-specific
-	  binfmt clean-up is needed in the event of error conditions.  This is needed
-	  by the P-Code binfmt (2014-5-8).
-	* binfmt/libpcode, pcode.c, include/nuttx/poff.h, and binfmt/pcode.h:
-	  Now uses apps/interpreters/prun and is basically functional.  More work
-	  is needed because (1) it is too coupled with apps/ and (2) will not work
-	  with CONFIG_NUTTX_KERNEL (2014-5-9).
-	* arch/arm/src/stm32/stm32_i2c.c:  Bring in PX4 fix for I2C in very high
-	  noise environments or with rogue perpipherals.  Taken from the PX4 commit
-	  099b2017ccfa0fc7696f168db2a0c2e13fe5edbc by Tridge here:
-	  https://github.com/PX4/NuttX (2014-5-10).
-	* include/nuttx/video/rgbcolors.h:  Fix typo in several macros: RBG -> RGB.
-	  (2014-5-12).
-	* drivers/mtd/ramtron.c: Add support for Fujitsu MB85RS1MT part.  From
-	  Charles Ash (2014-5-12).
-	* configs/sam4e-ek/src/sam_ili9325.c:  Add an LCD driver for the SAM4E-EK
-	  board.  Untested on initial check-in (2014-5-13).
-	* configs/sam4e-ek/src/sam_ads7843e.c:  Add a touchscreen driver for the
-	  SAM4E-EK board.  Untested on initial check-in (2014-5-13).
-	* arch/arm/src/stm32/stm32_i2c_alt.c: Add an alternative I2C implementation
-	  for the STM32 F03 that works around errata in that part.  From Patrizio
-	  Simona (2014-5-14).
-	* arch/arm/src/sam34/sam_gpio.c:  Fix some SAM4E compiler errors when
-	  CONFIG_DEBUG_GPIO is enabled (2014-5-15).
-	* sched/sig_mqnotempty.c:  Test for a valid signal number is inverted; this
-	  function could not have been working correctly???  From eero.nurkkala
-	  (2014-5-20).
-	* arch/arm/src/stm32/stm32_lowputc.c:  Fix error in conditional
-	  compilation. From Sami PelKonen (2014-5-20).
-	* arch/*/src/* (several files):  Make sure that all references to
-	  up_prioritize_irq() are conditioned on CONFIG_ARCH_IRQPRIO.  Problem
-	  noted by Mike Smith (2014-05-20).
-	* drivers/wireless/cc3000/Kconfig: Correct SPI mode for CC3000 is CPOL=0
-	  CHPA=1. See http://processors.wiki.ti.com/index.php/CC3000_Serial_Port_Interface_(SPI)
-	  From Jussi Kivilinna (2014-5-21).
-	* drivers/wireless/cc3000/cc3000.c and include/nuttx/wireless/cc3000/include/cc3000_upif.h:
-	  Configuration has CC3000_SPI_MODE settings but source uses
-	  CONFIG_CC3000_SPIMODE. From Jussi Kivilinna (2014-5-21).
-	* drivers/wireless/cc3000/cc3000drv.c: unsoliced_thread does
-	  initialization of message queue, but main thread might block that
-	  thread from running and use the uninitialized message queue. The main
-	  thread must wait until unsolice_thread initializes the required
-	  structures before proceeding. From Jussi Kivilinna (2014-5-21).
-	* drivers/wireless/cc3000/cc3000.c: Fix build when POLL is enabled.
-	  From Jussi Kivilinna (2014-5-21).
-	* arch/arm/include/armv7-m/irq.h:  Change bne to bne.n in irqrestore()
-	  (2014-5-22).
-	* Many files: Convert all old-style variadic macros to the C99 form.
-	  Recent GCC changes tightens up that behavior and can cause some problems
-	  (at least for the IAR compiler for some reason).  See
-	  https://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html#Variadic-Macros.
-	  Noted by Bob Grimes (2014-5-22).
-	* configs/viewtool-stm32f107/nsh: Configuration refreshed (2014-5-23).
-	* arch/arm/src/stm32/stm32_i2c_alt.c: Final driver from Max Kriegleder et al.
-	  Reduces footprint and fixes a bug.  (2014-5-23).
-	* tools/configure.sh:  In-place SED edit messes up permissions on windows.
-	  From Hannes Delago (2014-5-25).
-	* include/nuttx/mtd/mtd.h:  Needs forward reference to struct spi_dev_s.
-	  (2014-5-25).
-	* arch/arm/src/stm32/stm32_i2c.c and stm32_i2c_alt.c:  Back out PX4 fixes
-	  that were reverted in the PX4 repositories (2014-5-25).
-	* sched/Kconfig:  CONFIG_START_YEAR/MONTH/DAY are not required if the
-	  RTC is enabled (2014-5-26).
-	* arch/arm/src/stm32/stm32_rtcc.c:  Add retry logic to RTC initialization.
-	  It sometimes takes longer for the RTC to initialize, at least as noted
-	  on an F2 part.  From dlsitzer (2014-5-27).
-	* libc/stdio/lib_snprintf.c:  If the size passed to snprintf() is zero,
-	  then snprintf() must write nothing, but instead return the size of the
-	  buffer needed to hold the entire string.  From Sami Pelkonen (2014-5-30).
-	* net/arp:  Move arp related files from net/uip to net/arp.  Files renamed
-	  with arp_ prefix (2014-5-30).
-	* include/nuttx/net/arp.h and net/arp/arp_timer.c:  Moved
-	  include/nuttx/net/uip/uip-arp.h to include/nuttx/net/arp.h; moved
-	  net/net_arptimer to arp/arp_timer.c. (2014-5-30).
-	* net/igmp:  Moved IGMP files from net/uip to net/igmp (2014-5-30).
-	* net/icmp:  Moved ICMP files from net/uip to net/icmp (2014-5-30).
-	* net/uip/uip_tcptimer.c:  NET: Notify upper layer when TIME_WAIT or
-	  FIN_WAIT_2 timeout occurs. Otherwise connections possibly won't get
-	  freed. From Max Holtzberg (2014-6-2).
-	* TCP fallback allocation: Added all states in which the connections are
-	  about to be closed.  Fallback mechanism is disabled when SO_LINGER is
-	  enabled to prevent deadlocks in netclose_disconnect().  From Max Holtzberg
-	  (2014-6-2).
-	* configs/olimex-stm32_h405:  Support for the Olimex STM32 H405 board
-	  contributed by Martin Lederhilger (2014-6-3).
-	* net/arp/Make.defs:  Fix an error introduced recently in the net/ build
-	  (2014-6-3).
-	* net/iob:  Add generic I/O buffering.  Not currently used by anything.
-	  (2014-6-4).
-	* arch/arm/include/sama5 and arch/arm/src/sama5:  Basic framework to
-	  support the SAMA5D4 family.  Incomplete on initial check-in (2014-6-3).
-	* arch/arm/src/sama5/chip/sam_xdmac.h: Beginning of XDMAC register
-	  definition header file (incomplete) (2014-6-4).
-	* arch/arm/src/sama5/chip/sam_l2cc.h:  Add SAMA5D4 L2CC register definition
-	  header file (incomplete on initial check-in) (2014-6-5).
-	* drivers/usbdev/cdcacm.c:  Reset RX head to avoid resending last serial
-	  data when USB cable disconnected/re-connected.  From Lizhuoyi (2014-6-6).
-	* drivers/usbdev/pl2303.c:  Same change cloned for PL2303 (2014-6-6).
-	* arch/arm/src/lpc2378:  Fix several typos. From Lizhuoyi (2014-6-6).
-	* arch/arm/src/lpc17xx/lpc17_gpdma.c:  Fix an error when DMA is
-	  started:  The read-modify-write fails when the DMA is started.  This
-	  is because the value read is not the same as the value set (on write
-	  it is the number of transfers to do; on read it is the number of
-	  transfers completed).  From Lizhuoyi (2014-6-6).
-	* configs/sama5d4-ek:  Initial board support for the SAMA5D4-EK board.
-	  This initial check-in is basically the SAMA5D3-Xplained board support
-	  with appropriate name changes (2014-6-6).
-	* stm32/arch/arm/src/stm32_serial.c:  Handle configuration for the
-	  case of 8-bit data with parity.  From Freddie Chopin (2014-6-11).
-	* binfmt/libelf/elf.c:  Fix a compilation error when CONFIG_ELF_DUMPBUFFER
-	  is defined.  From Pelle Windestam (2014-6-12).
-	* net/, include/nutt/net, and include/netpacket:  Add support for "raw"
-	  sockets.  From Lazlo Sitzer (2014-6-12).
-	* arch/arm/src/sama5:  Add SAMA5D4 XDMAC driver.  Initial check-in is
-	  just the DMAC driver with a few naming changes (2014-6-12).
-	* configs/sama5d4x-ek/ramtest:  Add an SDRAM test configuration
-	  (2014-6-14).
-	* libc/stdio/lib_libsnoflush.c, lib_memsistream.c, and lib_memsostream.c:
-	  Add support for seekable memory streams (2014-6-14).
-	* libc/stdio/lib_rawsistream.c, and lib_rawsostream.c:  Add support for
-	  seekable raw streams (2014-6-14).
-	* libc/stdio/lib_stdsistream.c, and lib_stdsostream.c:  Add support for
-	  seekable standard streams (2014-6-14).
-	* configs/sam4x-xplained*/src/sam_buttons.c: Button interrupts not being
-	  disabled after being detached.  (2014-6-15).
-	* binfmt/binfmt_exec.c:  Fix a critical error in exec(); argv was not
-	  being passed (2014-6-15).
-	* arch/arm/src/sama5/sam_dmac.h:  Fix some critical typos in the SAMA5D3
-	  DMA definitions (2014-6-17).
-	* nuttx/net/net_send_unbuffered.c: Notify the device driver of the
-	  availability of TX data.  From Daniel Lazlo Sitzer (2014-6-18).
-	* net/net_close.c, net_send_unbuffered.c, socket.c, and uip_poll.c:
-	  Various fixes for raw sockets from Daniel Lazlo Sitzer: (1) properly
-	  free the socket in psock_close(), (2)  socket() returns failure when
-	  there is no free socket/connection, and (3) Set number of bytes to
-	  transmit is set in the uip_driver_s instance (2014-6-18).
-	* net/tcp:  Move all TCP files from net/uip to net/tcp (2014-6-18).
-	* net/udp:  Move all UDP files from net/uip to net/udp (2014-6-18).
-	* net/pkt:  Move all AF_PACKET files from net/uip to net/pkt (2014-6-18).
-	* net/Kconfig:  Add option to select CONFIG_NET_GUARDSIZE (2014-6-18).
-	* net/net_send_buffered.c:  Add checks from buffer allocation failures.
-	  from Max/Himax (2014-6-19).
-	* tools/mkfsdata.pl:  Apparently, the trailing the 0x00 in http server
-	  files is seen as a bug in javascript and images.  From Max/Himax
-	  (2014-6-19).
-	* net/ and include/nutt/net (many files):  Conversion of the TCP
-	  write buffering logic to use I/O buffer chains (not tested on initial
-	  check-in) (2014-6-22).
-	* include/time.h and sched/clock_gettime.c:  Fix typo in conditional
-	  compilation:  CONFIG_CLOCK_MONOTONIC vs. CLOCK_MONOTONIC.  From Manuel
-	  St�hn (2014-6-23).
-	* arch/avr/Kconfig and arch/avr/src/avr32/Kconfig:  Fix typos in
-	  Kconfig files from Stefan Sperling (2014-6-23).
-	* net/net_send_unbuffered.c:  Remove some spurious white space from
-	  field selectors.  SourceForge ticket #42 (2014-6-23).
-	* arch/arm/src/lpc17xx and configs/lpcexpresso-lpc1768:  Added support
-	  for the lpcxpresso's rtc handler, adc, dac, timers, pwm and mcpwm
-	  drivers.  From Max (himax) (2014-6-23).
-	* net/tcp/Kconfig:  Cannot enable bother TCP write buffering AND raw
-	  packet sockets.  This should not logically be the case, but is because
-	  the implementations are presently too coupled.  The logic packet
-	  socket logic in net/net_send_unbuffered.c needs to be broken out into
-	  a separate file so that write buffered TCP and packet socket transfers
-	  can co-exist (2014-6-23).
-	* net/uip/uip_pktsend.c:  Move the logic that copies data into the
-	  device buffer from net/net_send_unbuffered.c to net/uip/uip_pktsend.c.
-	  This makes the packet socket design more consistent with TCP and UDP
-	  (2014-6-23).
-	* net/: Separate net/net_send_buffered.c and net/net_send_unbuffered.c
-	  to net/tcp/tcp_send_buffered.c, net/tcp/tcp_send_unbuffered.c, and
-	  pkt/pkt_send.c (2014-6-24).
-	* include/net/if.h and /net/arp/arp_inout.c:  Suppress ARP requests on
-	  data sent from packet sockets (2014-6-24).
-	* include/nuttx/net/netconfig.h: Move include/nuttx/net/uip/uipopt.h to
-	  include/nuttx/net/netconfig.h (2014-6-24).
-	* include/nuttx/net/netdev.h: Move include/nuttx/net/uip/uip-arch.h to
-	  include/nuttx/net/netdev.h (2014-6-24).
-	* include/nuttx/net/tcp.h: Move include/nuttx/net/uip/uip-tcp.h to
-	  include/nuttx/net/tcp.h (2014-6-24).
-	* include/nuttx/net/udp.h: Move include/nuttx/net/uip/uip-udp.h to
-	  include/nuttx/net/udp.h (2014-6-24).
-	* include/nuttx/net/pkt.h: Move include/nuttx/net/uip/uip-pkt.h to
-	  include/nuttx/net/pkt.h (2014-6-24).
-	* include/nuttx/net/icmp.h: Move include/nuttx/net/uip/uip-icmp.h to
-	  include/nuttx/net/icmp.h (2014-6-24).
-	* include/nuttx/net/igmp.h: Move include/nuttx/net/uip/uip-igmp.h to
-	  include/nuttx/net/igmp.h (2014-6-24).
-	* include/nuttx/net/ip.h: Move include/nuttx/net/uip/uip-ipopt.h to
-	  include/nuttx/net/ip.h (2014-6-24).
-	* include/nuttx/net/uip.h: Move include/nuttx/net/uip/uip.h to
-	  include/nuttx/net/uip.h (2014-6-24).
-	* net/uip/uip.h: Rename net/uip/uip_internal.h to net/uip/uip.h
-	  (2014-6-24).
-	* net/iob:  Add support for throttling read-ahead buffering if the
-	  read-ahead buffering is competing with write buffering for I/O
-	  buffers (2014-6-24).
-	* net/: Many files changed.  Convert existing TCP read-ahead logic
-	  to use I/O buffer chains (2014-6-24).
-	* net/: Clean up all TCP and UDP related naming (204-6-24).
-	* net/: Clean up all ICMP, IGMP, ARP, and PKT related naming
-	  (204-6-25).
-	* arch/arm/src/sam34 and include/sam34:  Add support for the SAM4CM
-	  family.  From Max Neklyudov (2014-6-25).
-
-7.4 2014-08-15 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/stm32/stm32_i2c.c:  Fix missing configuration of
-	  GPIO pins in I2C driver.  Fix from Alex D. (2014-6-25).
-	* NET: Fix an include file ordering problem when CONFIG_NET_STATISTICS=y.
-	  (2014-6-26).
-	* include/nuttx/net/netstats.h: Move statistics from uip.h to new netstats.h
-	  to remove nasty circular inclusion problem (2014-6-26).
-	* arch/arm/src/sama5:  Add logic to redirect all SAMA5D4 interrupts to
-	  the AIC (2014-6-26).
-	* net/route: Move routing table functions to net/route (2014-6-26).
-	* net/utils: Move some files into net/utils (2014-6-26).
-	* net/:  Repartition initialization logic so that net/uip is at the bottom
-	  of the food chain, instead of at the top.
-	* apps/include/hex2bin.h:  The hex2bin library did not build with
-	  debug disabled (2014-6-26).
-	* configs/sama5d4-ek/dramboot and src/dram_main.c:  Add a boot loader that
-	  runs from ISRAM and loads an Intel HEX file into DRAM (2014-6-26).
-	* configs/sama5d4-ek/nsh and scripts/: Setup the SAMA5D4-EK NSH
-	  configuration to use the DRAMBOOT loader by default (2014-6-26).
-	* binfmt: Various changes associated with symbol tables.  Most from Pelle
-	  Windestam (2014-6-27).
-	* Networking: Add network device ioctl to access PHY registers. From Daniel
-	  Lazlo Sitzer (2014-6-27).
-	* net/netdev:  Move net/netdev*.c to net/netdev/netdev*.c (2014-6-27).
-	* arch/arm/src/sam34/chip/sam4cm_ipc.h:  Add SAM4CM IPC register header
-	  file.  From Max Neklyudov (2104-6-27).
-	* arch/arm/src/sam34:  Various fixes PMC and clock configuration for the
-	  SAM4CM port from Max Neklyudov (2104-6-27).
-	* configs/sama5d4-ek/src/dram_main.c: SAMA5D4:  Bootloader needs to flush
-	  D-Cache to memory before disabling the caches (2014-6-27).
-	* net/Makefile: Fix a Make.defs inclusion omitted in a previous check-in
-	  (2014-6-17).
-	* net/utils:  Move net/uip/uip_chksum.c to net/utils/net_chksum.c
-	  (2014-6-17).
-	* configs/sama5d4-ek/at25boot and src/at25_main.c:  Add a configuration
-	  that will load a bootloader into AT25 Serial FLASH (2014-6-28).
-	* libc/math: Change double_t to double in rint().  Add rintf() and rintl()
-	  while we are at it (2014-6-28).
-	* net/iob: Fix some errors in recent network I/O buffering when stack runs
-	  from interrupt level.  Reported by Manuel St�hn (2014-6-28).
-	* net/sockets:  Create the net/sockets directory and hook it into the
-	  build system.  Move all socket-related C files into net/socket.  Move
-	  net/net.h to net/socket/socket.h (2014-6-28).
-	* net/ipv6:  Move IPv6 files from net/uip to net/ipv6 (2014-6-28).
-	* net/devif:  Rename net/uip to net/devif.  Rename uip/uip.h to
-	  devif/devif.h (2014-6-28).
-	* net/devif: Rename many functions in net/devif from uip_* to devif_*
-	  (2014-6-28).
-	* configs/sama5d4-ek/src/nsh:  The SAMA5D4-EK NSH configuration now
-	  supports the RTC by default (2014-6-29).
-	* arch/arm/src/sama5/Kconfig and sam_hsmci.c:  Add configuration to
-	  assign an XDMAC channel to an HSMCI (2014-6029).
-	* Various fixes for networking and tiny webserver from Max (2014-6-29).
-	* SAMA5: Various fixes related to DMA in order to get the HSMCI
-	  driver to build for the SAMA5D4 (2014-6-29).
-	* SAMA5D4-EK: Fix HSMCI card-detect pin selection (2014-6-29).
-	* net/:  Still renaming, mostly uip_* to net_* (2014-6-29).
-	* arch/arm/src/stm32/stm32_i2c.c and stm32_i2c_alt.c, and
-	  libc/time/lib_daysbeforemonth.c:  Make variable definitions
-	  'static const' when possible to save RAM usage.  From Kosma
-	  Moczek (2014-6-30).
-	* include/stdint.h: Correct naming of [U]INT_LEASTn_{MAX|MIN}
-	  and [U]INT_FASTn{MAX|MIN}. From Kosma Moczek (2014-6-30).
-	* drivers/mtd/mtd-config:  Extend erase block size to 18-bits in
-	  order (decrease block size to 14-bits) to handle parts with large
-	  erase blocks. From Kosma Moczek (2014-6-30).
-	* drivers/analog/adc.c: Remove empty ADC write method. From Kosma
-	  Moczek (2014-6-30).
-	* arch/arm/src/stm32/stm32_serial.c: Unconfigure GPIO pins when
-	  closing a serial port to prevent back effects from back-powering on
-	  the TX pin. From Kosma Moczek (2014-6-30)
-	* arch/arm/src/stm32/Kconfig:  Move temperature ranges from chip
-	  selection configuration prompts. Reorder MCUs in choice menu;
-	  remove duplicates. Add support for the STM32F103RC and RD.  From
-	  Kosma Moczek (2014-6-30)
-	* configs/sam4s-xplained-pro:  Correct description of LEDs and
-	  usage. From Kosma Moczek (2014-6-30)
-	* include/unistd.h: Some POSIX_* and _POSIX_* macros are defined
-	  without value, whereas (as far as I can tell) the newer versions
-	  of the standard require them to have the value corresponding to
-	  the standard version implemented, like 200809L. Are there any plans
-	  to clean this up? For now I've put together a quick patch that
-	  defines those macros to 1, consistent with the rest of unistd.h.
-	  From Kosma Moczek (2014-6-30)
-	* arch/arm/src/sama5/sam_memories.c:  Fix some logic in conversion
-	  of physical and virtual DRAM addresses when running out of DRAM.  This
-	  is an important bug fix for the SAMA5D3 and 4 when running out of
-	  DRAM (2014-6-30).
-	* arch/arm/src/sama5/sam_pio.c:  Another *critical* SAMA5D3 and 4 bug
-	  fix:  PIO clocking must be enabled for all input pins or else the
-	  value that is read never changes. (2014-6-30).
-	* net/:  Many more functions renamed to follow new modularization of
-	  the networking code.  This is part of an ongoing repartitioning
-	  effort and there is still more to be done.  There will be no additional
-	  notations in this ChangeLog until the renaming is complete (2014-6-30).
-	* arch/arm/src/sam34/sam_emac.c, sama5/sam_emaca.c, sam_emacb.c, and
-	  sam_gmac.c:  Fix cloned error:  Wrong bits being cleared before ORing
-	  in new bits (2014-7-1).
-	* drivers/syslog/ramlog.c: syslog_putc needs to set the errno and
-	  return EOF on a failure (2014-7-1).
-	* SAM3/4 and SAMA5 Ethernet:  Fix an error in the function that
-	  determines the number of free TX descriptors.  This is an important
-	  bugfix on busy networks (2014-7-2).
-	* SAM4 AES driver.  Contributed by Max Neklyudov (2014-7-3).
-	* crypto/ and include/crypto:  Beginnings of a crypto/ subsystem from
-	  Max Neklyudov (2014-7-3).
-	* arch/arm/src/stm32 and fs/procfs:  Add a procfs entry to show the
-	  state of the CCM heap usage.  From Pelle Winderstam (2013-7-3).
-	* SAMA5 OHCI: Fix an error in a DEBUGASSERT statement.  Caused assertion
-	  to fire inappropriately when a low- or full-speed device was removed
-	  and CONFIG_DEBUG=y (2013-7-3).
-	* SmartFS.  Fix for a bug that would show up if CONFIG_MTD_BYTE_WRITE
-	  was not selected and the SMART sector size was larger than the mt
-	  device's block size (like it would be if using SMARTFS on larger
-	  flash devices).  From Ken Pettit (2014-7-3).
-	* tools/mkdeps.c: NAME_MAX not available on SunOS; use FILENAME_MAX
-	  or MAXNAMELEN.  Noted by Douglas Beattie (2014-7-4).
-	* drivers/mtd/smart.c: Increase some variables from uint16_t to uint32_t
-	  to handle larger device sizes.  From Ken Pettit (2014-7-4).
-	* SAMA5 OHCI: Pointers to allocated port values were not being nullified
-	  after being deallocated.  This caused some assertions to fire when
-	  debug was enabled (2014-7-4).
-	* include/nuttx/net/ip.h and ipopt.h:  ip.h renamed ipopt.h.  Moved
-	  parts of uip.h to net.h. Renamed the rest of uip.h to ip.h.  Removed
-	  all includes of uip.h; added includes of ip.h wherever needed.
-	  Tried to fix problems of the now missing sneak inclusions because
-	  uip.h was removed.  There are probably a few of these that were
-	  missed! (2014-7-4).
-	* drivers/input/mxt.c/h and include/nuttx/input/mxt.h:  Add very basic
-	  support for the Atmel maXTouch touchscreen controller (2014-7-5).
-	* net/*/*.h: Start moving the private definitions from header files
-	  at include/nuttx/net to the corresponding header file under net/.
-	  So far pkt.h, upd.h, and igmp.h have been sanitized.  Still a few
-	  to go (2014-7-5)
-	* configs/sama5d4-ek/src/sam_maxtouch.c:  Add board support for the
-	  maXTouch touchscreen controller (2014-7-5).
-	* net/*/*.h: Finish moving the private definitions from header files
-	  at include/nuttx/net to the corresponding header file under net/.
-	  This additional header files have been sanitized: arp.h, icmp.h, tcp.h
-	  (2014-7-6)
-	* net/: Add a few missing configuration options to the Kconfig files
-	  (2014-7-8).
-	* net/iob/iob_trimhead_queue.c and socket/recvfrom.c:  Important fix to
-	  the read-ahead buffer queue management: Consumed bytes were being
-	  trimmed from the head of the queue, but the queue head itself was
-	  not being updated.  From Rony XLN (2014-7-7).
-	* drivers/bch:  Add configurable AES encryption support to block-to-
-	  character (BCH) driver.  This allows any block device to be accessed
-	  as an encrypted character device.  From  Max Nekludov (2014-7-7).
-	* SAM3/4: Fix compile of sam_aes.c if CONFIG_CRYPTO_AES is defined.
-	  From  Max Nekludov (2014-7-7)
-	* SAMA5D3/4 I2C: Test for read or write operation was reversed.  How
-	  could this have worked before? (2014-7-7).
-	* SAMA5D3/4 PIO Interrupts:  Correct a typo in
-	  arch/arm/src/sama5/sam_pio.h that could disable PIO interrupt support
-	  if only PIOE interrupts were enabled (2014-7-7).
-	* SAMA5D4 PIO Interrupts: Macro SAM_PION_VBASE is not defined for the
-	  SAMA5D4 and must be replaced with a table lookup (2014-7-7).
-	* configs/sam*: Fix some cloned errors in SAM GPIO interrupt setup
-	  (1014-7-7).
-	* arch/arm/src/sama5/Kconfig and sam_allocateheap.c:  Add a
-	  configuration option to reserve DRAM for a framebuffer when executing
-	  out of DRAM.  This optional was available before when executing out of
-	  NOR, but needs to work a little differently in this case (2014-7-7).
-	* arch/arm/src/sama5/sam_lcd.c and chip/sam_lcdc.h: Adapt the SAMA5D3
-	  LCDC driver to work with the SAMA5D4 which has no hardware cursor
-	  (2014-7-8).
-	* configs/sama5d4-ek:  Add options to support an LCD (2014-7-7).
-	* arch/arm/src/sama5/sam_twi.c:  Now support the up_i2creset() method
-	  (2014-7-9)
-	* drivers/input/mxt.c:  Use i2c_reset() if it thinks that the bus
-	  might by hung (2014-7-9).
-	* arch/arm/src/sama5/sam_pio.c/.h:  Add a new interface
-	  sam_pio_forceclk() that can be used to force PIO clocking on.  I am
-	  afraid I was too conservative with PIO clocking in the initial design;
-	  this is the price (2014-7-9).
-	* arch/arm/src/sama5/sam_twi.c: Use sam_pio_forceclk() so that we can
-	  read the current state of an open-drain output in the TWI reset logic
-	  (2014-7-9).
-	* arch/arm/src/sama5/sam_pio.c/.h: Fix a typo in Schmitt trigger
-	  configuration; Configure pin as a a vanilla input first so that final
-	  pin configuration is more read-able (i.e., easier to debug)
-	  (2014-7-9).
-	* drivers/input/mxt:  The maXTouch driver works! (2014-7-10).
-	* configs/sama5d4-ek:  The TM7000 LCD works! (2014-7-10).
-	* configs/sama5d4-ek/NxWM:  Add an NxWM configuration (2014-7-10).
-	* drivers/mtc_rwbuffer.c (and others): Add an MTD layer that will add
-	  read-ahead or write buffering to any MTD driver (incomplete) (2014-7-11).
-	* arch/arm/src/lpc17xx/lpc17_ethernet.c: Comment out an assertion that
-	  is reported to fire inappropriately.  From Max (2014-7-11).
-	* drivers/mtd (mostly): Addition rwbuffer interfaces should not be
-	  enabled unless they are needed; if rwbuffer support is enabled, it
-	  should not be unconditionally enabled in SMART and FTL (2014-7-11).
-	* libnx/nxglib/nxglib_colorcmp.c and include/nuttx/nx/nxglib.h: New
-	  utility to compare two colors (2014-7-11).
-	* graphics/Kconfig and nxbe/nxbe_configure.c: The initial background
-	  color is now configurable (2014-7-11).
-	* graphics/nxmu/nxmu_server.c and nxsu/nx_setbgcolor.c:  Don't change
-	  the background if the color did not really change (2014-7-11).
-	* arch/arm/src/sama5/sam_ldc.c and sama5d4-ek/include/board.h:  Back
-	  out the delay kludge.  The actual fix to the LDC instability was to
-	  drive the LCD at 2xMCK instead of 1xMCK (2013-7-12).
-	* drivers/input/mxt.c:  Fix an error in the state machine (2014-7-12).
-	* drivers/input/mxt.c:  Add thresholding so that "move" reports are not
-	  generated unless there is a significant change in the reported
-	  position (2014-7-12).
-	* SAMA5D4-EK MXT: The maXTouch should be able to handler an I2C
-	  frequency of 400KHz.  Valid interrupts should occur only on the
-	  falling edge of the ~CHG signal (2014-7-12).
-	* SAMA5D3x-EK: Use larger icons in NxWM configuration instead of
-	  scaling (2014-7-14).
-	* Graphics: Rename CONFIG_NX_MOUSE to CONFIG_NX_INPUT, then add
-	  CONFIG_NX_XYINPUT_MOUSE and CONFIG_XYINPUT_TOUCHSCREEN (2014-7-16).
-	* drivers/input/mxt.c:  Fix error in threshoold test... backward
-	  logic (2014-7-16).
-	* graphics/nxconsole/nxcon_scroll.c:  Fix scrolling in the NxConsole
-	  for the case of the framebuffer device.  In this case, the logic
-	  for clearing the vacated region at the bottom was missing so garbage
-	  up from the last, uncleared line (2014-7-17).
-	* drivers/audio/wm8904.c/.h and include/nuttx/audio.wm8904.h:  Framework
-	  for a WM8904 audio driver.  The initial driver check-in is simply Ken
-	  Pettit's VS1053 driver forced to compile with only WM8904 definitions
-	  (2014-7-18).
-	* configs/sama5d4-ek/src/sam_wm8904.c:  Add logic to configure and
-	  initialize the WM8904 audio CODEC (2014-7-17).
-	* arch/arm/src/sama5/sam_sckc.c/.h and chip/sam_sckc.h:  Add SAMA5
-	  slow clock support.
-	* arch/arm/src/sama5/sam_pck.c and .h:  Add support to use the slow
-	  clock as the PCK clock source (2014-7-19).
-	* drivers/audio/wm8904.c/:  The WM8904 audio driver is mostly code
-	  complete and ready to begin initial testing (2014-7-19).
-	* arch/arm/src/sama5/sam_pio.c:  Logic for Schmitt trigger selection
-	  backward (2014-7-20).
-	* drivers/net/slip.c:  Fix an error in SLIP escaping.  From Max
-	  Neklyudov (2014-7-22).
-	* drivers/input/Kconfg: Add missing configuration option to select the
-	  MAX11802 touchscreen controller. From Petteri Aimonen (2014-7-22).
-	* arm/src/stm32/chip/stm32_dac.h:  Fix typos, from Peterri Aimonen
-	  (2014-7-22).
-	* arch/arm/src/stm32/stm32_otgfsdev.c: STM32 OTGFS device:  Various
-	  changes to try to reduce that amount of time in interrupts handles and
-	  with interrupts disabled.  Needs verification on other platforms.  From
-	  Petteri Aimonen (2014-7-22).
-	* arch/arm/src/sama5/sam_pck.c: Fix a recently introduced typo that was
-	  being masked by some bad conditional compilation (2015=4-7-22).
-	* drivers/audio/wm8904.c and include/nuttx/audio/wm8904.h: Remove WM8904
-	  driver unused parameters, clean-up comments, remove some kruft in
-	  capability reporting (2014-7-22).
-	* audio/Makefile and pcm_decode.c, include/nuttx/audio/pcm_decode.c,
-	  configs/sama5d4-ek/src/sam_wm8904.c and others:  Add new framework for
-	  the PCM decoder.  It is now a 'front end' for lower-level drivers like
-	  the WM8904 that performs the PCM decoding from end (2014-7-22).
-	* audio/pcm_decode.c, configs/sama5d4-ek/src/sam_wm8904.c,
-	  drivers/audio/wm8904.c, and include/nuttx/audio/pcm.h:  Rename
-	  pcm_decode.h to pcm.h since it will hold more than just decoding
-	  definitions.  Fix some porting errors like idbg should auddbg, etc.
-	  Add wav file header and a few low-level wav utilities (2014-7-22).
-	* audio/pcm_decode.c and include/nuttx/audio/pcm.h:  Flesh out a few
-	  more PCM methods, still incomplete.  Re-vision PCM structure
-	  definition (2014-7-22).
-	* configs/sama*:  Disable MMC/SD multiblock transfers in all SAMA5D3/4
-	  configurations.  I suspect an issue but have not had time to run it
-	  down yet so the easiest thing is simply to disable the feature for
-	  now (2014-7-23).
-	* drivers/audio/audio_null.c, include/nuttx/audio/audio_null.c, and
-	  configs/sama5d4-ek/src/sam_audio_null.c: Add a NULL audio device that
-	  can be used to simply unit-level testing of audio decoders (2014-7/23).
-	* audio/pcm_decode.c, include/nuttx/audio/audio.h, and drivers/audio/audio_null.c
-	  and wm8904.c: Add ioctls so that PCM decoder can configure the driver
-	  bitrate, num channels, and sample width (2014-7-23).
-	* drivers/audio/Kconfig: Fix a typo in the audio Kconfig file,
-	  UDIO->AUDIO (2014-7-23).
-	* configs/sama5d4-ek/nxwm/defconfig:  The NxPlayer and audio system are
-	  now enabled in the default configuration (although they have not yet
-	  been fully integrated into the NxWM media player) (2014-7-23).
-	* configs/sama5d4-ek/nsh/defconfig: Enable the command line media player
-	  in the NSH configuration as well (still does not work, however)
-	  (2014-7-23).
-	* audio/Kconfig, audio.c, and include/nuttx/audio/audio.h: Add hooks for
-	  fast-forward and rewind needed by CMediaPlayer; add hooks for
-	  equalizer settings needed by the WM8904 (2014-7-24).
-	* drivers/audio/audio_null.c and wm8904.c: Fix some compile errors when
-	  audio DEBUG is enabled (2014-7-24).
-	* SAMA5D4-EK NxWM:  Configuration refreshed (2014-7-24).
-	* arch/arm/src/armv7-m/up_initialstate.c:  Correct the initial value of
-	  the BASEPRI register.  This was apparently never being initialized!
-	  From Max (2014-7-24).
-	* configs/mbed/src/up_adc.c, up_dac.c, and up_pwm.c and include/board.h:
-	  Port ADC, DAC, and PWM logic from the configs/zkit-arm-1769.  From Max
-	  (2014-7-24).
-	* arch/arm/src/lpc17xx/lpc176x_rtc.c: Eliminate warnings.  From Max
-	  (2014-7-24).
-	* arch/arm/src/lpc17xx/lpc17_pwm.c, lpc17_timer.c, lpc17_dac.c: Mostly
-	  cosmetic updates from Max (2014-7-24).
-	* arch/arm/src/lpc17xx/lpc17_adc.c and Kconfig : Added burstmode ADC
-	  conversion mode, with CONFIG_ADC_BURSTMODE option in Kconfig.  From
-	  Max (2014-7-24).
-	* arch/arm/src/lpc17xx/lpc17_ethernet.c: Added option to use the kernel
-	  worker thread to do most of the workload with CONFIG_NET_WORKER_THREAD
-	  option in Kconfig.  Eliminated a problem with PHY DP83848C : it doesn't
-	  need a specific initialization on mbed. Critical bugfix: From time to
-	  time (after some hours) the Ethernet receiver would lose one receive
-	  interrupt and the IP stack never recover because there is no receive
-	  watchdog as the transmit watchdog.  From Max (2013-7-24).
-	* audio/pcm_decode.c: Add missing audio callback forwarding logic
-	  (2014-7-25).
-	* arch/arm/armv7-a/l2cc_pl310.h:  Move arch/arm/sama5/chip/sam_l2cc.h to
-	  arch/arm/armv7-a/l2cc_pl310.h.  Adjust the two corresponding Kconfig
-	  files as well (2014-7-25).
-	* arch/arm/src/armv7-a/arm_l2cc_pl310.c, l2cc.h, l2cc_pl310.h, Kconfig:
-	  Add initial support for the ARM L2CC-PL310 L2 cache (2014-7-26).
-	* arch/arm/src/armv7-a/cp15_cacheops.h: Rename ARMv7-A cache.h to
-	  cp15_cache.h.  Things will be broken on this commit until I get the
-	  new cache.h in place (2014-7-26).
-	* arch/arm/src/armv7-a/cache.h: New cache.h file.  Renames all functions
-	  like cp15_XYZ_cache() to arch_XYZ_cache() and adds L2 cache support if
-	  L2 cache is enabled (2014-7-26).
-	* arch/arm/src/sama5/*.c (many files): Change naming from cp_XYZ_cache()
-	  to arch_XYP_cache() so that all cache operations will pick up L2
-	  support if it is enabled (2014-7-26).
-	* arch/arm/src/sama5/sam_boot.c: Enables cache early in boot-up sequence
-	  (2014-7-26).
-	* arch/arm/src/armv7-a/arm_l2cc_pl310.c and l2cc.h: Minor bugfixes/
-	  improvements (2014-7-26)
-	* arch/arm/src/armv7-a/Kconfig: L2 Cache currently depends on
-	  EXPERIMENTAL because it does not yet work properly (2014-7-26).
-	* include/nuttx/audio/audio.h: Move sub-sampling rate definitions from
-	  nxplayer.h to audio.h (2014-7-17).
-	* audio/pcm_decode.c: PCM: First cut at fast forward by sub-sampling.
-	  This design is overkill:  It manages too many audio buffers.  I think
-	  that a cleaner design could do all sub-sampling in place without
-	  managing additional audio buffers (2014-7-27).
-	* drivers/audio/audio_null.c:  Was not returning buffers to the upper
-	  level (2014-7-27)
-	* include/nuttx/audio/audio.h and audio/pcm_decode.c: Misc bugfixes
-	  while integrating fast forward by sub-sampling (2014-7-27).
-	* audio/pcm_decode.c: Back out a change; the fix really belongs in
-	  NxPlayer. (2014-7-27).
-	* arch/arm/src/lpc17xx/lpc17_adc.c and arch/arm/src/lpc17xx/lpc17_ethernet.c:
-	  ADC updates from Max.  Also fixes some syntax errors that I introduced in
-	  the last commit (2014-7-28).
-	* audio/pcm_decode.c:  Fix a logic error in a DEBUG assertion (2014-7-28).
-	* configs/sama5d4-ek/src/sam_pmic.c, dram_main.c, sama5d4-ek.h, Makefile.
-	  Add logic to disable the faulty PMIC.  This must be done with JP23 open.
-	  It is performed only from the DRAMBOOT loader (2014-7-28).
-	* drivers/audio/wm8904.c: Fix some compile problems with the WM8904 driver
-	  due to recent audio subsystem changes (2014-7-28).
-	* arch/arm/src/sama5/sam_timerisr.c and configs/sama5d3*/include/board*.h:
-	  Correct system timer frequency.  Input clock is MCK/2, not MCK
-	  (2014-7-29).
-	* fs/fs_automount.c and include/nuttx/fs/automount.h (plus hooks in other
-	  files):  Add support for an auto-mounter that will automatically mount
-	  and unmount a file system a media is inserted and removed (2014-7-29 .
-	* configs/sama5d4-ek/src/sam_automount.c:  Add automounter support for
-	  HSMCI0 and HSMCI1 (2014-7-29).
-	* configs/sama5d4-ek/Kconfig and src/sam_hsmci.c: Minor warning/latent
-	  bug clean-up of auto-mounter logic (2014-7-29).
-	* configs/sama5d4-ek/README.txt anand src/sam_nsh.c, fs/fs_automount.c,
-	  and include/nuttx/fs/automount.h: Cosmetic updates to comments and
-	  README files and some naming (2014-7-29).
-	* configs/sama5d4-ek/nsh/defconfig and nxwm/defconfig: The SAMA5D4-EK
-	  NSH and NxWM configurations now have the auto-mounter configured to
-	  automatically mount the FAT file system on HSMCI0 at /mnt/sdcard
-	  (2014-7-29).
-	* arch/arm/src/sama5/sam_hsmci.c: Add method to do RX transfer without
-	  DMA.  The 8-byte SCR transfer was failing silently with the DMA
-	  transfer, leaving the SD card in single bit mode (2014-7-29).
-	* arch/arm/src/sama5/sam_hsmci.c: Fix a problem on card insertion/removal
-	  callback handling.  Interrupts were being disable so that the callbacks
-	  occurred with interrupts disabled.  This resulted in loss of some
-	  interrupts and some not-so-good behaviors.  The solution is to perform
-	  all callbacks on the work thread unconditionally (2014-7-30).
-	* nuttx/fs/fs_automount.c: Auto-mounter:  Fix state setting.  Not
-	  harmful other than it can cause a debug assertion to fire if you
-	  manually unmount the media before removing it which is, of course,
-	  what you are supposed to do (2014-7-30).
-	* arch/arm/src/sama5/sam_hsmci.c and README files: Re-enable TX DMA and
-	  verify that DMA writes to the SD card are functional.  They are so now
-	  TX DMA is re-enabled in the driver.  This might affect the SAMA5D3
-	  platforms where the TX DMA problem was found.  The SAMA4D3 and 4 use
-	  the same HSMCI driver.  Much has change since then and it is not
-	  surprising that DMA is now functional.  However, the has not be re-
-	  verified on the SAMA5D3 which has a different DMA controller
-	  (2014-7-30).
-	* arch/arm/src/sama5/sam_dmac.c, sam_pio.c, and sam_pioirq.c: Changes
-	  needed for a clean SAMA5D3 build after all of the recent SAMA5D4
-	  changes (2014-7-31).
-	* configs/sama5d3x-ek/nsh/defconfig: Refresh configuration (2014-7-31).
-	* configs/sama5d3x-ek/Kconfig, README.txt, src/sam_wm8904.c, Makefile,
-	  sam_nsh.c, and sama5d3x-ek.h: Add support for the WM8904 audio CODEC
-	  (2014-7-31).
-	* configs/sama5d3x-ek/nxplayer:  Add a configuration to support the
-	  command line NxPlayer (2014-7-31).
-	* audio/audio.c: More debug output (2014-7-31).
-	* configs/sama5d3x-ek/README.txt: REAME update (2014-7-31).
-	* drivers/audio/wm8904.c:  Was not saving I2S interface instance
-	  (2014-7-31).
-	* sched/sem_wait.c: Use set_errno() and get_errno().  Direct access
-	  inside the OS may not be supported in the future (2014-7-31).
-	* drivers/audio/audio_null.c, vs1053.c, wm8904.c, include/nuttx/audio/audio.h,
-	  libc/audio/lib_buffer.c: Change how the end of the audio stream is
-	  detected by the leaf audio component.  This used to be done by looking
-	  for the first partial buffer.  That does not work with the in-place
-	  sub-sampling performed by the PCM decoder:  That always reduces the
-	  size of the buffer so that all buffers only partially filled by the
-	  time they get to the leaf.  Now, a flag is set in the audio buffer
-	  flags set to indicate the final buffer in the stream (2014-7-31).
-	* arch/arm/src/sama5/sam_ssc.c:  Needs to account for data offset in
-	  audio buffer (2014-7-31).
-	* drivers/audio/wm8904.c:  Can't reset the WM8904 unless we also
-	  reinitialize all registers.  Try to get a saner timeout based on
-	  sample rate, bits-per-sample, and buffer size (2014-7-31).
-	* arch/arm/src/sama5/Kconfig and sam_ssc.c:  SCC Frame Synch Delay and
-	  Start Delay are now configurable (2014-8-1).
-	* drivers/audio/wm8904_debug.c:  Add logic to dump WM8904 registers
-	  (2014-8-1).
-	* drivers/audio/wm8904.c: Fix an error in write logic.  I am not sure
-	  why this fixes the problem (2014-8-1).
-	* include/nuttx/audio/wm8904.h (and implementers of the interface):
-	  the WM8904 driver needs to know the frequency of the MCLK in order
-	  to set up the FLL to generate the correct bitrate (2014-8-1).
-	* WM8904:  Add an option to control WM8904 register dumping (2014-8-2).
-	* WM8904:  Add logic to program the FLL to achieve the bitrate
-	  (2014-8-1).
-	* arch/arm/src/sama5/sam_ssc.c:  Verify that the requested bit width
-	  is supported.  Correct some alignment tests that depend upon the data
-	  bit width (2014-8-2).
-	* audio/pcm_decode.c:  Correct the end of audio stream handling.  It was
-	  not being detected before so that logic was not examining the WAV
-	  header in the first buffer of the next audio file (2014-8-2).
-	* configs/sama5d3x-ek/nxplayer/defconfig:  Update with last WM8904
-	  settings (2014-8-2).
-	* drivers/audio/wm8904.c:  Disable the FFL at the end of playing
-	  (2014-8-2).
-	* include/nuttx/audio/wm8904.h:  Fix wm8904_dump_registers macro:
-	  Wrong number of parameters (2014-8-2).
-	* arch/arm/src/sama5/sam_pck.* and all SAMA5D board header files:
-	  Add Main clock as an option for the PCK clock source (2014-8-3).
-	* configs/sama5d*-ek/Kconfig and src/sam_wm8904.c: Add option to
-	  use MAINCK as source fort he WM8904 MCLK (2015-8-3).
-	* include/nuttx/audio/wm8904.h, configs/sama5d3x-ek/src/sam_wm8904.cm,
-	  and sama5d4-ek/src/sam_wm8904.c: WM8904 interface enable method now
-	  returns the previous interrupt state (2014-8-4).
-	* configs/sama5d3x-ek/src/sama5d3x-ek.h and sama5d4-ek/src/sama5d4-ek.h:
-	  Correct the WM8904 interrupt configuration, active high level. Fix
-	  that and don't pull-up (2014-8-4).
-	* configs/sama5d3x-ek/src/sam_wm8904.cm, and sama5d4-ek/src/sam_wm8904.c:
-	  Correct ordering of some WM8904initialization: Need to provide MCLK
-	  before initializing the WM8904, not after (2014-8-4).
-	* drivers/audio/wm8904.c and .h: Correct calculation of bitrate (I am
-	  not sure why this is correct). LR clock divisor is now a constant 32-
-	  bits per frame. Conditioned out interrupt logic; it is not being used.
-	  Also added some FLL lock interrupt/poll logic (which was subsequently
-	  disabled) (2014-8-4).
-	* SAMA5D3x-EK and SAMA4D4-EK: Add/update usage documents for media
-	  players (2014-8-4).
-	* drivers/audio/wm8904.c and .h:  Add reset logic to put the part back
-	  in its initial state after playing each WAV file.  Base samples per
-	  second on frame length, not bits-per-sample.  Use a different frame
-	  length for 8-bit and 16-bit data (2014-8-4).
-	* arch/arm/src/sama5/sam_hsmci.c:  TX DMA is again disabled for the
-	  SAMA5D3 family.  Although it works with the SAMA5D4 (which has a
-	  different DMA subsystem), it does not work with the SAMA5D3 (2014-8-5,
-	  see also 2014-7-30).
-	* audio/pcm_decode.c: Handle errors in the PCM WAV file in a way that
-	  the Nxplayer can recover gracefully:  Send and Audio Complete message
-	  (2014-8-5).
-	* arch/*/src/*/*_timerisr.c, up_initialize.c, and up_internal.h: Re-name
-	  up_timerinit() to up_timer_initialize() for compatibility with new
-	  tickless OS interface name (2014-8-6).
-	* arch/*/src/*/Make.def:  Don't build existing timer initialization
-	  logic if CONFIG_SCHED_TICKLESS is defined (2014-8-6).
-	* include/nuttx/arch.h:  First cut at platform-specific interfaces
-	  needed to support tickless OS option (2014-8-6).
-	* sched/Kconfig: Add a new option CONFIG_SCHED_TICKLESS to enable the
-	  tickless OS.  This is a work in progress but should be relatively
-	  safe since the new features are only enabled by this option (Safer
-	  but not 100% safe since it does not protect from typos and other
-	  dumb errors) (2014-8-6).
-	* arch/sim/src/Makefile, up_idle.c, up_internal.h, and up_tickless.c:
-	  Add support for a simulated interval timer support verification of
-	  the tickless OS (2014-8-6).
-	* include/nuttx/arch.h: Added another tickless OS interface to get
-	  the timer remaining on the interval timer (2014-8-6).
-	* include/nuttx/clock.h, sched/clock_initialize.c and clock_internal.h:
-	  If CONFIG_SCHED_TICKLESS is defined, then the global variable
-	  g_system_timer does not exist (2014-8-6).
-	* sched/Makefile: Don't build in sched_processtimer.c if
-	  CONFIG_SCHED_TICKLESS is selected (2014-8-6).
-	* sched/clock_gettime.c and clock_settime.c: Use the clock_systimer()
-	  macro, do access the g_system_timer() global directly (2014-8-6).
-	* sched/clock_systimer.c: Uses interval timer interfaces to get the
-	  time if CONFIG_SCHED_TICKLESS is selected (2014-8-6).
-	* sched/sched_timerexpiration.c, Makefile, os_internal.h,
-	  sched_addreadytorun.c, sched_processtimer.c, sched_unlock.c,
-	  wd_cancel.c, wd_internal.h, and wd_start.c: Implements the
-	  tickless OS (2014-8-7).
-	* Many files: Remove CONFIG_DISABLE_CLOCK.  Why?  This option is not
-	  really very useful and was only selected in a few unusable, mostly
-	  unusable configurations anyway (m9s12/ostest, kl25z/minnsh,
-	  z180/ostest, 8051, sh1, z80, and z8).  The only real loss is probably
-	  to the kl25z/minsh configuration .  And with the addition of the
-	  tickless OS, I just wanted to make the pain go away (2014-8-7).
-	* Many files: Change CONFIG_MSEC_PER_TICK to CONFIG_USEC_PER_TICK.
-	  This gives more options for system timers in general, but more
-	  importantly, let's us realize higher resolution for the case of
-	  CONFIG_SCHED_TICKLESS=y -- of course, at the risk of some new
-	  integer overflow problems 2014-8-7).
-	* Many files: Change all time conversions.  Yech.  New timer units
-	  in microseconds breaks all existing logic that used milliseconds
-	  in the conversions.  Something likely got broken doing this,
-	  probably because I confused a MSEC2TICK conversion with a TICK2MSEC
-	  conversion (2014-8-7).
-	* arch/sim/src/up_tickless.c and sched/sched_timerexpiration.c: The
-	  tickless OS now appears fully functional and passes the OS test
-	  on the simulator with no errors (2014-8-7).
-	* sched/mqueue: Move POSIX message queue files from sched/ to
-	  sched/mqueue (2014-8-8).
-	* sched/signal: Move signal-related files from sched/ to sched/signal
-	  (2014-8-8).
-	* sched/pthread: Move all pthread files from sched/ to sched/pthread
-	  (2014-8-8).
-	* sched/semaphore: Move POSIX counting semaphore files from sched/ to
-	  sched/semaphore (2014-8-8).
-	* sched/environ: Move environment files from sched/ to sched/environ
-	  (2014-8-8).
-	* sched/group: Move group logic from sched/ to sched/group (2014-8-8).
-	* sched/wdog: Move watchdog functions from sched/ to sched/wdog
-	  (2014-8-8).
-	* sched/irq: Move interrupt dispatch logic from sched/ to sched/irq
-	  (2014-8-8).
-	* sched/clock: Move clock functions from sched/ to sched/clock
-	  (2014-8-8).
-	* sched/timer: Move POSIX timer files from sched/ to sched/timer
-	  (2014-8-8).
-	* sched/paging: Move page fill sources from sched/ to sched/paging
-	  (2014-8-8).
-	* sched/init: Move initialization functions from sched/ to sched/init
-	  (2014-8-8).
-	* sched/errno: Move errno related files from sched/ to sched/errno
-	  (2014-8-8).
-	* sched/task: Move task control files from sched/ to sched/task
-	  (2014-8-8).
-	* sched/: Move a few files in sched/ that did not seem to have a home to
-	  sched/signal and sched/task (2014-8-8).
-	* sched/sched: Move scheduler files from sched/ to sched/sched
-	  (2014-8-8).
-	* (Many files): Replace os_internal.h with sched/sched.h in files that
-	  actually reference something in sched.h (2014-8-8).
-	* sched/task/exit.c: Move sched/exit.c to sched/task/exit.c (2014-8-8).
-	* (Many files): Remove os_internal.h it has been replace by several new
-	  header files under sched/.  There have been some sneak inclusion paths
-	  via os_internal.h, so expect a few compilation errors for some
-	  architectures (2014-8-8).
-	* Documentation/NuttxPortingGuide.html, arch/sim/src/up_tickless.c, and
-	  include/nuttx/arch.h: Fix errors in documentation and comments related
-	  to the Tickless OS.  From Vijay Kumar (2014-9-9).
-	* arch/arm/src/sama5/sam_tc.c and .h: Can now handle non-constant
-	  BOARD_MCK_FREQUENCY. Also now supports methods to attach user
-	  interrupt handlers (2014-8-9).
-	* drivers/audio/audio_null.c: Fix an error in a variable name
-	  (2014-8-9).
-	* arch/arm/src/sama5/sam_oneshot.c, .h, Kconfig, Make.defs, sam_tc.c,
-	  .h, and sam_adc.c: Add support for a one-shot timer wrapper around
-	  the low-level timer/counter logic.  This also involved several changes
-	  that rippled into the ADC driver (untested) (2014-8-9).
-	* arch/arm/src/sama5/sam_freerun.c, .h, Kconfig, and Make.defs: Add
-	  support for a free-running timer wrapper around the low-level
-	  timer/counter logic (2014-8-9).
-	* arch/arm/Kconfig, src/sama5/sam_tickless.c, Kconfig, Make.defs: Use
-	  the one-shot and free-running timers to implement tickless OS support
-	  for SAMA5 (2014-8-9).
-	* arch/arm/src/sama5/sam_oneshot.c and sam_tc.c: Fix several bugs in
-	  timer/counter interrupt logic and one-shot timer logic.  Comments and
-	  debug output updated in additional files (2014-8-10).
-	* sched/wdog/wd_start.c: Correct a bug in Tickless OS support: logic to
-	  detect changes in head of timer list was wrong (2014-5-10).
-	* sched/sched/sched_timerexperation.c, sched.h, and wdog/wd_start.c:  In
-	  tickless mode, need to stop the interval timer before inserted a new
-	  delay into the timer list.  Otherwise, the time is incorrect on the
-	  first entry of the list (2014-8-11).
-	* arch/arm/src/sama5/sam_freerun.c and sam_oneshot.c:  Correct bad time
-	  conversion, 1000000 not 1000 to convert seconds to microseconds
-	  (2014-8-11).
-	* sched/sched/sched_timerexpiration.c:  Fix inaccurate time conversion.
-	  Remove MSEC_PER_TICK from calculation and convert uint32_t to uin64_t
-	  (2014-8-11).
-	* libc/time/lib_localtime.c, private.h, tzfile.h and several header and
-	  make-related files:  Adds support for localtime.  From Max Neklyudov
-	  (2014-8-12)
-
-7.5 2014-09-28 Gregory Nutt <gnutt@nuttx.org>
-
-	* clock/clock_systimespec.c and sched/clock/clock_gettime.c:  When
-	  reading the system timer, don't read a struct timespec, convert it
-	  to a fake tick count, then back to a timespec (2014-8-15).
-	* sched/clock/Make.defs, clock_gettime.c, clock_settime.c, include/time.h,
-	  nuttx/clock.h, configs/vsn/src/sif.c: Remove CLOCK_ACTIVETIME. It is non-
-	  standard, unused, and gets in the way of maintaining clocks (2014-8-15).
-	* libc/time/lib_localtime.c:  Modified to that the coding style is much
-	  closer to NuttX coding style.  The local header files private.h and
-	  tzfile.h were removed and incorporated into lib_localtime.c.  All
-	  conditional compilation within lib_localtime.c that unconditionally
-	  evaluated to FALSE was removed (2014-8-15).
-	* drivers/net/Kconfig and include/nuttx/arch.h: Standardize a PHY
-	  interrupt attachment interface (2014-8-16).
-	* configs/Kconfig, sama5d3-xplained, sama5d3x-ek, and sama5d4-ek:
-	  Convert existing board specific PHY interrupt interfaces to use newly
-	  defined standard interface (2014-8-16).
-	* include/net/slip.h:  Move SLIP prototypes from net.h to slip.h
-	  (2014-8-16).
-	* include/net/net.h and net/: Fix some missing function headers
-	  (2014-8-16).
-	* drivers/net/phy_notify.c, include/nuttxarch.h, net/phy.h, and
-	  ioctl.h: Add support for an ioctl that can be used to notify an
-	  application when there is a change in the network status signalled
-	  by a PHY interrupt (2014-8-16).
-	* drivers/net/phy_notify.c, include/net/if.h, ioctl.h, netdev.h, phy.h,
-	  and net/netdev/netdev_ioctl.c: Finishes the ioctl definition to
-	  subscribe to PHY events. Revamp network ioctl signature to support
-	  arguments other than struct mii_ioctl_data (2014-8-16).
-	* arch/arm/src/stm32/stm32_eth.c: Modified to support the change to the
-	  network ioctl signature changes.  Also add support for new ioctl to
-	  setup PHY event notifications (2014-8-16).
-	* arch/arm/src/sama5/sam_emaca.c, sam_emacb.c, and sam_gmac.c: Implement
-	  all network ioctls, including the new ioctl to setup PHY event
-	  notifications (2014-8-16).
-	* include/net/if.h:  Add some helper macros to make the code that uses
-	  the ioctls a little more compact (2014-8-17).
-	* libc/stdio/lib_sscanf.c: NuttX libc tried to guess how many characters
-	  to parse, extracted them into a buffer, then ran strtol() on that
-	  buffer. That guess is often wrong. A better approach would be to
-	  call strtol() directly on the input data, using the endptr return
-	  value to determine how many characters to skip after parsing.  From
-	  Kosma Moczek (2014-8-18).
-	* net/arp/arp_dump.c:  Add missing configuration option to select
-	  dumping of ARP packet headers.  Move ARP dumping logic from
-	  arp_inout.c to its own file (2014-8-18).
-	* net/arp/arp_out.c: Move arp_out() from arp_inout.c to its own file
-	  (2014-8-18).
-	* net/arp/arp_arpin.c: Move arp_arpin() from arp_inout.c to its own file
-	  (2014-8-18).
-	* net/arp/arp_ipin.c: Rename arp_inout.c to arpipin.c because that is
-	  all that is left in the file (2014-8-18).
-	* net/arp/arp_format.c: Move the logic that formats an ARP packet into a
-	  separate file where it can be re-used.  (2014-8-18).
-	* net/arp/arp_out.c and net/pkt/pkt_send.c:  Change how the IFF_NOARP
-	  flag is handled.  This should be set only when data is moved into the
-	  buffer and cleared after tested by the ARP logic.  Setting it globally
-	  can cause packets to be sent with no valid MAC addresses (2014-8-18).
-	* net/arp/arp_send.c: Partial implementation of logic to send ARP
-	  requests to assure that an IP address mapping is present in the ARP
-	  table (2014-8-18).
-	* net/arp/arp_poll.c: Finished the implementation of logic to send ARP
-	  requests.  Complete, fully hooked into the networking logic, and ready
-	  for test (but still untested) (2014-8-18).
-	* net/icmp/icmp_ping.c, net/socket/net_sendfile.c, sendto.c,
-	  net/tcp/tcp_send_buffered.c, and tcp_send_unbuffered.c:  If
-	  CONFIG_NET_ARP_SEND is enabled, then all ICMP, TCP, and UDP send
-	  operations will call arp_send() before attempting the real send
-	  operation.  arp_send() will check if the IP address mapping is in
-	  the ARP table and, if not send ARP requests periodically until it is.
-	  This eliminates losing the first outgoing message because there is not
-	  mapping in the ARP table (2014-8-18).
-	* net/arp/arp_notify.c, arp_send.c, arp_arpin.c, and arp.h:  Add
-	  signalling logic so that we do not have to wait so long with the
-	  network responses to ARP requests quickly (2014-8-19).
-	* include/nuttx/lcd/ili9341.h: Add a register definition header file
-	  for the ILI9341 LCD (2014-8-19).
-	* net/arp/Kconfig: ARP request logic is no longer EXPERIMENTAL
-	  (2014-8-20).
-	* net/arp/arp_send.c: ARP request logic needs to do the right thing if
-	  (1) the address is a broadcast or multicast address, and (2) if the
-	  IP address lies outside of the network.  Problem noted by Manuel Stuehn
-	  (2014-8-20).
-	* configs/sam4e-ek/src/Kconfig and src/sam_ili9341.c: Add ILI9341-based
-	  LCD driver.  Fully functional (2014-8-20).
-	* configs/sam4e-ek/nxwm:  Add an NxWM configuration for the SAM4E-EK
-	  (2014-8-21).
-	* configs/viewtool-stm32f107: Refresh some configurations (2014-8-20).
-	* nuttx/sched/wdog: If we run out of pre-allocated watchdog times, the
-	  logic will allocate additional timers from the heap.  A reserve of
-	  pre-allocated watchdog timers is maintained so that there will always
-	  be timers available for interrupt handlers (2014-8-21).
-	* include/nuttx/wdog.h (and many affected files):  wdog.h does not
-	  contain any application interface, only internal OS interface.
-	  Further, it is non-standard.  Move wdog.h from include/ to
-	  include/nuttx (2014-8-21).
-	* Documentation/NuttxPortingGuide.h:  For the same reason as above, move
-	  the description of the watchdog timer interfaces from the Users Guide
-	  to the Porting Guide (2014-8-21).
-	* arch/arm/src/stm32/stm32_uart.h: STM32 F401: Correct support for
-	  USART6 on this chip.  From Freddie Chopin (2014-8-22).
-	* nuttx/sched/wdog and include/nuttx/wdog.h:  Add support for statically
-	  allocated watchdog timer (also eliminate some unconventional typing)
-	  (2014-8-22).
-	* configs/p112/ostest and tools/mkdeps.c:  Changes to try to get P112 to
-	  compile with latest SDCC (it still does not) (2014-8-22).
-	* sched/group/group_leave.c: Need to release the address environment when
-	  the task group is released (2014-8-22).
-	* mm/mm_granreserve.c and and mm_granmark.c: gran_reserve():  Add a
-	  new function to reserve unallocatable regions in the granule heap
-	  (2014-8-23).
-	* include/nuttx/pgalloc.h and mm/mm_pgalloc.c:  Add a simple page
-	  allocator based on the existing NuttX granule allocator.  I am not
-	  certain if the granule allocator is sufficiently deterministic for
-	  long range use, but it gets get a page allocator in place for testing
-	  very quickly (2014-8-23).
-	* ARMv7-A: Add skeleton implementation and build support for process
-	  address environments (2014-8-23).
-	* Many files: Change CONFIG_ADDRENV to CONFIG_ARCH_ADDRENV; change how
-	  it is selected -- the architecture must first declare support
-	  (2014-8-24).
-	* include/nuttx/addrenv.h, arch/arm/include/arch.h, armv7-a/irq.h, and
-	  other files:  Add addrenv.h; First cut at Cortex-A address environment
-	  structures; Add configuration options to setup address environment
-	  (2014-8-24).
-	* addrenv interface changes: up_addrenv_create() may need to create
-	  .text and .bss/.data separately because of differing access privileges
-	  (read/execute vs read/write).  And, as a consequence, up_addrenv_vaddr()
-	  needs to be split into up_addrenv_vtext() and up_addrenv_vdata().
-	  Affects several files (2014-8-24).
-	* arch/arm/src/armv7-a/arch_coherent_cache.c:  New file.  These cache
-	  operations are called from the ELF loader in order to flush D-cache
-	  and invalidate I-cache after an ELF module has been loaded into memory.
-	  With this change, ELF modules work correctly on the SAMA5/Cortex-A
-	  platform (2014-8-24).
-	* configs/sim: Add build support for ELF modules.  Useless at the moment
-	  because there is no x86 relocation logic support (2014-8-25).
-	* configs/sim: Update some sim/ defconfig files.  This now automatically
-	  switches them to x86_64 builds (2014-8-25).
-	* arch/arm/include/arch.h, armv7-a/irq.h, src/armv7-a/arm_addrenv.c,
-	  armv7-a/arm_mmu.c/.h, sama5/Kconfig, Make.defs, sam_pgalloc.c,
-	  include/nuttx/addrenv.h, arch.h, pgalloc.h, mm/Kconfig, mm_pgalloc.c,
-	  sched/init/os_start.c: Cortex-A/SAMA5 address environment support is
-	  code complete (untested) (2014-8-25).
-	* arch/arm/include/tiva and src/tive:  Add support for the TI CC3200.
-	  From Jim Ewing (2014-8-26).
-	* configs/cc3200-launchpad:  Add support for the TI CC3200 Launchpad.
-	  From Jim Ewing (2014-8-26).
-	* arch/*/*_blocktask.c, arch/*/*_unblocktask.c, and arch/*/*_exit.c:
-	  Add address environment support to all implementation of up_block_task(),
-	  up_unblock_task(), and _exit() (2014-8-31).
-	* arch/arm/src/stm32/stm32_flash.c and chip/stm32_flash.h,
-	  include/nuttx/progmem.h, and configs/vsn/src/sif.c: STM32 FLASH fixes:
-	  use size_t instead of uint16_t, make interface more generic.  From
-	  Freddie Chopin (2014-8-28).
-	* Kconfig, Makefile.unix, Makefile.win, syscall/Kconfig,
-	  arch/arm/src/armv6-m/svcall.h, up_svcall.c, armv7-m/svcall.h, and
-	  up_svcall.c: The system call library can now be built with
-	  CONFIG_NUTTX_KERNEL.  New selection: CONFIG_LIB_SYSCALL (2014-8-28).
-	* arch/arm/src/armv7-a/syscall.h: "Add an ARMv7-A system call definition
-	  header file (2014-8-28).
-	* arch/arm/include/armv7-a/irq.h, arm_syscall.c, syscall/Kconfig,
-	  syscall_funclookup.c, syscall_nparms.c, and syscall_stublookup.c:
-	  ARMv7-A:  Add SYSCALL handling logic (2014-8-28).
-	* nuttx/fs/, drivers/, and sched/:  Remove explicit references to errno.
-	  That is a problem from within the kernel for certain configurations
-	  (there are still more references to be fixed) (2014-8-28).
-	* sched/clock/clock.h: In some configurations, g_system_tmer must be
-	  extern'ed as a private variable in the OS (2014-8-28).
-	* include/errno.h and nuttx/clock.h:  errno and g_system_timer must be
-	  handled in a special way if there are external modules (2014-8-28).
-	* include/sys/syscall.h: System definitions should depend on
-	  CONFIG_LIB_SYSCALL not CONFIG_NUTTX_KERNEL (2014-8-28).
-	* arch/arm/src/armv7-a: Rename syscall.h to svcall.h to work around
-	  some include path name collisions; fix some compilation errors in
-	  SYSCALL logic when debug is enabled (2014-8-29).
-	* arch/arm/include/arm/syscall.h and armv7-a/syscall.h: Fix ARM7/9
-	  and Cortex-A SYSCALLs:  For threads in SVC mode, the SVC instructions
-	  clobbers R14.  This must be taken account in the inline assembly
-	  (2014-8029).
-	* arch/arm/src/armv7-a/arm_syscall.c: Fix hard coded values in
-	  dispatch_syscall() inline assembly. Back out/correct part of last
-	  change; that was going the wrong direction.  With this change, the
-	  apps/examples/elf test works with address environments and call
-	  gates! (2014-8029).
-	* Many, many files:  Renamed CONFIG_NUTTX_KERNEL to CONFIG_BUILD_PROTECTED.
-	  Added configuration CONFIG_BUILD_KERNEL that will be used to generate
-	  a kernel (only) with full process support and will execute programs
-	  only from a file system.  This new configuration is defined but only
-	  partially integrated (2014-8-29).
-	* tools/refresh.sh: Add a tool to make refreshing configurations easier
-	  when you want to do a lot of them (2014-8-29).
-	* tools/mksyscall.c: Build syscalls that do not need header files (there
-	  are none, however) (2014-8-30).
-	* include/nuttx/errno.h syscall/syscall.csv and syscall_funclookup.c:
-	  Yet more issues with errno access via syscalls fixed (2014-8-30).
-	* Makefile.unix, Makefile.win, Directories.mk, FlatLibs.mk, ProtectedLibs.mk,
-	  and KernelLibs.mk:  Separate the common directory selection logic
-	  into Directories.mk; add support for kernel build.  Move library
-	  selection logic in common *.mk files, one each for flat-, protected-,
-	  and kernel- mode builds (2014-8-30).
-	* include/nuttx/syscall.h syscall/syscall.csv: clock_systimer needs the
-	  same fix as for get/set_errno when used with system calls (2014-8-30).
-	* sched/Kconfig sched/init/os_bringup.c tools/cfgdefine.c: Add
-	  configuration options to start the system from a program on a file
-	  system (2014-8-30).
-	* mm/ and include/nuttx/mm.h: Remove CONFIG_MM_MULTIHEAP.  Non-multiheap
-	  operation is no longer supported (2014-8-31).
-	* configs/sama5d4-ek/kernel: Add a configuration for testing the
-	  kernel build configuration (still a work in progress) (2014-8-31).
-	* include/nuttx/arch.h, kmalloc.h, mm.h, sched/init/os_start.c,
-	  sched/sched_free.c, and arch/arm/src/sama5/sam_allocateheap.c: Clean
-	  up some kernel build heap allocation issues.  The Cortex-A kernel
-	  build now compiles without errors (but cannot link until brk() and
-	  sbrk() are implemented) (2014-8-31).
-	* mm/*mm_brkaddr.c, *mm_extend.c, Makefile, and include/nuttx/mm.h: Add
-	  low-level memory management hooks that will be needed to support brk()
-	  and sbrk() (2014-8-31).
-	* Rename krealloc() to kmm_realloc() and kmemalign to kmm_memalign() for
-	  consistency with the rest of the naming (2014-8-31).
-	* Rename kurealloc() to kumm_realloc(), kumemalign to kumm_memalign(),
-	  and kufree to kumm_free for consistency with the rest of the naming
-	  (2014-8-31).
-	* Rename kumalloc() to kumm_malloc() and kuzalloc to kumm_zalloc() for
-	  consistency with the rest of the naming (2014-8-31).
-	* Rename kmalloc() to kmm_malloc(), kzalloc() to kmm_zalloc(), and
-	  kfree() to kmm_free() and kuzalloc to kumm_zalloc() for consistency
-	  with the rest of the naming (2014-8-31).
-	* mm/mm_sbrk.c, kmm_sbrk.c, umm_sbrk.c, and include/unistd.h: Initial
-	  implementation of sbrk() (2014-9-1).
-	* arch/arm/src/armv7-a/arm_pgalloc.c, mm/umm_malloc.c, and mm_zalloc.c:
-	  Completes the implementation of sbrk() (untested) (2014-9-1).
-	* configs/cc3200-launchpad:  Updates to the CC3200-Launchpad configuration
-	  for better compatibility.  From Jim Ewing (2014-9-1).
-	* Removed all support from the 8051 from the NuttX source tree.  The
-	  obsoleted code along with the removal patch can now be found at
-	  misc/Obsoleted/ (2014-9-1).
-	* sched/sched/sched_releasetcb.c and task_setup.c, include/nuttx/arch.h
-	  and sched.h, and arch/*/*/*/Make.defs:  There used to be two ways to
-	  pass parameters to new tasks, depending upon the configuration:  Either
-	  (1) argv[] as created as an array with each string strdup'ed.  Or (1)
-	  argv[] array and strings were created on the stack before the new task
-	  was started.   Now, there is only one way, way (1).  Way (2) might be
-	  slightly more compact, but this is not worth carry the complexity of
-	  two different ways of doing the same thing (2014-9-1).
-	* sched/init/os_start.c: Fix error in initialize of IDLE TCB due to last
-	  change.  The argument list is no long in the TCB, but in the stack.
-	  But not for the IDLE task.  It needs its own mini-argv[] list so that
-	  it looks more like other threads (2014-9-1).
-	* arch/arm/src/armv7-a/arm_addrenv.c, include/nuttx/addrenv.h, and
-	  mm/umm_*.c: Space at the beginning of the process data space is now
-	  reserved for user heap management structures.  In the kernel build
-	  mode, these heap structures are shared between the kernel and use
-	  code in order to allocate user-specific data (2014-9-2).
-	* include/unistd.h, nuttx/mm.h, and kmalloc.h, sched/init/os_start.c
-	  and sched/sched/sched_free.c, mm/kmm_sbrk.c and mm_sbrk.c, and
-	  arch/arm/src/sama5/sam_allocateheap.c:  Restructuring of build to
-	  allow use of use-space allocators by kernel logic in the kernel
-	  build (2014-9-2).
-	* arch/arm/include/armv7-a/irq.h, arm_syscall.c, crt0.c,
-	  include/nuttx/addrenv.h, and mm/umm_*.c:  Add support for delivery
-	  of use-mode signals in the kernel build (2014-9-2).
-	* mm/mm_graninit.c: Granule allocator initialization uses wrong
-	  allocator to setting aside kernel memory (2014-9-3).
-	* sched/init/os_start.c: IDLE TCB setup needs to indicate that the
-	  IDLE thread is a privileged, kernel thread (2014-9-3).
-	* include/nuttx/sched.h: Add a flag to group structure:  If the group
-	  is created by a kernel thread, then all resources in the group must
-	  be privileged (2014-9-3).
-	* sched/group/group_malloc.c, group_zalloc.c, group_free.c,
-	  group_create.c, group.h: Group creation logic must use new group flag
-	  when allocating resources so that the privileges on the resource are
-	  set correctly (2014-9-3).
-	* sched/Kconfig and sched/init/os_bringup.c: Add capability to perform
-	  initial board initialization on a separate worker thread (2014-9-3).
-	* tools/mkexport.sh: Fix 'make export'.  Adding subdirectories to the
-	  sched/ directory broke the header file collection logic (2014-9-4).
-	* Makefile.unix, Makefile.win, FlatLibs.mk, KernelLibs.mk, and
-	  ProtectedLibs.mk: In the kernel or protected builds, only the user
-	  libraries should be exported (2014-9-4).
-	* Makefile.unix, Makefile.win, and tools/mkexport.sh: In 'make export',
-	  do not copy internal header files or build scripts if this is a
-	  kernel or protected build (014-9-4).
-	* tools/mkexport.sh, arch/*/src/Makefile, arm/src/a1x/Make.defs,
-	  sama5/Make.defs, armv7-a/crt0.c:  The 'make export' target needs to
-	  bundle up the user C startup file (crt0), not the kernel head object
-	  for the kernel and protected builds (2014-9-4).
-	* tools/mkexport.sh: Add .config file to export package (2014-9-5).
-	* configs/16z:  Support for this board has been removed from the NuttX
-	  source tree (but still can be found in the misc/Obsoleted directory).
-	  This port is not ready for usage but may return to the NuttX tree
-	  at some point in the future (2014-9-5).
-	* tools/Makefile.export and mkexport.sh: The apps/ import build requires
-	  that we extract more information from the platform Make.defs file
-	  (2014-9-5).
-	* tools/Makefile.export and mkexport.sh: Need to export the setting of
-	  WINTOOL as well (2014-9-5).
-	* SAMA5D4-EK kernel configuration now builds NSH instead of examples/elf
-	  (2014-9-6).
-	* libc/pthread/pthread_attrinit.c, sched/pthread/pthread_create.c, and
-	  include/nuttx/pthread.h:  Fix some conditional compilation in kernel
-	  build mode.  And, while we are touching this logic, make
-	  g_default_pthread_attr const (2014-9-7).
-	* arch/arm/src/armv7-a/arm_addrenv.c: Correct size comparison (pages vs.
-	  sections) (2014-9-7).
-	* configs/sama5d4-ek/src/sam_bringup.c and sama5d4-ek.h:  Need to call
-	  elf_initialize() on bring-up before attempting to load ELF modules
-	  (2014-9-7).
-	* arch/arm/src/armv7-a/arm_addrenv.c: Fix loop counter... was overrunning
-	  a table on larger ELF files (2104-9-7).
-	* arch/arm/src/sama5/sam_memories.c, sam_pgalloc.c, and sam_pgalloc.h: In
-	  kernel build with address environment, need logic to map user virtual
-	  addresses to physical addresses, and vice versa (2104-9-7).
-	* SAM3X/Arduino Due: Fix typo in sam3x_periphclks.h; add SCLK
-	  definitions to board.h header file.  From Fabien Comte (2014-9-8).
-	* Several pthread interfaces: Add const storage class to the phthread
-	  parameters.  From Freddie Chopin (2014-9-8).
-	* libc/math: Corrected atan2 implementations from Denis Arnst (2014-9-8).
-	* sama5d4-ek/knsh:  Rename the kernel configuration to knsh to better
-	  match the naming used with other platforms (2014-9-8).
-	* configs/cc3200-launchpad/README.txt: Add README file for the CC3200
-	  Launchpad (2014-9-9).
-	* configs/sama5d4-ek/README.txt, Kconfig, knsh/defconfig.ROMFS,
-	  src/sam_bringup.c, and sama5d4-ek.h: SAMA5D4-EK kernel config can now
-	  boot from a ROMFS file system (2014-9-9).
-	* LibTargets.mk, Makefile.unix, and Makefile.win: Move common library
-	  targets out of Makefile.unix and Makefile.win into a new LibTargets.mk
-	  (2014-9-9).
-	* LibTargets.mk and configs/sama5d4-ek/knsh/Make.defs: Add logic that will
-	  permit us to build user libraries with different CFLAGS than kernel
-	  code.  This is needed because we need the -fno-common option when
-	  building ELF code to prevent SHN_COMMON relocations (2014-9-8).
-	* binfmt/libelf/libelf_symbols.c, libelf_bind.c, and all implementations
-	  of up_relocate(): ELF relocations.  Some relocation types do not have
-	  a named symbol associated with them.  The design did not account for
-	  that case (2014-9-9).
-	* binfmt/binfmt_execmodule.c: When allocating a stack for a new process
-	  using the user-space allocator, need to select the address environment
-	  first (2014-9-9).
-	* arch/Kconfig, arm/src/armv7-a/pginline.h, arm_addrenv.c, and
-	  arm_pgalloc.c and include/nuttx/addrenv.h: Add configuration to use
-	  the fixed DRAM mapping for the page pool (if available) instead of
-	  remapping dynamically to access L2 page tables and page data.  Also,
-	  add logic in address environment creation to initialize the shared
-	  data at the beginning of the .bss/.data process memory region
-	  (2014-9-10).
-	* configs/sama5d4-ek/elf and knsh: These configurations now use the
-	  fixed DRAM mapping for manipulating the page memory pool (2014-9-10).
-	* arch/arm/include/arch.h and src/armv7-a/arm_addrenv.c,
-	  nuttx/binfmt/binfmt_execmodule.c, libelf/libelf_addrenv.c,
-	  libelf_load.c, libnxflat/libnxflat_addrenv.c, include/nuttx/arch.h, and
- 	  mm/umm_initialize.c:  Add logic to initialize the per-process user
-	  heap when each user process is started (2014-9-10).
-	* sched/clock/clock.h, clock_initialize.c, and clock_settime.c: Remove
-	  vestiges of g_tickbias; apply bias instead to g_basetime (2014-9-10).
-	* include/nuttx/lib.h, sched/init/os_start.c, and
-	  configs/ea3131/locked/mklocked.sh: Replace the empty lib_initialize()
-	  function with a pre-processor macro (2014-9-11).
-	* libc/misc/lib_stream.c: When a privileged thread exits, we have to use
-	  the kernel allocator to free memory; when an unprivileged thread exits,
-	  we don't have to do anything... heap memory will be cleaned up when the
-	  address environment is torn down (2014-9-11).
-	* arch/arm/src/stm32/stm32_serial.c and chip/stm32f20xxx_rcc.h: Fix for
-	  UART7 and UART8 on STM32 clock enable from Aton (2014-9-11).
-	* arch/arm/src/armv7-a/arm_vectors.S: ARMv7-A: Exception register
-	  save/restore needs to work a little differently if we support user
-	  mode processes (2014-9-11).
-	* configs/cc3200-launchpad/src/cc3200_leds.c and other board files: Add
-	  LED support for the CC3200 Launchpad.  From Jim Ewing (2014-9-11).
-	* arch/arm/src/armv7-a/arm_initialstate.c:  All tasks, even user mode
-	  tasks, must start in supervisor mode until they get past the start-up
-	  trampoline (2014-9-11).
-	* arch/arm/src/armv7-a/arm_vectors.S: Fix logic for returning from
-	  exceptions to user-mode contexts.  NuttX processes are now functional
-	  on the Cortex-A (2014-9-11).
-	* arch/arm/src/armv7-a/arm_fullcontextrestore.S, arm_syscall.c, crt0.c,
-	  and svcall.h: Modify up_fullcontextrestore() for CONFIG_BUILD_KERNEL.
-	  It changed CPSR while in kernel.  That will crash if the new CPSR is
-	  user mode while executing in kernel space.  Fixed by adding a
-	  SYS_context_restore system call.  There is an alternative, simpler
-	  modification to up_fullcontextrestore() that could have been done:  It
-	  might have been possible to use the SPSR instead of the CPRSR and then
-	  do an exception return from up_fullcontextrestore().  That would be
-	  more efficient, but I never tried it (2014-9-12).
-	* binfmt/libelf/libelf_load.c: ELF: Critical bugfix.. BSS was not being
-	  cleared (2014-9-12).
-	* configs/sama5d4-ek/knsh/defconfig and defconfig.ROMFS: Enable NSH
-	  file applications in these configurations (2014-9-12).
-	* libc/Kconfig, unistd/lib_execsymtab.c, configs/sim/nsh/defconfig, and
-	  stm32f4discovery/posix_spawn/defconfig: Having a symbol table is an
-	  option.  There are no symbol tables with CONFIG_BUILD_KERNEL, for
-	  example (2014-9-12).
-	* syscall/syscall.csv and include/sys/syscall.h: exevc, execvl,
-	  posix_spawn, and posix_spawnp were not properly integrated as system
-	  calls (2014-9-12).
-	* syscall/syscall_lookup.h: Fix typos in the stub lookup table
-	  (2014-9-12).
-	* configs/stm32f4discovery/netnsh, Kconfig, README.txt, and
-	  include/board.h: Add the network enabled NSH configuration for the
-	  STM32F4Discovery board with the STM32F4DIS-BB base board installed
-	  (2014-9-13).
-	* nuttx/mm/umm_sbrk.c: Fix a typo in use of a configuration setting
-	  (2014-9-13).
-	* configs/stm32f4discovery/README.txt: Add STM32F4DIS-BB GPIO pin
-	  usage (2014-9-13).
-	* arch/Kconfig, arch/arm/include/arch.h, src/armv7-a/arm_addrenv.c,
-	  sama5/sam_pgalloc.c, and include/nuttx/addrenv.h: Add a configuration
-	  option for dynamic stack management (stack management not yet
-	  implemented) (2014-9-13).
-	* arch/Kconfig arm/src/armv7-a/addrenv.h, arm_addrenv.c, and
-	  arm_addrenv_utils.c, a1x/Make.defs, and sama5/Make.defs,
-	  include/nuttx/addrenv.h and arch.h: Move static helper routines from
-	  arm_addrenv.c and may them global so that they can be shared by
-	  forthcoming stack address environment logic (2014-9-13).
-	* arch/arm/src/armv7-a/arm_addrenv_stack.c, arm_addrenv.c,
-	  a1x/Make.defs, sama5/Make.defs, and include/nuttx/arch.h: Add logic
-	  needed to manage a virtualized stack.  Not yet incorporated into
-	  base OS logic (2014-9-13).
-	* sched/task/task_posixspawn.c: Kernel proxy thread should be a kernel
-	  thread, not a user task (2014-9-14).
-	* include/sched.h and spawn.h, libc/Kconfig, spawn/Make.defs,
-	  lib_psa_getstacksize.c, lib_psa_init.c, and lib_psa_setstacksize.c,
-	  sched/task/Make.defs, task_create.c, and task_spawn.c: Don't build
-	  task_create() or task_spawn() interfaces if there is an address
-	  environment (2014-9-14).
-	* arch/arm/src/armv7-a/arm_addrenv_ustack.c, include/nuttx/addrenv.h,
-	  arch.h, and other files: Rename everything associated with the dynamic
-	  process stack to ustack to make room in the name space for a kstack
-	  (2014-9-14).
-	* arch/arm/src/armv7-a/arm_addrenv_kstack.c, include/nuttx/addrenv.h,
-	  arch.h, and other files:  Add the initial implementation of the process
-	  kernel stack logic.  Not yet integrated into the main OS logic nor
-	  tested (2014-9-14).
-	* binfmt/binfmt_execsymtab.c and Makefile, sched/task/task_execv.c,
-	  task_posixspawn.c, and Make.defs, include/unistd.h,
-	  include/nuttx/binfmt/symtab.h, and libc/unistd/Make.defs: execv() is
-	  a basic system interface.  It should not be in libc/ but rather in
-	  sched/task.  Its symbol table helper logic also belongs in the kernel
-	  but belongs in binfmt/ with the other symbol table logic (2014-9-15).
-	* include/sys/syscall.h, syscall/syscall.csv, syscall_lookup.h, and
-	  syscall_stublookup.c:  execl() is not a system interface.  It belongs
-	  in libc and should not have a system call associated with it
-	  (2014-9-15).
-	* arch/arm/include/armv7-a/irq.h and src/armv7-a/arm_syscall.c: If we
-	  are configured to use a kernel stack while in SYSCALL handling, then
-	  we need to switch back to the user stack to deliver a signal (2014-9-15).
-	* arch/arm/src/armv6-m/up_svcall.c, armv7-a/arm_syscall.c, and
-	  armv7-m/up_svcall.c: Fix a typo in system call when fetching parameter
-	  from the stack:  regs[REG_PC]+4 is the address, not regs[REG_PC+4]
-	  (2014-9-15).
-	* sched/sched/sched_releasetcb.c: Don't release user stack in kernel
-	  build.  Already destroyed with all of the address environment
-	  (2014-9-15).
-	* arch/arm/src/armv6-m/up_signal_dispatch.c, src/armv7-a/arm_signal_dispatch.c,
-	  and arch/arm/src/armv7-m/up_signal_dispatch.c:  Move
-	  common/up_signal_dispatch.c to armv6-m, armv7-m, and armv7-a.  The
-	  armv7-a version needs to be different to handle the case where we
-	  are dispatch kernel mode signals when running under a user mode group
-	  (2014-9-16).
-	* arch/arm/src/armv7-a/arm_syscall.c: Correct stack handling if signal
-	  deliver to user processes (2014-9-16).
-	* arch/arm/src/armv7-a/arm_physpgaddr.c, pgalloc.h, sama5/sam_pgalloc.c,
-	  and sam_pgalloc.h: Move some share-able logic from sama5/sam_pgalloc.c
-	  to armv7-a/arm_physpgaddr.c (2014-9-16).
-	* arch/arm/src/sam34/sam_rtt.c: Only SAM4 family has RTTDIS bit in the
-	  MR register. SourceForge bug #33 from Fabien Comte (2014-9-17).
-	* arch/arm/src/stm32/stm32_can.c: At the end of the interrupt handler,
-	  the interrupts were being disabled, if all packets have been
-	  transferred when the interrupt handler was invoked. This is
-	  problematic, because the interrupt handler calls can_txdone of the
-	  upper half which can enqueue new packets to send. Removed the block
-	  altogether, because can_txdone calls can_xmit which disables
-	  interrupts if there are no new packets to send.  From  Daniel Lazlo
-	  Sitzer (2014-9-17).
-	* drivers/can.c: In can_txdone, waiters on the semaphore should be
-	  informed regardless of the return value of can_xmit. First it returns
-	  -EIO if there are no new packets, and second the information of the
-	  waiters is about the last transferred packet.  From  Daniel Lazlo
-	  Sitzer (2014-9-17).
-	* SAMA5D4-EK:  Add documentation/support for Rev E. board. Refresh NSH
-	  configuration.  Fix some build errors/warnings introduced with recent
-	  work with the knsh configuration (2014-9-17).
-	* arch/sim/Kconfig, src/up_spiflash.c, Makefile, up_initialize.c, and
-	  up_internal.h: Emulated SPI FLASH driver for the sim target from Ken
-	  Pettit (2014-9-19).
-	* configs/stm32f4discovery/include/board.h, netnsh/defconfig,
-	  src/Makefile, stm32_sdio.c, stm32_boot.c, stm32_nsh.c,
-	  stm32_bringup.c, and stm32f4discovery.h: STM32F4Discovery:  Add
-	  support for the microSD card slot on the STM32F4DIS-BB base board
-	  (2014-9-20).
-	* Change all occurrences of NxConsole to NxTerm (2014-9-20).
-	* include/sys/ipc.h, shm.h, mman.h, and types.h: Add shared memory
-	  definitions, types, prototypes (2014-9-22).
-	* fs/smartfs/smartfs_smart.c: SMART FS update from Ken Pettit
-	  (2014-9-22).
-	* mm/mm_gran/:  Move granule allocator and page allocator from mm/. to
-	  mm/mm_gran/. (2014-9-22).
-	* mm/kmm_heap/:  Move kernel heap allocator from mm/. to mm/kmm_heap/.
-	  (2014-9-22).
-	* mm/umm_heap/:  Move user heap allocator from mm/. to mm/umm_heap/.
-	  (2014-9-22).
-	* mm/mm_heap/:  Move common heap logic from mm/. to mm/mm_heap/.
-	  (2014-9-22).
-	* mm/shm/:  Create a home for forthcoming shared memory logic
-	  (2014-9-22).
-	* fs/procfs/fs_procfs.c: Fix some procfs breakage introduced by
-	  reorganizing some un-reorganizable data structures.  From Ken
-	  Pettit (2014-9-22).
-	* drivers/mtd/smart.c, fs/smartfs/smartfs.h, smartfs_procfs.c, and
-	  smartfs_utils.c, include/nuttx/fs/ioctl.h, and mtd/smart.h: Updated
-	  SMART FS procfs support.  From Ken Pettit
-	* configs/mikroe-stm32f4: Fix a few compile bugs and minor corrections
-	  to the mikroe-stm32f4 configuration source.  From Ken Pettit
-	  (2014-9-22).
-	* mm/Kconfig, shm/Make.defs, shmat.c, shmctl.c, shmdt.c, shmget.c, and
-	  Documentation/NuttxUserGuide.html: Add the documentation, build
-	  framework, and skeleton files for the shared memory feature (no logic
-	  yet provided) (2014-9-22).
-	* include/sys/syscall.h, syscall/syscall.csv, syscall_lookup.h, and
-	  syscall_stublookup.c: Add system calls for shared memory interfaces
-	  (2014-9-22).
-	* include/nuttx/shm.h, mm/shm/shm.h, and shm_initialize.c: Add shared
-	  memory initialization logic (2014-9-23).
-	* include/nuttx/arch.h, Documentation/NuttxPortingGuide.html, and
-	  NuttxUserGuide.html: Add platform-specific interface definitions
-	  needed to support the shared memory feature (2014-9-23).
-	* arch/arm/include/arch.h, src/armv7-a/addrenv.h, arm_addrenv.c,
-	  arm_addrenv_ustack.c, and arm_addrenv_utils.c: Add logic necessary
-	  to handle remapping of shared memory on context switches (2014-9-23).
-	* include/nuttx/gran.h, mm/mm_gran/mm_granrelease.c, and Make.defs: Add
-	  interfaces to support un-initializing a granule allocator (2014-9-23).
-	* arch/arm/src/armv7-a/arm_pgalloc.cm  sched/group/group_addrenv.c, and
-	  other files: Fix some inconsistent field name in struct task_group_s:
-	  addrenv should be tg_addrenv (2014-9-23).
-	* arch/arm/src/armv7-a/pgalloc.h: Extend virtual/physical address
-	  conversions to include addresses in shared memory (2014-9-23).
-	* include/nuttx/shm.h, sched.h, mm/shm/shm_initialize.c,
-	  binfmt/binfmt_execmodule.c, sched/group/group_leave.c: Add support
-	  for a per-process virtual page allocator.  This is a new member of
-	  the task_group_s structure.  The allocator must be initialized when a
-	  new user process is started and uninitialize when the process group
-	  is finally destroyed.  It is used by shmat() and shmdt() to pick the
-	  virtual address onto which to map the shared physical memory
-	  (2014-9-23).
-	* mm/shm/shmat.c and shmdt.c: Completes the implementation of the core
-	  shared memory logic:  shmget(), shmctl(), shmat(), and shmdt().  This
-	  is still some unfinished platform-specific code that needs to be done
-	  before we can begin testing (2014-9-23).
-	* include/nuttx/mm:  Move mm.h, gran.h, and shm.h from include/nuttx to
-	  include/nuttx/mm (2014-9-24).
-	* arch/arm/src/stm32/stm32_can.c: STM32 CAN correction suggested by Max
-	  Holtzberg (2014-9-24).
-	* arch/arm/src/armv7-a/addrenv.h, arm_addrenv_shm.c,
-	  arm_addrenv_utils.c, and pgalloc.h: This completes the implementation
-	  of shared memory support for the Cortex-A platforms (2014-9-24).
-	* fs/fs_poll.c: Fix unnecessary delays and timing jitter in the
-	  implementation of poll(): No delay if timeout is zero; If timeout is
-	  greater than zero, first check if events are already pending events
-	  before starting the delay.  From Johannes Hampel (2014-9-25).
-	* drivers/mtd/at45db.c: In at45db_bwrite , the buffer is not increased
-	  when writing more than 1 page.  Sourceforge bug #34 (2014-9-25).
-	* crypto/cryptodev.c: Path segments reversed in include file path.
-	  Noted by Brennan Ashton (2014-9-25).
-	* drivers/mtd/mtd_rwbuffer.c:  The MTD Read-ahead/Write buffer layer
-	  appears to be functional (2014-9-25).
-	* libc/stdio/lib_libdtoa.c: Change to lib_dtoa() to fix precision error
-	  from trailing zeroes.  From Bob Doiron (2014-9-26)
-	* fs/fs_poll.c:  Re-implemented poll() delay using sem_timedwait()
-	  (2014-9-26).
-
-7.6 2014-11-26 Gregory Nutt <gnutt@nuttx.org>
-
-	* fs/fs.h and other files:  Rename fs/fs_internal.h to fs/fs.h (2014-9-28).
-	* include/nuttx/semaphore.h and fs/fs.h:  Add data structures that will
-	  allow us to move name semaphore support out of the OS and into the
-	  VFS (not complete) (2014-9-28).
-	* fs/inode: Move inode and VFS utils from fs/. to fs/inode/. (2014-9-28).
-	* fs/driver: Move driver logic from fs/. to fs/driver/. (2014-9-28).
-	* fs/dirent: Move directory operations from fs/. to fs/dirent/. (2014-9-23).
-	* fs/mount: Move mount-related files from fs/. to fs/mount/. (2014-9-23).
-	* fs/vfs: Move renaming files in fs/. to fs/vfs/. (Don't all belong there)
-	  (2014-9-23).
-	* fs/semaphore: Create a build structure that will (eventually) support
-	  using the VFS to manage named semaphores (2014-9-23).
-	* configs/stm32f4discovery/include/board.h: STM32F4-Discovery: Fix some
-	  backward conditional compilation (2104-9-29).
-	* nuttx/sched/init/os_start.c, semaphore/Make.defs, sem_initialize.c,
-	  and semaphore.h: Semaphore initialization is now only required if
-	  priority inheritance is enabled (2014-9-29).
-	* fs/Makefile and mqueue/: Add build support for messages queues as part
-	  of the VFS (only build logic, no C files yet) (2014-9-29).
-	* fs/inode/inode.h and fs/driver/driver.h:  Move fs/fs.h to fs/inode/inode.h
-	  and some to fs/driver/driver.h (2014-9-29).
-	* sched/task/task_vfork.c: Fix vfork().  Now that arguments are kept on
-	  the stack, the way that arguments are passed from parent to child in
-	  vfork() must change.  This bug has always been present, but was not
-	  visible with the old strdup() way of passing arguments (2014-9-29).
-	* arch/arm/src/common/up_vfork.c: Another vfork() problem: If we get to
-	  vfork() via system call, then we need to clone some system call
-	  information so that the return form the cloned system call works
-	  correctly (2014-9-29).
-	* fs/mqueue: Move mq_open(), mq_close(), and mq_unlink() logic from
-	  sched/mqueue to fs/mqueue.  Convert the logic so that it uses the VFS to
-	  managed the message queue namespace (instead of custom logic).  By
-	  default, now message queues can be seen in /var/mqueue (2014-9-29).
-	* arch/sim/src/up_simuart.c, up_uartwait.c:  Removed old, strange
-	  up_stdio.c and implemented a simulated UART driver to provide the
-	  console input.  Starts a separate, Linux domain pthread to read
-	  the console input in raw mode and provides the incoming data to
-	  NuttX via standard NuttX domain IPCs (2014-9-30).
-	* arch/sim/src/up_setjmp32.S, up_setjmp64.S, Kconfig, Makefile,
-	  up_initialstate.c, up_internal.h, up_stackframe.c, and include/irq.h:
-	  Add support for 64-bit longjmp/setjmp in simulator platform.  This
-	  will permit operation of the simulation natively on a 64-bit platform
-	  (2014-10-2).
-	* include/fcntl.h: Implement create() as a macro (2014-10-4).
-	* fs/vfs/Make.defs,  fs_pread.c fs_pwrite.c, and include/unistd.h: Add
-	  pread() and pwrite() (2014-10-4).
-	* include/sys/syscall.h syscall/syscall.csv, syscall_lookup.h, and
-	  syscall_stublookup.c: Add pread() and pwrite() system calls
-	  (2014-10-4).
-	* include/aio.h:  Add aio.h header file (2014-10-4).
-	* libc/aio/lio_listio.c and Make.defs: Add empty skeleton file where
-	  lio_listio() will eventually be implemented (2014-10-4).
-	* libc/Kconfig, aio/aio_read.c, aio_write.c, aio_return.c, aio_error.c
-	  aio.h, and Make.defs: Initial implementation of aio_read(),
-	  aio_write(), aio_return(), and aio_error() (2014-10-4).
-	* include/signal.h and sched/Kconfig:  Add definitions for SIGPOLL
-	  (2014-9-5).
-	* libc/aio/aio_signal.c, Make.defs, and aio.h: Move AIO signal logic
-	  to a common location in aio_signal.c.  Also fix several typos
-	  (2014-9-5).
-	* libc/aio/aio_suspend.c, aio_cancel.c, aio_fsync.c, lio_listio.c and
-	  Make.defs:  Initial implementation of aio_suspend(), aio_cancel(),
-	  lio_listio.c, and aio_fsync.c.  This completes this implementation
-	  of the asynchronous I/O interfaces but there are still untested
-	  (2014-9-5).
-	* fs/aio/Make.defs, aio.h, aio_cancel.c, aio_fsync.c, aio_read.c,
-	  aio_signal.c, and aio_write.c: Move all file operations from libc/aio
-	  to fs/aio.  These will need to be kernel routines in order to
-	  handler issues with using file descriptors on worker thread
-	  (2014-10-5).
-	* fs/aio/aio.h, Kconfig, aio_initialize.c, aioc_contain.c, Make.defs,
-	  and include/aio.h: Add a AIO control container to increase the
-	  payload with OS internal stuff (2014-10-6).
-	* fs/aio/aio_cancel.c, aio_fsync.c, aio_read.c, aio_signal.c, and
-	  aio_write.c: Modify logic to use AIO control block container
-	  (2014-10-6).
-	* fs/fs_initialize.c, Makefile, fs/inode/fs_inode.c, and inode.h:
-	  Modify FS initialization logic to handle AIO container
-	  initialization (2014-10-6).
-	* Too many files to list:  Major structuring of file system functions
-	  to better support asynchronous I/O.  Repository should not be
-	  trusted until I have a chance to verify everything (2014-10-6).
-	* include/nuttx/mm/mm.h: Fix a place in the memory manager where it
-	  explicitly assumed that the size of a pointer is 4 bytes.  That is OK
-	  if the actual size is smaller but makes the heap unstable when used
-	  with the x86_64 host simulation (2014-10-6).
-	* sched/wqueue, include/nuttx/wqueue.h,  and libc/Kconfig sched/Makefile:
-	  Add support for priority inheritance on the low priority worker queue
-	  (2014-10-7).
-	* sched/Makefile and sched/*/Make.defs: Simplify how C source files are
-	  selected in the build (2014-10-7).
-	* fs/aio/aio_queue.c, Make.defs, aio.h, aio_fsync.c, aio_read.c, and
-	  aio_write.c: The asynch I/O implementation now satisfies POSIX
-	  priority requirements; it uses the new low priority worker thread
-	  interfaces to adjust the priority of the worker thread according to
-	  the priority of the client thread (2014-10-7).
-	* arch/arm/src/stm32/chip/stm32_otghs.hstm32_otghs.c/h and
-	  chip/stm32_otghs.h: Add files that implement true high speed support
-	  for the STM32 OTGHS peripheral.  From Brennan Ashton (2014-10-7).
-	* arch/arm/src/stm32/ (several files):  Integrates OTGHS support into
-	  the STM32; Eliminates the older OTGHS in FS mode logic.  From Brennan
-	  Ashton (2014-10-7).
-	* arch/arm/src/stm32/Kconfig, stm32_otgfsdev.c, chip/stm32f40xxx_pinmap.h,
-	  configs/stm32f429i-disco/ (several files): Remove non-functional
-	  vestiges of OTGHS in FS mode (including OTGFS2); try to convert the
-	  stm32f429i-disco configuration to use OTGHS instead of OTFHS in F
-	  mode (OTGFS2).  But I don't have the boards and can't test (2014-10-7).
-	* include/syslog.h, debug.h, libc/libc.csv, misc/lib_dbg.c,
-	  lib_dumpbuffer.c, stdio/lib_lowsyslog.c, lib_printf.c, lib_syslog.c,
-	  and fs/driver/fs_syslog.c: Make standard syslog and vsyslog POSIX
-	  compliant (also modify non-standard syslog functions for
-	  compatibility).  This will break a lot of things until ALL usage of
-	  syslog is updated to use the modified interfaces (2014-10-8).
-	* drivers/: Correct everything under nuttx/drivers, nuttx/arch, nuttx/net,
-	  nuttx/binfmt, and nuttx/configs to use the corrected syslog interfaces
-	  (2014-10-8).
-	* libc/syslog and fs/syslog: Move syslog logic from libc/misc and
-	  libc/stdio to libc/syslog and fs/syslog.  Also move some syslog logic
-	  from fs/driver to fs/syslog (2014-10-8).
-	* fs/syslog/fs_syslogmask.c:  Implement syslogmask() (2014-10-8).
-	* include/sys/syscall.h, syscall/syscall.csv, syscall_lookup.h, and
-	  syscall_stublookup.c:  Add syslog system calls (2014-10-8).
-	* fs/Kconfig, syslog/fs_syslogenable, and include/syslog.h:  Remove
-	  non-standard, conditional syslog_enable(), instead only the
-	  required, standard setlogmask() (2014-10-9).
-	* arch/arm/src/stm32/chip/stm32_exti.h: Correct STM32 RTC EXTI bit
-	  definition.  From Lazlo (2014-10-9).
-	* include/syscall.h, syscall/, and libc/: Remove syslog interfaces
-	  from the set of system calls (2014-10-9).
-	* libc/syslog: Move syslog back out of the kernel into the C library
-	  (2014-10-9).
-	* arch/mips/src/pic32mx/pic32mx-devcfg.h: For PIC32MX7, DEVCFG0 bit
-	  2 must be set.  Writing bit 2 as zero can brick the CPU on some
-	  versions.  From Cris Kvist (2014-10-9).
-	* sched/wqueue/, libc/wqueue, and include/nuttx/wqeueue.h:  Separate
-	  kernel- and user-mode work queue logic. Decouple work queue data
-	  structures.  This is part of the preparation to support multiple
-	  low-priority worker threads (2014-10-10).
-	* include/nuttx/wqueue.h, libc/wqueue/Make.defs, work_usrthread.c,
-	  work_usrstart.c sched/init/os_bringup.c wqueue/kwork_hpthread.c,
-	  kwork_lpthread.c, and wqueue.h: Modularize starting of worker
-	  threads to better isolate individual initialization characteristics
-	  (2014-10-10).
-	* arch/arm/src/ stm32_iwdg.c, stm32_wwdg.c, and chip/stm32_dbgmcu.h:
-	  Fix watchdog stop bit usage.  From Lazlo (2014-10-10).
-	* sched/wqueue/, libc/wqueue, and include/nuttx/wqueue.h:  Add support
-	  for multiple low-priority worker threads.  This is a necessary
-	  piece of the support for asynchronous I/O (2014-10-10).
-	* sched/wqueue/work_inherit.c:  Add logic for priority inheritance with
-	  multiple worker threads.  How should this work?  Tentatively, the all
-	  get reprioritized together.  It would be best to just reprioritize the
-	  single thread doing the high priority work, but we don't know which
-	  that will be in advance (2014-10-10).
-	* fs/aio/ and include/aio.h:  Add support for socket-based transfers
-	  (2014-10-11).
-	* arch/arm/include/stm32/chip.h, /src/stm32/Kconfig, and
-	  stm32_allocateheap.c: Support for the STM32 F411RE from Serg Podtynnyi
-	  (2014-10-14).
-	* configs/Kconfig, README.txt, and nucleo-f401re:  Extend this board
-	  configuration to also support the Nucleo-F411RE.  From Serg Podtynnyi
-	  (2014-10-14).
-	* tools/Config.mk:  Add a PRELINK macro to Config.mk.  From Kriegleder
-	  (2014-10-17).
-	* arch/arm/src/efm32 and arch/arm/include/efm32: Add a basic port for
-	  the SiLabs EFM32 family.  Includes many files contributed by Pierre-noel
-	  Bouteville (2104-10-20).
-	* configs/efm32-gxxx-stk:  Add board support for the EFM32 Gecko Starter
-	  Kit (2014-10-20).
-	* configs/olimex-efm32g880f128-stk: Add board support for the Olimex
-	  EFM32G8809128 STK (2014-10-20).
-	* drivers/lcd/Kconfig, ili9341.c, Make.defs, and include/nuttx/lcd/ili9341.h:
-	  Add support for a generic ILI9341 driver.  From Marco Krahl (2014-10-20).
-	* configs/stm32f429i-disco/Kconfig, src/ and lcd/:  Add support for the
-	  STM32F429i Discovery's LCD.  From Marco Krahl (2014-10-20).
-	* arch/arm/src/lpc43xx/lpc43_gpioint.c, .h, lpc43_irq.c, and
-	  chip/lpc43_gpio.h: Fixes to allow compile of lpc43_gpioint.c.  It
-	  likely doesn't work.  From Brandon Warhurst (2014-10-21).
-	* arch/arm/src/stm32/chip/stm32f103r_pinmap.h: Add ADC pinmap
-	  definitions for the STM32 F103R from Martin Lederhilger  (2014-10-21).
-	* arch/arm/src/armv7-m/up_itm.c and itm.h: Add CMSIS ITM header file and
-	  library.  From Pierre-noel Bouteville (2104-10-21).
-	* arch/arm/src/armv7-m/dwt.h and tpi.h: Add CMSIS DWT and TPI header files.
-	  From Pierre-noel Bouteville (2104-10-21).
-	* arch/arm/src/armv7-m/arm_item_syslog.c, itm_syslog.h, and Kconfig: Add
-	  ARMv7 support to use ITM for SYSLOG debug output. Includes logic from
-	  Pierre-noel Bouteville (2014-10-22).
-	* arch/arm/src/efm32/efm32_clockconfig.c, efm32_start.c, and Make.defs:
-	  Add logic to initialize and use ITM for syslog. Includes logic from
-	  Pierre-noel Bouteville (2014-10-22).
-	* sched/sched/sched_timerexpiration.c and include/nuttx/arch.h:  Fixes
-	  to tickless operation code, especially in alarm mode.  From Brandon
-	  Warhurst (2014-10-23).
-	* nuttx/arch/arm/src/lpc43xx/lpc43_rit.c, lpc43_rit.h, and related
-	  files: Add support for tickless operation using the NXP LPC43xx.  From
-	  Brandon Warhurst (2014-10-23).
-	* arch/arm/src/efm32/efm32_gpio.c and efm32_gpioirq.c: EFM32 port and
-	  pin decoding backward in every case.  From  Pierre-Noel Bouteville
-	  (2014-10-23).
-	* arch/arm/src/armv7-m/up_itm_syslog.c:  Correct file naming and fix
-	  compilation errors in up_itm_syslog.c.  From  Pierre-Noel Bouteville
-	  (2014-10-23).
-	* configs/sam4e-ek/src/sam_ethernet.c (and other files):SAM4E-EK: Add
-	  support for PHY interrupt (2014-10-24).
-	* include/wchar.h:  Add a mostly bogus wchar.h header file.  This file
-	  is mostly bogus because none of the wide character operations are
-	  currently supported in the Nuttx C library (2014-10-27).
-	* include/termios.h, libc/termios/lib_isatty.c, and Make.defs: Add
-	  isatty() function. From  Alan Carvalho de Assis (2014-10-27).
-	* arch/arm/include/efm32, src/efm32, and configs/efm32-gxxx-stk:
-	  The EFM32 Gecko Starter Kit port is now functional.  At least
-	  NSH is running over LEUART0 on the board (2014-10-29).
-	* arch/arm/src/sam34/sam_serial.c and Kconfig:  Add support for SAM3/4
-	  basic TERMIOS and flow control.  There are issues with IFLOW control:
-	  PDC or DMAC support is required (2014-10-29).
-	* configs/sam4e-ek/src/sam4e-ek.h: Fix an error in a USART1 pin number
-	  (2014-10-29).
-	* configs/efm32gg-stk3700:  Board support for the SiLabs EFM32GG
-	  Giant Gecko Starter kit.  Current with basic NSH configuration only.
-	  Testing is on hold until I receive hardware (2014-11-03).
-	* libc/Kconfig: Move CONFIG_NSH_TMPDIR to CONFIG_LIBC_TMPDIR (2014-11-05).
-	* libc/stdlib/lib_mkstemp.c, lib_mktemp.c, Make.defs and include/stdlib.h:
-	  Add mktemp() and mkstemp() (2014-11-05).
-	* libc/stdio/lib_tempnam.c, lib_tmpnam.c, Kconfig, Make.defs and
-	  include/stdio.h: Add tmpnam() and tempnam() (2014-11-05).
-	* drivers/rwbuffer.c: Fix typo that can cause compiler error (2014-11-05).
-	* drivers/mtd/m25px.c: Extend MTD support to M25P16. From Sébastien
-	  Lorquet (2014-11-07).
-	* arch/arm/src/stm32/Kconfig, chip.h, and include/stm32/chip.h: Support
-	  for the STM32F103RG.  From Murilo Ponte (2014-11-10).
-	* configs/stm32f100rc_generic:  Removed this generic board configuration.
-	  I have decided to stop support of generic board configurations.  Generic
-	  board configurations do not provide support for any specific hardware
-	  but can be useful only if there are not other examples for the setup
-	  for a particular architecture. Not the case here (2014-11-10).
-	* include/nuttx/vt100.h: Add foreground and background color commands
-	  (2014-11-10).
-	* sched/wdog/wd_create.c: Fix an important bug in the watchdog creation
-	  logic (2014-11-10).
-	* include/unistd.h, libc/unistd/lib_access.c and Make.defs: From Lorenz
-	  Meier: The implementation of access() as vararg macro has the issue that
-	  any function call with the same name (even in a C++ class) will match
-	  with it and result in a compile error. I have replaced it with a small
-	  function, and tried to have decent documentation as well. This resolves
-	  the compile issue, and shouldn’t have negative side effects for users
-	  of the function (2014-11-11).
-	* mm/mm_gran/mm_granrelease.c:  If the INTR granule allocator mode is
-	  enabled, there is no semaphore to destroy.  From Lorenz Meier (2014-11-12).
-	* fs/nxffs/nxffs_dump.c: Fix problems with redefinitions of fdb macro.
-	  With the fix to the syslog prototype, a LOG priority must now be the
-	  first parameter.  Fixed by replacing all occurrences of fdbg with
-	  syslog(LOG_DEBUG, and eliminating the macro redefinitions.  Noted by
-	  Sebastien Lorquet (2014-11-12).
-	* arch/arm/src/common/up_internal.h: Add protection from C++ name
-	  mangling in the ARM up_internal.h.  From Lorenz Meier (2014-11-12).
-	* include/nuttx/compiler.h:  Defines inline functions as not
-	  instrumented - this is relevant for anyone using instrumentation.  From
-	  Lorenz Meier (2014-11-12).
-	* libc/string/lib_strncpy.c:  The definition of strncpy() is that empty
-	  space should be zero-filled, the patch adds the zero filling (I didn’t
-	  know this, see e.g. the POSIX spec here:
-	  http://pubs.opengroup.org/onlinepubs/7908799/xsh/strncpy.html). From
-	  Lorenz Meier (2014-11-12).
-	* arch/arm/include/limits.h:  Remove the definition of INT_FAST32_MIN
-	  which is already defined in stdint.h (the correct location).  From
-	  Lorenz Meier (2014-11-12).
-	* arch/arm/src/efm32/efm32_clockconfig.c, configs/efm32gg-stk3700/README.txt
-	  and include/board.h:  Fixes to get the EFM32GG-STK3700 basic NSH
-	  configuration running.  It works! (2014-11-12).
-	* drivers/bch/bchdev_driver.c: Add support for seeking in BCH.  From
-	  Sébastien Lorquet. (2014-11-13).
-	* sched/Kconfigs and configs/*/*/defconfig:  Remove CONFIG_MAX_TASK_ARGS
-	  (2014-11-13).
-	* binfmt/: Remove use of CONFIG_MAX_TASK_ARGS in exec() and unload_module()
-	  (2014-11-13).
-	* libc/unistd:  Remove use of CONFIG_MAX_TASK_ARGS in execl() (2014-11-13).
-	* sched/: Remove some misc. usage of CONFIG_MAX_TASK_ARGS in task_start(),
-	  task_setup(), and vfork() (2014-11-13).
-	* arch/arm/src/stm32/chip/stm32_otgfs.h: Correct a typo in the STM32 OTGFS
-	  register bit definitions (2014-11-13).
-	* drivers/lcd/st7565.c/.h and include/nuttx/lcd/st7565.h: Add driver for
-	  ST7565 that works with NHD‐C12864KGZ display.  From Pierre-noel
-	  Bouteville (2014-11-13).
-	* net/route/net_router.c:  I don't think that the net_route function has
-	  ever worked correctly.  The source ip was updated in the match struct
-	  instead of the route ip.  From Brennan Ashton (2014-11-14).
-	* net/Kconfig arp/Make.defs, arp_send.c, and drivers/net/slip.c: ARP:
-	  Add support for the case where there are multiple networks:  One being
-	  Ethernet and the other not.  Suggested by Brennan Ashton (2014-11-14).
-	* net/Kconfig, netdev/netdev_register.c, arp/arp_send.c,
-	  include/nuttx/net/net.h, netdev.h and several network drivers in arch/
-	  and drivers/: Add a parameter to netdev_register() to indicate the
-	  link protocol supported by the driver.  Use this value to replace some
-	  logic committed yesterday (2014-11-15).
-	* configs/stm32f4discovery/netnsh/defconfig:  Needs to set MAC address
-	  (2014-11-15).
-	* arch/ and drivers/: Remove use of NET_LL_HDRLEN from Ethernet drivers.
-	  Use ETH_HDRLEN instead (2014-11-15).
-	* net/arp/: Remove use of NET_LL_HDRLEN from net/arp logic.  Use
-	  ETH_HDRLEN instead (2014-11-15).
-	* net/ and include/nuttx/net:  All network logic will now handle
-	  variable length link layer protocol headers within incoming packets.
-	  This permits use of multiple network interfaces with differing data
-	  links.  For example, ETHERNET + SLIP (2014-11-15).
-	* arch/arm/src/sam34/sam4s_periphclks.h:  Add missing SPI0 clock
-	  configuration macro for the SAM4S.  From spasbyspas (2014-11-16).
-	* arch/arm/src/efm32/efm32_lowputc.c: EFM32 USART setup: Computation of
-	  BAUD includes shift; Eliminate additional shift.  From  Pierre-noel
-	  Bouteville (2014-11-16).
-	* net/, include/, drivers/, arch/, various files:  Rename
-	  CONFIG_NET_BUFSIZE to CONFIG_NET_ETH_MTU; Add CONFIG_NET_SLIP_MTU.
-	  Add data structures and logic to handle different MTUs when both
-	  Ethernet and SLIP are enabled (2014-11-16).
-	* net/, include/, various files:  Rename CONFIG_NET_RECEIVE_WINDOW to
-	  CONFIG_NET_ETH_TCP_RECVWNDO and CONFIG_NET_SLIP_TCP_RECVWNDO.  Add
-	  data structures and logic to handler different TCP receive windows
-	  when both Ethernet and SLIP are enabled (2014-11-16).
-	* configs/sama5d4-ek/bridge: Add a simple test for the dual EMACs on
-	  the SAMA5D4 (2014-11-17).
-	* arch/arm/src/sama5/sam_emacb.c:  Fix several typos that will prevent
-	  EMAC1 from initializing properly (2014-11-17).
-	* include/nuttx/net/ip.h and tcp.h, net/icmp/icmp_send.c and
-	  igmp/igmp_send.c: Move IP header flags from tcp.h to ip.h and rename
-	  IP_FLAGS vs TCPFLAGS.  The problem fixed here is that there IP flags
-	  were not available when TCP was disabled.  The IP flags are used in
-	  ICMP and IGMP (2014-11-17).
-	* sched/clock/clock_abstime2ticks.c: Calling mq_timedreceived() with
-	  immediate timeout was getting stuck and not timing out. Immediate
-	  timeout is achieved by setting absolute timeout value to past time,
-	  for example abstime={ .tv_sec=0, .tv_nsec=0 }. However absolute
-	  time was converted to relative time using unsigned integer arithmetic
-	  and resulted large ticks count by clock_abstime2ticks, instead of
-	  expected negative ticks value.  Change corrects clock_abstime2ticks()
-	  to return negative ticks, if absolute time is in the past.  From
-	  Jussi Kivilinna (2014-11-19).
-	* fs/vfs/fs_poll.c: poll() was not waking up from signals (for example
-	  mq_notify() events).  From Jussi Kivilinna (2014-11-19).
-	* arch/arm/src/stm32/stm32_otghs.c, Make.defs,
-	  configs/stm32f429i-disco/src/stm32_usb.c and Makefile: STM32 F4 OTGHS
-	  device controller driver from Brennan Ashton (2014-11-20).
-	* configs/sama5d3-xplained/bridge: Add a simple test for the EMAC
-	  and GMAC on the SAMA5D3 working together (2014-11-20).
-	* libnx/nxtk/nxtk_drawframe.c: Remove warnings when CONFIG_NXTK_BORDERWIDTH
-	  is set to zero.  From Pierre-Noel Bouteville (2014-11-20).
-	* fs/vfs/fs_poll.c: Add proper handling for sem_timedwait errnos.
-	  From Jussi Kivilinna (2014-11-21).
-	* net/udp/udp_conn.c and udp.h:  Extensions to UDP "connection" structure
-	  for the case of multiple networks.  In this case, assigned port numbers
-	  only have to be unique with respect to the IP address.  So, for
-	  example, you could have multiple port 80's, one on each network
-	  (2014-11-21).
-	* net/tcp/tcp_conn.c and tcp.h: Make tcp_listener static scope; it is
-	  not used outside of tcp_conn.c (2014-11-22).
-	* net/udp/tcp_conn.c and tcp.h:  Extensions to TCP connection structure
-	  for the case of multiple networks.  See the description of the similar
-	  change for UDP above (2014-11-22).
-	* net/route/net_router.c:  Refuse to perform routing table lookups for
-	  the Broadcast IP address.  From Brennan Ashton.
-	* net/netdev/netdev_findbyaddr.c and netdev:  Add logic to netdev_findbyaddr()
-	  to return the correct network device for the case where a broadcast
-	  address is used.  This change caused trivial ripples through other
-	  files because additional parameters are required for netdev_findbyaddr()
-	  when CONFIG_NET_MULTINIC.  Those other file include net/netdev/netdev_rxnotify.c,
-	  netdev_txnotify.c which, in turn, for changes to arp/arp_send.c,
-	  icmp/icmp_ping.c, socket/net_sendfile.c, recvfrom.c, sendto.c,
-	  tcp/tcp_send_buffered.c, and tcp_send_unbuffered.c (2014-11-23).
-	* arch/arm/src/kl/chip/kl_i2c.h:  I2C header file for the Freescale KL
-	  family.  From Alan Carvalho de Assis (2014-11-23).
-	* include/nuttx/fs/fs.h: Fix typo in conditional compilation.  From
-	  Alan Carvalho de Assis (2014-11-23).
-
-7.7 2015-01-26 Gregory Nutt <gnutt@nuttx.org>
-
-	* nuttx/drivers/eeprom and include/nuttx/eeprom/: Add support for generic
-	  EEPROM access via a character driver.  Add also the EEPROM driver itself.
-	  From Sébastien Lorquet (2014-11-26).
-	* libnx/nxfonts/nxfonts_pixel-lcd-machine.h and nxfonts_pixel-unicode.h,
-	  include/nuttx/nx/nxfonts.h, graphpics/Kconfig, and build-related files
-	  in libnx/nxfonts: Two new fonts from Pierre-noel Bouteville (2014-11-26).
-	* configs/lpc4357-evb, arch/arm/src/pc43xx/chip/, configs/Kconfig, and
-	  and other related files:  A port of NuttX to the LPC4357-EVB from
-	  Toby Duckworth.  This port is a leverage of the LPC3330-Xplorer port
-	  and still have a some misinformation from that port that needs to be
-	  updated for the LPC4357-EVB (2014-11-26).
-	* arch/arm/include/stm32/chip.h, src/stm32/Kconfig, chip.h, and
-	  chip/stm32f102_pinmap.h:  Enable support for the STM32 F102.  From
-	  https://github.com/PX4/NuttX/pull/28.diff (2014-11-27).
-	* drivers/loop.c:  Loop device should return -EINTR is interrupt by a
-	  signal (2014-11-27).
-	* drivers/input/djoystick.c and include/nuttx/input/djoystick.h.  Also
-	  drivers/input/Kconfig and Make.defs, and include/nuttx/fs/ioctl.h: Add
-	  an interface definition and upper half driver for a discrete joystick
-	  device (2014-11-27).
-	* arch/arm/src/efm32/Kconfig and efm32_serial.c: Add support for serial
-	  termios TCGET and TCSET.  For the moment, only set/get speed is
-	  implemented.  From Pierre-noel Bouteville (2014-11-27).
-	* drivers/wireless/ and include/nuttx/wireless/cc3000.h:  A set of 11
-	  patches correcting issues with the CC3000 networking.  All from Jussi
-	  Kivilinna (2014-11-28).  Among these:
-	  03/11: CC3000 driver was getting stuck at recv() when remote host
-	    closed connection and application tried to read data from remotely
-	    shutdown socket. This patch adds proper handling for remotely closed
-	    socket event.
-	  07/11: Socket state initialization was done in 'register', while it
-	    should be initialized in 'open' and deinitialized in 'close'. Old
-	    way caused problems when device is closed, power-cycled and then
-	    reopened as old socket state was left enabled.
-	  08/11: Select thread was getting stuck after 'close, power-cycle,
-	    reopen', since selectsem was not properly setup and cleaned up.
-	  09/11: 'maxFD' was not properly reset in select worker and not checked
-	    for before calling cc3000_select().
-	  10/11: After wlan_stop()/cc3000_close(), irqsem was left with count
-	    '-1'. Therefore on next wlan_start()/cc3000_open(), initial value
-	    for irqsem was wrong. Additional repeated wlan_start()/wlan_stop()
-	    decreased irqsem value further. Obviously this causes driver not to
-	    function correctly and freeze. Patch moves initialization and
-	    destruction of waitsem, irqsem and readysem to
-	    cc3000_open/cc3000_close.
-	* include/cxx/cctype: Undefine macros defined ctype.h so that builtin
-	  C++ implementations will be used instead.  From Lorenz Meier
-	  (2014-11-28).
-	* configs/stm3210e-eval/src/stm32_djoystick.c:  Add a discrete Joystick
-	  supportfor the STM3210E-EVAL (2014-11-28).
-	* drivers/input/djoystick.c include/nuttx/input/djoystick.h: Add a new
-	  ioctl to get the supported joystick discrete signals (2014-11-28).
-	* drivers/input/ajoystick.c and include/nuttx/input/ajoystick.h.  Also
-	  drivers/input/Kconfig and Make.defs, and include/nuttx/fs/ioctl.h: Add
-	  an interface definition and upper half driver for an analog joystick
-	  device. Initial check-in is only a little more of a clone of the
-	  discrete joystick driver and is as-of-yet untested (2014-11-27).
-	* libc/Kconfig, misc/Make.defs, misc/lib_ioctl.c, fs/vfs/fs_ioctl.c,
-	  include/nuttx/fs/fs.h, include/sys/ioctl.h, syscall.h, and several
-	  files in syscall/: Add support for a variadic ioctl() function.  The
-	  ioctl() interface is a non-standard, Unix interface.  NuttX has always
-	  used the older, three-parameter version.  Most contemporary systems
-	  now, however, use a variadic form of the ioctl() function.  Added an
-	  option to insert a shim layer to adapt the three-parameter ioctl() to
-	  use the variadic interface form.  Internally, the ioctl handling is
-	  the same three-parameter logic.  The only real complexity to the shim
-	  is in how the system calls must be handled (2014-11-29).
-	* arch/arm/src/stm32/stm32_i2c.c: Port Tridge's I2C noise resilience
-	  logic from the PX4 repository (2014-11-29).
-	* arch/arm/src/stm32/chip/stm32l15xxx_pinmap.h:  Fix a typo in the
-	  MCO pin definition.  From Jussi Kivilinna (2014-12-02).
-	* arch/arm/src/stm32/stm32_rcc.h:  Add missing MCO configuration for
-	  the STM32L1xxx.  From Jussi Kivilinna (2014-12-02).
-	* configs/sama5d3-xplained/src/sam_ajoystick.c:  Add analog Joystick
-	  shield support for the SAMA5D3 Xplained board (2014-12-3).
-	* configs/ucleo-f4x1re/src/sam_ajoystick.c and sam_adc.c:  Add
-	  analog Joystick shield support for the Nucleo F4x1RE boards.  There
-	  are still some ADC issues to be worke through as of the initial
-	  commit (2014-12-3).
-	* /drivers/eeprom/spi_xx25xx.c and /include/nuttx/eeprom/spi_xx25xx.h:
-	  Add support for ST Micro EEPROM device geometries.  From Sebastien
-	  Lorquet (2014-12-5).
-	* sched/mqueue: msg type should be char * not void * in mq_send,
-	  mq_timedsend, mq_receive, and mq_timedreceive.  Noted by  Pierre-Noel
-	  Bouteville (2014-12-05).
-	* fs/mqueue/mq_open.c and sched/mqueue/mq_msgqalloc.c: In message queue
-	  creation return ENOSPC error if size exceeds the configured size of
-	  pre-allocated messages; Use ENOSPC vs ENOMEM per OpenGroup.org.  From
-	  Pierre-Noel Bouteville (2014-12-6).
-	* Add sys/custom_file.h.  Used when CUSTOM_FILE_IO is define and avoids
-	  re-definition errors about the FILE define.  From Thomas Gruber via
-	  the PX4 repository (2014-12-06).
-	* tools/bfd-converter.c and mkdeps.c:  Eliminate a warnging about
-	  redefined strtok_r on some platforms (2014-12-8).
-	* arch/sim/Kconfig:  Allow building the simulated framebuffer driver
-	  even if NX is not enabled (12014-12-8).
-	* configs/sim/traveler and README.txt:  Add a configuration build and test
-	  the Traveler first person game using the simulator (2014-12-8).
-	* arch/arm/src/stm32/chip/stm32f20xxx_pinmap.h and stm32f40xxx_pinmap.h:
-	  Set the GPIO_SPEED_50MHz on all F2 and F4 SPI pin configurations.
-	  This is based on an F411 SPI1 errata but the fixed is generalized to
-	  all SPI and all F2 and F4 (let me know if this introduces any other
-	  issues).  Discovered and fixed by Sebastien Lorquet after much
-	  consternation (2014-12-8).
-	* libc/stdio/lib_avsprintf.c: avsprintf():  Fix a bug in usage of
-	  va_list on x86.  On x86, va_list is a pointer to a single copy on the
-	  stack.  avsprintf() calls lib_vsprintf() twice and so traverses the
-	  va_list twice using va_start.  va_start modifies that single copy on
-	  the stack so that the second call to lib_vsprintf() fails.  This appears
-	  to be an issue with x86 only so far (2014-12-8).
-	* stdint.h:  Don't use hex values to specify minimum values of fixed
-	  width, signed values.  Hex values are inherently unsigned and not
-	  usable for this purpose in all contexts (2014-12-8).
-	* arch/arm/src/tiva/tiva_i2c.c, tiva_i2c.h, Kconfig, and Make.defs: Add
-	  build framework and skeleton files for Tiva I2C driver.  Initial
-	  commit is just the STM32 I2C driver with name changes and STM32-
-	  specific logic removed (2014-12-9).
-	* fs/procfs/fs_procfs.c:  Add procfs write support.  From Ken Pettit
-	  (2014-12-9).
-	* include/crc8.h, libc/misc/lib_crc8.c, and Make.defs: Add CRC8 support.
-	  From Ken Pettit (2014-12-9).
-	* drivers/mtd/smart.c, Kconfig, fs/smartfs/smartfs_smart.c,
-	  smartfs_procfs.c, smartfs_utils.c, smartfs.h, Kconfig,
-	  include/nuttx/fs/ioctl.h, smart.h, and mtd/smart.h: Implements wear-
-	  leveling in the SmartFS.  From Ken Pettit (2014-12-9).
-	* arch/arm/src/tiva/tiva_i2c.c: Driver is code complete but still
-	  untested (2014-12-10).
-	* configs/tm4c123g-launchpad/src/tm4c_at24.c, tm4c_bringup.c, and other
-	  files:  Add initialization logic for an external AT24 EEPROM.  This
-	  is intended only to support testing of the Tiva I2C driver
-	  (2014-12-10).
-	* libnx/Makefile, libnx/nxfonts/nxfonts_x11-misc-fixed-*.h, Make.defs,
-	  Makefile.sources, nxfonts_bitmaps.c, graphics/Kconfig, and
-	  include/nuttx/nx/nxfonts.h:  Lots of fonts that derive from
-	  X11-misc-fixed-* fonts.  Converted for use by NuttX by Pierre-Noel
-	  Bouteville (2014-12-10).
-	* nuttx/drivers/mtd/m25px.c; M25P serial flash driver:  Add subsector
-	  size of the M24P16 part.  From Lazlo (2014-12-10).
-	* libc/string/lib_strncpy.c:  Commit d0c76ccacf0dc8988f9617ad82bf4349f456bb08
-	  will trash a lot of memory if n == 0.  From Yasuhiro Osaki (2014-12-11).
-	* arch/arm/src/stm32/stm32_otghsdev.c.  Fix for OTGHS device driver
-	  working in FS mode.  From Ken Pettit (2014-12-12).
-	* libc/stdio/lib_sscanf.c: Accept %X as well as %x as a format
-	  specifier.  From Sébastien Lorquet (2014-12-12).
-	* libc/stdio/lib_sscanf.c: Also accept %F as well as %f (2014-12-12).
-	* arch/arm/src/stm32/stm32_otghsdev.c: For STM32 OTG HS DEV (in FS
-	  mode): Disable ULPI clock enable in RCC AHB1 Register.  If Both ULPI
-	  and the FS clock enable bits are set in FS mode, then the ARM never
-	  awakens from WFI due to a chip issue.  This is only an issue if you
-	  are using the internal PHY.  From Ken Pettit (2014-12-13).
-	* drivers/serial/serial.c: In case a thread is doing a blocking
-	  operation (e.g. read()) on a serial device, while it is being
-	  terminated by pthread_cancel(), then uart_close() gets called, but
-	  the semaphore (dev->recv.sem in the above example) is still blocked.
-	  This means that once the serial device is opened next time, data will
-	  arrive on the serial port (and driver interrupts handled as normal),
-	  but the received characters never arrive in the reader thread.
-	  The problem was fixed by re-initializing the semaphores on the last
-	  uart_close() on the device. From Harald Welte (2014-12-13).
-	* sched/semaphore/sem_recover.c, Make.defs, semaphore.c,
-	  sched/wdog/wd_recover.c, Make.defs, wdog.h, sched/task/task_recover.c:
-	  Add logic to clean up after task_delete() or pthread_cancel() if the
-	  task happens to be waiting on a semaphore when it is cancelled
-	  (2014-12-13).
-	* arch/arm/src/kl/kl_gpioirq.c, Kconfig, Make.defs, and kl_irq.c: Add
-	  GPIO interrupt capability for the KL architecture. The patch is
-	  almost the same as kinetis_pinirq.c, just minor modifications and
-	  rename kl_pinirq to kl_gpioirq to make it more generic to developers.
-	  From Alan Carvalho de Assis (2014-12-13).
-	* arch/sim/src/up_ajoystick.c, Kconfig, Makefile, up_idle.c,
-	  up_internal.h, up_x11eventloop.c, up_x11framebuffer.c,
-	  configs/sim/src/Makefile, sim_boot.c, and traveler/defconfig: Add an
-	  X11 mouse-based simulation of an analog joystick device (2014-12-14).
-	* drivers/sensors/adxl345*, include/nuttx/sensors/adxl345.h and other
-	  files:  Add driver support for the ADXL345 accelerometer.  From  Alan
-	  Carvalho de Assis (2014-12-16).
-	* configs/freedom-kl25z: Add board support for the ADXL345 accelerometer.
-	  From  Alan Carvalho de Assis (2014-12-16).
-	* Kconfig, include/debug.h, drivers/sensors/*, and Qencoder logic in
-	  arch/arm/src/stm32 and various QEncoder board support files under
-	  config/: Unify sensor debug.  ADX driver was using input debug; LM75
-	  and QENCODE that their own custom debug.  Now all use
-	  CONFIG_DEBUG_SENSOR, sndbg() (2014-12-16).
-	* configs/dk-tm4c129x:  Initial board support for the Tiva DK-TM4C129x
-	  Connected Development Kit.  The initial commit is just the Tiva
-	  TM4C123G-Launchpad board support with naming changes (2014-12-16).
-	* include/nuttx/sched.h, sched/Kconfig, sched/init/os_start.c,
-	  sched/pthread/pthread_create.c, sched/task/task_prctl.c,
-	  sched/task/task_setup.c: strncpy() will not copy the terminating \0
-	  into the destination if the source is larger than the size of the
-	  destination. Ensure that the last byte is always zero and let strncpy
-	  only copy CONFIG_TASK_NAME_SIZE bytes. The issue of unterminated names
-	  can be observed in ps when creating a pthread while
-	  CONFIG_TASK_NAME_SIZE is set to 8.  From  Daniel Willmann (2014-12-17).
-	* configs/*/*/defconfig: The previous change increased the task name
-	  size allocation by one to hold a NUL terminator.  This changes reduces
-	  the configured name size by one so that no additional memory is used
-	  (2014-12-17).
-	* drivers/wireless/cc3000/cc3000.c: CC3000 Fix: Data can be unaligned.
-	  When dereferenced as an input ntosh(), a bad value is returned.
-	  Reported by Alan Carvalho de Assis (2014-12-18).
-	* configs/freedom-kl25z: Update the Freedom KL25Z board CC3000 support
-	  to use the current CC300 interfaces.  From Alan Carvalho de Assis
-	  (2014-12-18).
-	* arch/arm/src/tiva, include/tiva, and many configurations:  Change
-	  negative Tiva logic CONFIG_TIVA_DISABLE_GPIOx_IRQS to positive logic
-	  CONFIG_TIVA_GPIOx_IRQ (2014-12-18).
-	* arch/arm/src/tiva/Kconfig:  Fix configuration logic for IRQ interrupts.
-	  The various parts support varying numbers of GPIO blocks and with varying
-	  capabilities to support interrupts on the pins of different GPIO blocks
-	  (2014-12-18).
-	* arch/arm/src/stm32/chip/stm32f40xxx_rcc.h: PLLSAI register name to
-	  this one in the reference manual. From Marco Krahl (2014-12-19).
-	* arch/arm/src/stm32/chip/stm32_ltdc.h: Rename CFBLR register name to
-	  the name used in the reference manual. From Marco Krahl (2014-12-19).
-	* arch/arm/src/stm32/chip/stm32_ltdc.h: Add missing clut register
-	  definition. From Marco Krahl (2014-12-19).
-	* arch/arm/src/stm32/stm32f40xxx_rcc.c:  Configure PLLSAI clock to
-	  enable ltdc register access. From Marco Krahl (2014-12-19).
-	* configs/stm32f429i-disco/include/board.h:  Update board definition for
-	  the ili9341 LCD display. This configures all LCD settings for the RGB
-	  interface. Also adds a customer LCD display template. From Marco Krahl
-	  (2014-12-19).
-	* arch/arm/src/stm32/stm32_ltdc.h: Define a common layer description for
-	  the ltdc and dma2d controller. From Marco Krahl (2014-12-19).
-	* arch/arm/src/stm32/stm32_dma2d.c/.h and related files:  Add
-	  infrastructure for dma2d support. From Marco Krahl (2014-12-19).
-	* arch/arm/include/stm32/ltdc.h:  Add interface to perform hardware
-	  accelerated layer operation. The following methods must be supported
-	  by the implementation: gevideoinfo, getplaneinfo, getlid, setclut,
-	  getclut, setcolor, getcolor, setcolorkey, getcolorkey, setalpha,
-	  getalpha, setblendmode, getblendmode, setarea, getarea, and update.
-	  And if DMA2D is supported: blit and blend.  The method up_ltdcgetlayer
-	  provides access to a reference of a specific ltdc layer. From Marco
-	  Krahl (2014-12-19).
-	* arch/arm/src/stm32/stm32_ltdc.c: Implements ltdc framebuffer support
-	  for the generic nuttx framebuffer interface, (see nuttx/video/fb.h).
-	  This also implements the interface to perform hardware accelerated
-	  layer operation by the ltdc controller and dma2d controller later
-	  (see nuttx/video/ltdc.h). The following methods are supported by the
-	  ltdc interface: getvideoinfo, getplaneinfo, getlid, setclut, getclut,
-	  setcolor, getcolor, setcolorkey, getcolorkey, setalpha, getalpha,
-	  setblendmode, getblendmode, setarea, getarea, and update. From Marco
-	  Krahl (2014-12-19).
-	* include/nuttx/lcd/ili9341.h: Update interface control definitions.
-	  From Marco Krahl (2014-12-19).
-	* configs/stm32f429i-disco/src/stm32_lcd.c:  Add support for
-	  initializing ltdc framebuffer and the configured lcd display.  This
-	  adds support for initializing of the ltdc controller and the lcd
-	  device connected on the stm32f429i-disco. The following methods are
-	  provided for the generic fb interface: up_fbinitialize,
-	  up_fbgetvplane, and up_fbuninitialize. The following methods are
-	  provided for the ltdc interface: up_ltdcgetlayer. From Marco Krahl
-	  (2014-12-19).
-	* zrch/arm/src/stm32/Kconfig: Add configuration option for ltdc.  This
-	  adds the following ltdc configuration options: dither support, cmap
-	  support, is this the right place for CONFIG_FB_CMAP?, support for
-	  extended ltdc interface. From Marco Krahl (2014-12-19).
-	*  nuttx/configs/stm32f429i-disco: Enable configuration of framebuffer
-	  support for the ltdc controller. From Marco Krahl (2014-12-19).
-	* configs/stm32f429i-disco/src/stm32_boot.c: Initialize ltdc during
-	  bootup. From Marco Krahl (2014-12-19).
-	* configs/stm32f429i-disco/ltdc: Add default platform configuration to
-	  test framebuffer support for the ltdc. From Marco Krahl
-	  (2014-12-19).
-	* libnx/nxfonts/nxfonts_getfont.c: A patch to add previous added font
-	  into nxf_getfonthandle function.  From  Pierre-Noel Bouteville
-	  (2014-12-19).
-	* arch/arm/src/tiva, include/tiva, and many configurations:  Change
-	  negative Tiva logic CONFIG_SSIx_DISABLE to positive logic
-	  CONFIG_TIVA_SSIx.  Add support for SSI2 and SSI3 (2014-12-21).
-	* arch/arm/src/efm32/efm32_pwm.c/.h, efm32_timer.c/.h, and related
-	  build files: Add support for timer/PWM on the EFM32GG.  From
-	  Pierre-noel Bouteville (2014-12-26).
-	* drivers/serial/Kconfig, serial.c, serialirq.c, and
-	  include/nuttx/serial/serial.h:  Add watermark levels to the serial
-	  RX flow control logic.  Modify the rxflowcontrol method to accept
-	  the number of bytes in the buffer and a boolean indication of which
-	  watermark was crossed (2014-12-27).
-	* sched/semaphore/sem_waitirq.c must be built when signals are disabled.
-	  That is because not handles not only the case of semaphore wait
-	  being awakened by a signal, but also the case with sem_timedwait.c
-	  when the semaphore wait is awakened by a timeout (2014-12-28).
-	* arch/arm/src/stm32/stm32_ltdc.c: stm32:  Fix faulty access to non-
-	  existing layer.  This disables operation that requires double layer
-	  support, when configured for single layer only.  From Marco Krahl
-	  (2014-12-29).
-	* arch/arm/src/stm32/stm32_ltdc.c: stm32:  Fix wait upon vertical blank.
-	  This should never have occurred before.  From Marco Krahl (2014-12-29).
-	* configs/stm32f429i-disco/ltdc/defconfig and src/stm32_boot.c:
-	  stm32f429i-disco: change ltdc initializing during boot up. This moves
-	  initializing of the ili9341 lcd and ltdc driver to the board specific
-	  initializing routine.  From Marco Krahl (2014-12-29).
-	* arch/arm/src/stm32/stm32_ltdc.c:  Clean up documentation, some
-	  formatting improvements.  From Marco Krahl (2014-12-29).
-	* arch/arm/src/tiva/chip/tiva_ethernet.h, lm3s_ethernet.c, and
-	  tm4c_ethernet.h:  Add logic to discriminate between LM3S class Ethernet
-	  register definitions and TM4C129X class Ethernet register definitions.
-	  Add TM4C129X Ethernet register definitions (2014-12-30).
-	* arch/arm/src/tiva/tm4c_ethernet.c, lm3s_ethernet.c, Kconfig, and
-	  Make.defs: First cut at TM4C129X Ethernet driver.  Initial commit is
-	  basically just the STM32 Ethernet driver with modifications for a clean
-	  compilation in the Tiva environment (2014-12-31).
-	* arch/arm/src/stm32/stm32_rtc.c, stm32_rcc.c, Kconfig: Add support for
-	  the internal low speed clock (LSI) as a source of the RTC clock.  Some
-	  boards do not have the external 32khz oscillator installed, for those
-	  boards we must fallback to the crummy internal RC clock.  Turn on by
-	  defining CONFIG_RTC_LSICLOCK.  From Kevin Hester (2015-01-02).
-	* net/tcp/tcp_conn.c:  Fix a logic error when CONFIG_NETDEV_MULTINIC is
-	  selected: net_unlock(flags) will be called will an uninitialized
-	  variable (2015-01-03).
-	* arch/arm/src/tiva/tiva_irq.c:  Fix Tiva IRQ control logic; was limited
-	  to only 64 IRQs.  That is a problem for higher numbered IRQs on many
-	  platforms (2015-01-06).
-	* arch/arm/src/stm32/stm32_sdio.c, drivers/mmcsd/mmcsd_sdio.c and Kconfig,
-	  and include/nuttx/sdio.h: MMCSD SDIO:  Add support for a new
-	  SDWAIT_WRCOMPLETE condition.  The previous logic used a busy-wait loop
-	  to poll the card R1 status to determine when the card was ready for
-	  the next transfer.  That busy-wait can be quite long -- up to hundreds
-	  of milliseconds.  An alternative is to look the SD D0 pin which
-	  will change state when the card is no longer busy.  This change avoids
-	  the busy-wait poll by reconfiguring the SD D0 pin as a GPIO interrupt,
-	  then waiting for the card to become ready without taking up CPU
-	  cycles.  This change is conditioned on CONFIG_MMCSD_SDIOWATI_WRCOMPLETE
-	  and is currently only implemented for the STM32 SDIO driver. From
-	  David Sidrane (2015-01-08).
-	* arch/arm/src/tiva/tiva_timerlib.c and .h:  Add a timer library for
-	  generic support of Tiva timers (2015-01-08).
-	* arch/arm/src/tiva/tiva_timerlow32.c:  Add a driver lower half for
-	  drivers/timer.c.  Only 32-bit periodic timers are supported.  This
-	  provides userspace access to timers.
-	* configs/px4-v2_upstream, Kconfig, README.txt: Remove the px4-v2_upstream
-	  configuration.  Moved to misc/Obsoleted/configs.  This was not the
-	  official configuration for the PX4 board and has led to confusion by
-	  NuttX users.  The board configuration also requires some ongoing
-	  maintenance and customization to support ongoing PX4 testing and
-	  evaluation.  It is best retained the PX4 repositories where it can be
-	  properly maintained and not in the upstream NuttX repository
-	  (2015-01-14).
-	* net/netdev/netdev_ioctl.c and include/nuttx/net/ioctl.h:  Add support
-	  for IPv6 ioctls to manipulate IP addresses (2015-01-14).
-	* net/icmpv6:  Create a future home for ICMPv6 (2015-01-14).
-	* net/icmp:  Remove all logic conditioned on CONFIG_NET_IPv6
-	  (2015-01-14).
-	* net/, include/nuttx/net, and a few other files: (1) Copied all ICMP
-	  sources files to net/icmpv6 with proper renaming and removal of IPv4
-	  logic, (2) remove IPv6 logic from files in net/icmp, (3) copied
-	  include/nuttx/icmp.h to icmpv6.h and removed IPv4 specific logic, (4)
-	  removed all IPv6 logic from icmp.h, (5) IP_HDRLEN became IPv4_HDRLEN
-	  and IPv6_HDRLEN, (6) ip_chksum() became ipv4_chksum() and
-	  ipv6_chksum(), and (7) added partial support for ICMPv6 statistics
-	  (2015-01-14).
-	* arch/, drivers/net/, include/nuttx/net, and net/devif:  (1) Rename
-	  devif_input() ipv4_input(), (2) copy net/devif/devif_input.c to
-	  ipv6_input.c, remove all IPv4-specific logic, (3) rename
-	  net/devif/devif_input.c to ipv4_input.c, remove all IPv6-specific
-	  logic, and (4) xplit IPv4 header structure out as net_ipv4hdr_s from
-	  net_iphdr_s (2015-01-15).
-	* arch/ and drivers/net:  All Ethernet drivers:  Call ipv6_input() if
-	  IPv6 is enabled and an IPv6 packet is received (2015-01-15).
-	* net/devif, net/tcp, net/ucp, include/nuttx/net:  Separate tcp_input()
-	  and udp_input() into separate functions tcp_ipv4_input(),
-	  tcp_ipv6_input(), udp_ipv4_input(), and upd_ipv6_input() than can deal
-	  will the data offsets caused by the differing sizes of the IP header
-	  (2015-01-15).
-	* net/utils/net_ipv6_maskcmp.c:  Add missing implementation of
-	  net_ipv6_maskcmp() (2015-01-15).
-	* Networking: Drivers can have both IPv4 and IPv6 addresses, but a
-	  socket can only only one or the other; The socket connection
-	  structures need to include a union of IPv4 and IPv6 addresses for
-	  the local address binding and for the remote address connections
-	  (2015-01-16).
-	* Networking:  Replace all references to net_ipaddr_t with either
-	  in_addr_t on net_ipv6addr_t.  The goal is to support both IPv4 and
-	  IPv6 simultaneously.  This requires that the two types be distinct
-	  and not conditionally typedef'ed to net_ipaddr_t (2015-01-16).
-	* Networking:  Replace all references to the macros net_ipaddr_copy,
-	  net_ipaddr_hdrcopy, net_ipaddr_cmp, net_ipaddr_hdrcmp, and
-	  net_ipaddr_maskcmp with the appropriate IPv4 or IPv6 version of the
-	  macro (such as net_ipv4addr_copy).  The goal is to support both
-	  IPv4 and IPv6 simultaneously.  This requires that the macros be
-	  distinct and not conditionally defined to one on or the other
-	  (2015-01-16).
-	* Networking: UDP and TCP MSS depends on the IP header size (as well
-	  as the link layer header size) and cannot be represented with a
-	  single value (2015-01-16).
-	* net/neighbor:  Move net/ipv6 to net/neighbor (2015-01-16).
-	* include/net/if.h:  Add a bit to the device flags to indicate if the
-	  device packet buffer holds an IPv4 or an IPv6 domain packet.
-	  Set/clear the flag along with the correct offset to the application
-	  payload data as each packet is received (2015-01-17).
-	* net/socket, net/tcp, net/udp:  Add logic to select the domain of the
-	  outgoing packet before sending any UDP or TCP packet.  This sets the
-	  bit to indicate the IPv4 or IPv6 domain and the correct offset to the
-	  output going payload data (2015-01-17).
-	* net/socket and net/tcp: When we are ready to receive data or when we
-	  have outgoing data ready to be sent, we need to the notify the
-	  appropriate device driver of this condition.  The notifying socket
-	  will be configured as either PF_INET or PF_INET6 and must look up the
-	  correct driver using the correct IP domain (2015-01-17).
-	* net/socket/accept.c:  Fix accept() so that it returns the correct IP
-	  address for the selected socket IP domain (2015-01-17).
-	* Networking: Final detangling off IPv4 and IPv6 TCP/UDP send logic.
-	  The networking subsystem now compiles with IPv6 enabled (2015-01-18).
-	* arch/arm/src/tiva/tm4c_ethernet.c:  When calling into the stack
-	  from the worker thread, it is necessary to have the stack locked
-	  (2015-01-18).
-	* nuttx/arch/arm/src/stm32/stm32_serial.c:  Fix declaration and
-	definition of up_receive() and up_dma_receive() to match fields of
-	  uart_ops_s from nuttx/include/nuttx/serial/serial.h.  From Freddie
-	  Chopin (2015-01-19).
-	* drivers/pipes/pipe.c, drivers/usbdev/cdcacm.c, and
-	  mm/mm_gran/mm_granalloc.c: Fixes some issues found by the PX4 team
-	  using Coverity.  From Pavel Krienko (2015-01-19).
-	* net/icmpv6/icmpv6_solicit.c, net/neighbor/neighbor_out.c, and other
-	  files: Add logic to search the Neighbor Table and update the
-	  destination address in the output Ethernet header OR to send an
-	  ICMPv6 Neighbor Solicitation if there is no entry in the Neighbor
-	  table for the IPv6 address (2015-01-20).
-	* arch/ and drivers/net:  Add missing raw/packet socket support to
-	  all Ethernet driverss (2015-01-20).
-	* arch/ and drivers/net: Networking:  Modify all Ethernet drivers:
-	  Do neighbor look-up on all outgoing IPv6 packs in order to properly
-	  set the destination link layer address (2015-01-20).
-	* Networking:  When sending ICMPv6 advertisements and solicitations,
-	  set the NOARP bit so that we don't overwrite the destination MAC
-	  address (2015-01-20).
-	* Many files: Correct name of fields in struct sockaddr_in6:  sin6_port
-	  and sin6_family, not sin_port and sin_family (2015-01-20).
-	* net/socket/accept.c: Correct the value returned by accept() in the
-	  case where net_lockingwait() is called.  It was returning -1 and
-	  losing the errno value.  Noted by Rony Xln (2015-01-22).
-	* net/: After some significant effort, ICMPv6 and TCP are both
-	  functional when IPv6 is selected.  UDP still requires testing
-	  (2015-01-22).
-	* configs/dk-tm4c129x/ipv6:  Add an IPv6-enabled NSH configuration
-	  (2015-01-23)
-	* include/nuttx/net/icmpv6.h and net/icmpv6/icmpv6_ping.c: First cut
-	  at ICMPv6 ping logic.  It works in both directions! (2015-01-23).
-	* arch/arm/src/efm32/efm32_rmu.c and .h: Add support for the EFM32
-	  reset management unit (RMU).  From Pierre-noel Bouteville
-	  (2015-01-23).
-	* include/nuttx/math.h: Adds support for the expm1 functions:
-	  http://pubs.opengroup.org/onlinepubs/009695399/functions/expm1.html.
-	  From Brennan Ashton (2015-01-23).
-	* Many file: Add CONFIG_STACK_COLORATION that does the same thing as
-	  CONFIG_DEBUG_STACK but without enabling debug.  From David Sidrane
-	  (2015-01-24).
-	* Remove CONFIG_DEBUG_STACK.  Adding CONFIG_STACK_COLORATION makes
-	  this configuration option pointless (2015-01-24).
-	* net/: Clean up network status collection for IPv6 (2015-01-24).
-	* arch/ and configs/: Changes to get USART 2 & 3 working on
-	  lpc4357-evb. These changes are required to get USART 2 and 3 working
-	  on the Embest development board.  From Toby Duckworth.
-
-7.8 2015-02-11 Gregory Nutt <gnutt@nuttx.org>
-
-	* include/nuttx/math.h and libc/math: Add support for inverse
-	  hyperbolic functions.  From Brennan Ashton (2015-01-26).
-	* include/nuttx/math.h: Add math library definition for isfinite().
-	  From Brennan Ashton (2015-01-26).
-	* include/nuttx/math.h and libc/math/lib_erf*.c: Add error function
-	  to math library.  From Brennan Ashton (2015-01-26).
-	* include/nuttx/math.h and libc/math: Add math library defines for
-	  nan(), copysign(), and trunc() functions.  From Brennan Ashton
-	  (2015-01-26).
-	* sched/wqueue/kwork_process and libc/wqueue/lib_usrthread.c:  Fix
-	  a backward calculation when determining the time to the next event.
-	  This is a bug in the back-up, "fail safe", work queue timing so it
-	  not as bad as it seems.  From Liio Chen via the PX4 repository
-	 (2015-01-27).
-	* arch/arm/src/stm32/stm32_exti_gpio.c:  Disabling any of EXTI 5-9
-	  interrupts was disabling interrupts for all EXTI 5-9. Same issue with
-	  EXTI 10-15.  From Jussi Kivilinna (2015-01-27).
-	* arch/arm/src/stm32/stm32_rtcc.c and Kconfig:  Recent changes to
-	  stm32_rtcc.c do not compile with STM32L15XX configurations.  From
-	  Jussi Kivilinna (2015-01-27).
-	* net/local:  Add initial support for local, Unix domain sockets.
-	  Initial support is limited to SOCK_STREAM and is untested on
-	  initial commit (2014-01-27).
-	* net/iob, net/tcp/tcp_callback.c, and include/nuttx/net/iob.h:  There
-	  were issues with the TCP write-ahead buffering if CONFIG_NET_NOINTS was
-	  enabled:  There is a possibility of deadlocks in certain timing conditions.
-	  I have not seen this with the Tiva driver that I have been users but
-	  other people claim to see the issue on other platforms.  Certainly it
-	  is a logic error:  The network should never wait for TCP read-ahead
-	  buffering space to be available.  It should drop the packets
-	  immediately. This was fixed by duplicating most of the IOB interfaces:
-	  The versions that waited are still present (like iob_alloc()), but now
-	  there are non-waiting versions of the same interfaces (like
-	  iob_tryalloc()).  The TCP read-ahead logic now uses only these non-
-	  waiting interfaces (2015-01-27).
-	* net/tcp/tcp_send_buffered.c and tcp_wrbuffer.c: Fix another deadlock
-	  condition.  tcp_write_buffer_alloc() calls sem_wait() with network
-	  locked.  That worked if CONFIG_NET_NOINTS was not defined because
-	  interrupts are automatically restored when the wait happens.  But
-	  with CONFIG_NET_NOINTS=y, the wait blocks with the network locked --
-	  bad style and also can lead to a deadlock condition (2015-01-28).
-	* arch/arm/src/armv7-a/arm_memcpy.S and arch/arm/src/armv7-m/up_memcpy.S:
-	  ARM assembly language memcpy.S's were not returning a value in R0 they
-	  are required to do.  From David Sidrane (2015-01-29).
-	* net/local:  Extend Unix domain socket support to include support
-	  for datagram Unix domain sockets (2015-01-29).
-	* net/socket/accept.c:  Fix a major TCP bug introduced with commit
-	  e71c09ce9777ff732cb60bd07fb43d85522f79d6.  Some connection logic was
-	  reordered; setting the socket as 'connected' got moved to BEFORE the point
-	  where the check was made if the socket was already connected.  The
-	  resulting behavior was odd:  Telnet would connect, but then when you
-	  exit and reconnect, it would fail to connect.  But then if try again, it
-	  would connect okay. So the symptom was connect-fail-connect-fail-...
-	  (2015-01-29).
-	* net/socket/net_poll.c, recvfrom.c, and udp/udp_callback.c: Add UDP
-	  read-ahead support.  This enables support for for poll/select on UDP
-	  sockets and also non-blocking UDP sockets.  From Macs N (2015-01-30).
-	* net/local/local_netpoll.c, socket/net_poll.c, and udp/udp_netpoll.c:
-	  Separate out UDP poll logic from net_poll.c into a new udp_netpoll.c;
-	  Create a skeleton local_netpoll (2015-01-30).
-	* net/socket/net_poll.c and tcp/tcp_netpoll.c: Separate TCP poll logic
-	  out of net_poll.c and move it into the new tcp_netpoll.c (2015-01-30).
-	* arch/arm/src/efm32/efm32_clockconfig.c: Logic to unconditionally enable
-	  LE clocking. Even you don't use core clock LE as source for LFA or LFB,
-	  to read are write any register not clocked by HFPERCLK or HFCORECLK,
-	  HFCORECLKLE should be enabled.  From Pierre-noel Bouteville (2015-01-30).
-	* drivers/net/slip.c: SLIP interface improvements.  From Macs N
-	  (2015-01-30).
-	* clock_systimespec():  Fixes for compilation errors in certain
-	  configurations.  From Macs N.
-	* drivers/pipes/fifo.c, include/nuttx/fs/ioctl.h, and net/local/local_fifo.c:
-	  Fix a race condition between FIFO buffer operations and the opening and
-	  closing of FIFOs which necessary when the FIFOs are used to support
-	  Unix domain, datagram sockets.  The default policy is the deallocate
-	  FIFO buffering when the last client closes the pipe.  When when used
-	  for datagram communications, packets left in the FIFO will be lost.
-	  Some like UDP read-ahead is needed:  The buffered data in the FIFO
-	  needs to be retained until the reader gets a chance to re-open the
-	  FIFO.  Added an ioctl (PIPEIOC_POLICY) to control the buffer policy.
-	  Default (0) is the legacy behavior; Unix domain datagram logic sets
-	  the alternative policy so that the packet data persists after the FIFO
-	  is closed (2015-01-30).
-	* net/local:  Add configuration options so that Unix domain stream and
-	  datagram support can be separately enabled (2015-01-31).
-	* fs/vfs/fs_unlink.c and include/nuttx/fs/fs.h: Add an unlink method to
-	  both the character and block driver interface.  This is important
-	  because if the driver inode is unlinked and there are no open references
-	  to the driver, then the driver resources will be stranded.  On the unlink
-	  call, the driver has the opportunity (1) check if there an any open
-	  references, and if not, (2) free the driver resources (2015-01-31).
-	* drivers/pipes:  Implement the unlink method.  If the pipe/FIFO is
-	  unlinked, it will marked the pipe/FIFO as unlinked.  If/when all open
-	  references to the driver are closed, all of the driver resources will
-	  be freed (2015-01-31).
-	* arch/avr: Added architecture support for the Atmel AVR ATMega1284P
-	  MCU.  From Jedi Tek'Unum (2015-01-31).
-	* configs/moteino-mega: Added support for the LowPowerLab MoteinoMEGA
-	  that is based on the Atmel AVR ATMega1284P MCU.  From Jedi Tek'Unum
-	  (2015-01-31).
-	* EFM32 RTC:  RTC driver using BURTC. From Pierre-Noel Bouteville
-	  (2015-02-01).
-	* drivers/ramdisk.c, include/nuttx/fs/ramdisk.h, and other files:  Add
-	  logic to dispose of the driver and RAM buffer when the RAM disk has
-	  been unlinked and all open references to the RAM disk have been
-	  closed.  Add new parameters to romdisk() to specify what should be
-	  done with the RAM/ROM buffer -- Should it be freed or not?  Changed
-	  all calls to ramdisk() to use these new parameters (2015-02-01).
-	* net/icmpv6/icmpv6_neighbor.c, icmpv6_notify.c (and other files): Adds
-	  basic logic to support verification that we have the IPv6 address in
-	  the Neighbor Table.  This feature is important because otherwise the
-	  first packet sent to a remote peer will fail (it will be replaced
-	  with a Neighbor Solicitation) (2015-01-02).
-	* net/arp/arp.h, arp_notify.c, and arp_send.c: Fixes another
-	  CONFIG_NET_NOINTS issues.  When called sem_timedwait() with the
-	  network locked, the network stays locked while we wait which is not
-	  what we want (without CONFIG_NET_NOINTS, interrupts are re-enabled
-	  while we wait and all is well) (2015-02-02).
-	* net/icmpv6/icmpv6.h, icmpv6_neighbor.c, icmpv6_notify.c: Apply the
-	  same fix as for ARP to the Neighbor Solicitation logic (2015-02-02).
-	* sched/sched/sched_timerexpiration.c, Kconfig, and include/nuttx/arch.h:
-	  On my platform I have just 16-bit timer clocked at 32kHz. As result
-	  oneshot timer max delay is 2s. The patch adds limit of maximum ticks
-	  in sched_timer_start(). From Macs N (2015-02-03).
-	* arch/arm/src/sam34:  Add support for Tickless mode of operation for
-	  the SAM4CM platform.  From Macs N (2015-02-03).
-	* include/nuttx/net/icmpv6.h and net/icmpv6/Kconfig: Add support for
-	  sending ICMPv6 Router Solicitation and receiving Router advertisement.
-	  This is a part of the ICMPv6 auto-configuration logic is still not
-	  complete (2015-02-03).
-	* libnx/nxfonts/nxfonts_getfont.c and nxfonts_sans39x48.h: Fixes a
-	  problem with one of the font files.  From Pierre-noel Bouteville
-	 (2015-02-03).
-	* arch/arm/src/efm32/efm32_rtc_burtc.c:  Remove a misbehaving assertion.
-	  From Pierre-noel Bouteville (2015-02-03).
-	* net/icmpv6:  Implemented the ICMPv6 Autonomous Auto-Configuration
-	  logic.  This is an IPv6 alternative to DHCP.  It obtains the IPv6
-	  addresses and masks using ICMPv6 Router Solicitation and
-	  Advertisement messages (2015-02-03).
-	* arch/arm/src/stm32/stm32_aes.c, stm32_aes.h, and
-	  chip/stm32l15xxx_aes.h:  Add driver for STM32L162XX AES peripheral.
-	  From Juha Niskanen (2015-02-04).
-	* net/icmpv6/icmpv6_radvertise.c, Kconfig, and other files: Add option
-	  to send Router Advertisement Messages (2015-02-05).
-	* net/icmpv6/icmpv6_input.c, arch/arm/src/tiva/tm4c_ethernet.c, and
-	  stm32/stm32_eth.c: Add logic to behave like a router (if so
-	  configured):  NuttX will not send the router advertisement message
-	  in response to any router solicitation messages (2015-02-05).
-	* configs/stm32f4discovery/ipv6 and arch/arm/src/stm32/stm32_eth.c: Add
-	  an IPv6 configuration for the STM32F4-Discovery board (with the
-	  STM32-DISCO_BB base board).  Verify that the STM32 Ethernet driver
-	  works with IPv6 (2015-02-05).
-	* net/icmpv6/icmpv6_input.c and icmpv6_rnotify.c:  With these two
-	  changes both ICMPv6 autonomous autoconfiguration and router
-	  functionality appear to be working with no problems (2015-02-05).
-	* arch/arm/src/tiva and configs/tm4c123g-launchpad:  Adds support for
-	  TM4C123G timers; integrates with the TM4C123G Launchpad.  From Calvin
-	  Maguranis (2015-02-05).
-	* arc/arc/src/tiva/tiva_adc.c and .h: Adds a Tiva ADC driver.  From
-	  Calvin Maguranis (2015-02-05).
-	* tmv4c123g-launchpad:  Add Tiva ADC support to the TM4C123G-Launchpad.
-	  From Calvin Maguranis (2015-02-05).
-	* arch/arm/src/stm32/stm32_spi.c: The source clock for SPI 4,5, and 6
-	  should be PCLK2, not PCLK1 (for F411, F427, and F429).  Per David
-	  Sidrane (2015-02-07).
-	* drivers/syslog/syslog_console.c, include/nuttx/syslog/syslog_console.h,
-	  and the console device initialization logic for all architectures: Add
-	  an option to use the syslog'ing device as the system console.  This
-	  option enables a low-level, write-only console device at /dev/console
-	  (similar to the low-level UART console device).  From Pierre-noel
-	  Bouteville (2015-02-08).
-	* net/utils:  Clean up and consolidate some clunky stuff in ARP and
-	  ICMPv6 time waiting logic by adding new net_timedwait() function
-	  (2015-4-09).
-	* arch/arm/src/stm32/stm32_eth.c: Add logic so that STM32 Ethernet
-	  driver can avoid interrupt level processing and, instead, execute on
-	  the work thread (2015-4-09).
-	* configs/stm32f4discovery/netnsh and ipv6: Convert all STM32F4-
-	  Discovery configurations (with base board) to configure the Ethernet
-	  driver to use the work queue (vs. interrupt level processing)
-	  (2015-4-09).
-	* libc/unisted/lib_execl.c:   Fix bad logic in counting the number of
-	  arguments.  This could never have worked.  Noted by Pierre-noel
-	  Bouteville (2015-4-09).
-	* arch/arm/src/sama5/sam_emacb.c: Add support for Multicast address
-	  matching and IPv6 in the SAMA5D4 Ethernet driver (2015-02-09).
-	* configs/sama5d4-ek/ipv6: Add a configuration for testing IPv6 with
-	  the SAMA5D4-EK (2015-02-09).
-	* arch/arm/src/armv7-a/arm_doirq.c: ARMv7-A interrupt handler should not
-	  automatically re-enable interrupts on interrupt return.  That
-	  interferes with the driver's ability to manage interrupts (2015-02-09).
-	* arch/arm/src/sama5/sam_emacb.c: Add support for CONFIG_NET_NOINTS in
-	  the SAMA5D4 Ethernet driver so that the driver can operate from the
-	  work queue thread instead of doing everything from the interrupt level
-	  (2015-02-09).
-	* SAMA5D4-EK: CONFIG_NET_NOINTS is now enabled in the nsh and ipv6
-	  configurations (2015-02-09).
-	* arch/arm/src/a1x, arm, c5471, common, dm320, imx, lpc2378, lpc31xx,
-	  sama5, str71x, hc/src.common, sh/src/common, x86/src/common,
-	  z16/src/common, z16f, z80/src/z8: Big, very risky change:  Remove all
-	  occurrences of up_maskack_irq() that disable and enable interrupts
-	  with up_ack_irq() that only acknowledges the interrupts.  This is only
-	  used in interrupt decoding logic.  Also remove the logic that
-	  unconditionally re-enables interrupts with the interrupt exits.  This
-	  interferes with the drivers ability to control the interrupt state.
-	  This is a necessary, sweeping, global change and unfortunately
-	  to test (2015-02-09).
-	* mtd/ramtron.c:  Table of parts is not terminated properly if
-	  CONFIG_RAMTRON_FRAM_NON_JEDEC is not defined.  Noted by David
-	  Sidrane (2015-02-09).
-	* arch/arm/src/sam34/sam_emac.c, sama5/sam_emaca.c, and sama5/sam_gmac.c:
-	  Clone the SAMA5D4 IPv6 support to the SAM4E EMAC and SAMAd3 EMAC and
-	  GMAC drivers  (2015-02-09).
-	* net/:  Lots of build problems introduced into multiple NIC support.
-	  Many places where conditional logic based on CONFIG_NETDEV_MULTINIC is
-	  confused with CONFIG_NET_MULTILINK.  Lots of code changed with IPv6
-	  that was never compiled with MULTINIC enabled.  Still some problem
-	  with parameter passing in the MULTINIC configuration(2015-02-09).
-	* net/iob/Kconfig: In IOB Configuration, the default number of IOB
-	  chains must be more than zero is UDP read-ahead is enabled (2015-02-10).
-	* net/tcp/tcp_conn.c and udp/udp_conn.c: Fix several build errors/warning
-	  with IPv4 + IPv6 + multiple networks are enabled (2015-02-10).
-	* arch/arm/src/sam34/sam_emac.c: SAM4 Ethernet driver bow supports
-	  operation using the high priority work queue so that packet processing
-	  can occur outside of interrupt level processing (2015-02-10).
-	* SAM4E-EK: The nsh configuration now configures the Ethernet driver
-	  for execution on the HP work thread (2015-02-10).
-	* arch/arm/src/lpc17xx/lpc17_ethernet.c: Add IPv6 support to the LPC17
-	  Ethernet driver.  Untested... I no longer have a proper environment
-	  for LPC17 debug (2015-02-10).
-	* include/netinet/in.h and libc/net/lib_addrconfig.c: Some extensions
-	  to netinet/in.h adding some Linux compatible definitions.  From Macs N
-	  (2015-02-11).
-	* arch/arm/src/kl:  Add architectural support for the K26Z128VLH4 chip.
-	  From Derek B. Noonburg (2015-02-11).
-	* configs/freedom-kl26z: Add board support for the Freedom KL26Z board.
-	  From Derek B. Noonburg (2015-02-11).
-
-7.9 2015-04-14 Gregory Nutt <gnutt@nuttx.org>
-
-	* arch/arm/src/tiva:  Add support for the TM4C1294.  Contributed by
-	  Frank Sautter (2015-02-11).
-	* configs/tm4c1294-launchpad:  Add support for the TM4C1294 Launchpad.
-	  Contributed by Frank Sautter (2015-02-11).
-	* gettimeofday():  Move gettimeofdady() from sched/clock to libc/time.
-	  Remove gettimeofday() from NuttX system calls.  It is only a wrapper
-	  around clock_settime() and does not need a trap.  gettimeofday() is
-	  no longer treated as a core OS interface (2015-02-12).
-	* settimeofday(): gettimeofday has been decrecated in POSIX 2008.
-	  settimeofday() was never part of POSIX, but I decided to add it to
-	  libc as well just for symmetry (2015-02-12).
-	* drivers/sensors/mpl115a.c and include/nuttx/sensors/mpl115a.h: Add
-	  driver for the Feescale MPL115A baramoter.  From Alan Carvalho de
-	  Assis (2015-02-12).
-	* configs/viewtool-stm32f107:  Add support for an optional, add-on
-	  Freescale MPL115A baramoter.  From Alan Carvalho de Assis
-	  (2015-02-12).
-	* sched/clock/clock_systimer.c: Fix a problem in clock_systimer64 that
-	  occurs when (1) the 64-bit system time is enabled, and (2) the value
-	  of CONFIG_USEC_PER_TICK is less than 1 milliseconds (such as when using
-	  the tickless mode of operation).  In that case, the conversion of time
-	  to 64-bit millisecond value in clock_systmer64() causes some bad times
-	  to be returned.  Time was converted to milliseconds, then to configured
-	  ticks.  Precision was lost in the millisecond conversion. The fix is
-	  to first convert time to a 64-bit microsecond value, then to the
-	  configured tick value. Noted by David Sidrane (2015-02-13).
-	* include/nuttx/rtc.h, arch.h, and arch/*/src/*_rtc.h: Removed all of the
-	  old, malformed RTC interface definitions from include/nuttx/rtc.h.  The
-	  necessary prototypes have been removed, renamed, scattered to the wind,
-	  hidden under rocks, -- whatever it takes to make it clear that there is
-	  no RTC interface callable from application code (2015-02-13).
-	* include/nuttx/rtc.h and fs/ioctl.h:  Begin the definition of a proper,
-	  driver based RTC interfaces that is better suited to the architectural
-	  goals of nuttx (2015-02-13).
-	* drivers/timers/timer.c and watchdog.c: Move timer-related drivers from
-	  drivers/ to drivers/timers (2015-02-13).
-	* drivers/timers/rtc.c:  Add an RTC upper half driver.  This is the driver
-	  that is documented in include/nutt/rtc.h (2015-02-13).
-	* arch/arm/src/stm32/stm32_rtcc.c and stm32_rtc.h: Break out a new internal
-	  interface, stm32_rtc_setdatetime().  This eliminates some un-necessary
-	  time conversions.  From Freddie Chopin (2015-02-13).
-	* arch/arm/src/stm32/stm32_rtc_lowerhalf.c, Make.defs, and stm32_rtc.h: Add
-	  a skeleton implementation of the RTC lower half interface at
-	  arch/arm/src/stm32/stm32_rtc_lowerhalf.c.  This is just the framework for
-	  the RTC lower half.  None of the interface methods have yet been
-	  implemented (2015-02-13).
-	* net/icmpv6/icmpv6_advertise.c and icmpv6_solicit.c:  Add inclusion of
-	  nuttx/net.h to two files.  Without these there can be compilation errors
-	  in certain configurations.  From Max Neklyudov (2015-02-13).
-	* net/net_initialize.c, sched/init/os_start.c, and a few other files:
-	  Divide net_intiialize() into net_setup() and net_initialize() to solve
-	  a chicken-and-egg problem.  net_setup() must be called before
-	  up_initialize() is called so that networking data structures are ready
-	  to register new network devices.  net_initialize() now does only timer
-	  related operations and is called AFTER up_initialize() where the timers
-	  are configured.  Problem note by Max Neklyudov (2015-02-14).
-	* include/time.h and sys/time.h: Move struct timeval from include/time.h
-	  to include/sys/time.h where it belongs (2015-02-15).
-	* arch/arm/src/stm32/stm32_rtcc.c, stm32_rtc.h, and Kconfig: Extend the
-	  RTC interface to support reading subseconds.  From Jussi Kivilinna
-	  (2015-02-16).
-	* arch/arm/src/efm32/efm32_usbdev.c: EFM32 USB Device is now basically
-	  functional with this change.  From Pierre-noel Bouteville (2015-02-16).
-	* include/nuttx/net/ip.h:  Move macros and common logic for IPv4-mapped
-	  IPv6 addresses from files in net/ to include/nuttx/ip.h.  These are
-	  currently only used for UDP, but will need to be be used in many places
-	  in the future (2015-02-17).
-	* includes/nuttx/compiler.h:  Add support for the restrict keyword
-	  (2015-02-17).
-	* include/netdb.h:  Add a mostly-commented-out version of the standard
-	  netdb.h header file (2015-02-17).
-	* arch/arm/src/tiva/:  Updated files to allow for ADC triggering by the
-	  timer. I’ve cleaned up some parts of the ADC code, too, and fleshed
-	  out the PWM triggering ioctl.  From Calvin Maguranis (2015-02-17).
-	* configs/tm4c123g-launchpad: Add ADC support.  From Calvin Maguranis
-	  (2015-02-17).
-	* fs/fat/fs_mkfatfs.c:  Use DMA memory for mkfatfs when needed. This makes
-	  mkfatfs use fat_dma_alloc() when CONFIG_FAT_DMAMEMORY is set. This is
-	  needed to ensure mkfatfs operates with boards that use DMA for microSD.
-	  From Andrew Tridgell via the PX4/NuttX repository (2015-02-17).
-	* include/nuttx/rtc.h, fs/fs.h, drivers/ramdisk.c, pipes/, and
-	  timers/rtc.c: The inode unlink method should not be support if
-	  operations on the root pseudo-filesystem are disabled (2015-02-18).
-	* include/nuttx/sched timing functions:  Fix some nanosecond comparisons.
-	  Comparisons should be greate than OR EQUAL TO 1000000000 for maximum
-	  value of nanoseconds in struct tm.  From Juha Niskanen (2015-02-20).
-	* tm4c123g-launchpad: Add board button interrupt logic.  From Calvin
-	  Maguranis (2015-02-20).
-	* "Tiva: Move GPIO prototypes out of arch/arm/include/tiva/irq.h to
-	  arch/arm/tiva/tiva_gpio.h where they belong (2015-02-20).
-	* arch/arm/src/tiva: Tiva GPIO clean-up by Calvin Maguranis (2015-02-20).
-	* arch/arm/src/stm32/stm32_pwr.c, stm32_pwr.h, and stm32_rtcc.c: Changes
-	  to support fully write protecting the backup domain. N.B.
-	  stm32_pwr_enablebkp did not account for the delay from enable to the
-	  domain being writable. The KISS solution is a up_udelay. A more
-	  complex solution would be a negated write test with restore.  From
-	  David Sidrane (2015-02-21).
-	* arch/arm/src/stm32/stm32_bbsram.c, stm32_bbsram.h, Kconfig, and
-	  Make.defs: Adds the ability to use the STM32F2 and STM32F4 Battery
-	  Backedup SRAM in the file system. With an option to Save Panic
-	  context to one of the files. From David Sidrane (2015-02-21).
-	* configs/pic32mx-starterkit:  Rename from pic32-starterkit to make
-	  room on the namespace for a pic3mz-starterkit.  Update src/ directory
-	  file naming to match current standard.  Refresh configurations.  Move
-	  linker scripts to a new scripts/directory.  Make sure that it builds
-	  using the Pinquino toolchain (2015-02-21).
-	* arch/mips/src/mips32/Toolchain.mk: Current Pinguino toolchain uses
-	  the prefix p32- instead of mips- (2015-02-21).
-	* configs/pic32mz-starterkit: Add basic board support for the PIC32MZ
-	  (can't build yet of course because there is not yet any PIC32MZ
-	  support) (2015-02-22).
-	* arch/mips/src/pic32mz and include/pic32mz:  Add some PIC32MZ header
-	  file definitions and just enough logic in the source directory so
-	  that we can run 'make menuconfig'.  Still a very long way from being
-	  complete (2015-02-22).
-	* libc/time/lib/lib_sfrtime.c:  Missing implementation of %C in
-	  sfrtime() C (was being treated as %y).  From Freddie Chopin
-	  (2015-02-23).
-	* drivers/can.c: In the can_open function: this line
-	  'dev->cd_ocount = tmp;' needs to be moved a few lines down otherwise
-	  the open count will only be incremented from 0 to 1. This causes
-	  problems when trying to open the can bus from two different tasks.
-	  SourceForge Patch #46 from Anonymous (2015-02-23).
-	* Tiva TM4c1294: Updates from Frank Sautter (2015-02-24).
-	* fs/aio: correct some backward tests in aio_read() and aio_write():
-	  Socket descriptors have higher numbers than file descriptors.  In
-	  aio_contain(),  Copy u.ptr (void *) when initializing aioc and not
-	  the case specific u.aioc_filep.  From Michal Ulianko (2015-02-24).
-	* include/pthread.h: Fix PTHREAD_COND_INITIALIZER (2015-02-24).
-	* sched/clock/clock_systimespec.c:  When an RTC is used clock_systimespec()
-	  must subtract the basetime from the returned time.  It needs to
-	  return the time since power up, no the current time.  Issue noted
-	  by Max Neklyudov (2015-02-25).
-	* fs/vfs/fs_select.c and sched/semaphore/sem_timedwait.c: Fix places
-	  where the errno value was being overwritten by subsequent actions so
-	  that the returned errno value was incorrect.  From Max Neklyudov
-	  (2015-02-25).
-	* include/sys/select.h: Extend the fd_set type definition so that it
-	  can handle more than 32 descriptors (if so configured).  From Max
-	  Neklyudov (2015-02-25).
-	* net/netdev/netdev_unregister.c:  Fix a list handling error in
-	  netdev_unregister().  From Max Neklyudov (2015-02-27).
-	* net/netdev/netdev_register.c: Improve the network device registration
-	  logic.  When multiple link types are used, modify how each interface
-	  number is assigned to the device name by incrementing the device
-	  number individually for each interface link type.  From Max Neklyudov
-	  (2015-02-27).
-	* include/nuttx/board.h:  Remove common board function prototypes from
-	  other files and consolidate them in this new header file (2015-02-27).
-	* arch/mips/src/pic32mz/: Implement support IO port interrupts
-	  (2015-03-01).
-	* configs/pic32mz-starterkit/src: Add support for on-board buttons
-	  (2015-03-01).
-	* include/nuttx/spi/spi.h:  Add an SPIDEV_USER so that there can be
-	  board-specific definitions of SPI devices (2015-03-01).
-	* arch/arm/src/stm32 and arch/arm/src/stm32: Adds architecture support
-	  for the STM32F372 and F373 (no board support yet). Only tested on
-	  STM32F373CC, but should work on the rest.  Contributed by  Marten
-	  Svanfeldt (2015-03-01).
-	* arch/mips/src/pic32mz/pic32mz-spi.c and chip/pic32mz-spi.h:  Add
-	  support for a basic SPI driver for the PIC32MZ (2015-03-03).
-	* include/nuttx/i2c.h:  Add a user provided void * argument to the
-	  I2C callback method for the I2C slave interface.  Suggested by
-	  Nate Weibley (2015-03-03).
-	* crypto/, include/nuttx/crypto, and arm/src/common/up_initialize.c:
-	  Fix issues when AES support was added for the STM32L1.  From Juha
-	  Niskanen (2015-03-04).
-	* arch/arm/src/stm32/stm32_spi.c and .h: Add missing SPI callback
-	  functions to the STM32 SPI driver.  From Freddie Chopin (2015-03-04).
-	* arch/*/src/*/*_assert.c, configs/Kconfig, and include/nuttx/board.h:
-	  Add support for dumping board-specific information on assertion.
-	  From David Sidrane (2015-03-04).
-	* drivers/spi/Kconfig: Add missing CONFIG_SPI_CALLBACK selection.  Noted
-	  by Freddie Chopin (2015-03-04).
-	* arch/arm/src/samv7 and include/samv7:  Add basic build directories
-	  and configuration logic for the Atmel SAMV7 family (2015-03-05).
-	* arch/arm/src/Makefile, armv7-m/Toolchain.defs: Make ARM build system
-	  Cortex-M7 ready (2015-03-05).
-	* arch/arm/src/sam34/sam_start.c:  Leverage start-up logic from STM32
-	  to (1) Enable the FPU and (2) perform IDLE stack coloration
-	  (2015-03-05).
-	* arch/arm/src/armv7-m/up_lazyexception.S, Kconfig and severl other
-	  files:  Add support for lazy FPU state saving.  Not yet verified.
-	  (2015-03-06).
-	* arch/arm/Kconfig, Make.defs, sam_start.c, configs/Kconfig,
-	  samv71-xult: Add a bare bones framework that will do nothing more than
-	  support configuration for the Atmel SAMV71 Xplained Ultra board.  Very
-	  much a work in progress (2015-03-06).
-	* sched/mqueue/mq_timedsend.c:  Should not check for valid time if
-	  there is space in the message queue.  Noted by Freddie Chopin
-	  (2015-03-10).
-	* arch/arm/src/tiva/tiva_timerlib.c:  Fix a typo in peripheral wait
-	  logic:  gptm, not gpio.  From Bradley Noyes (2015-03-10).
-	* drivers/net/tun.c, Make.defs, include/nuttx/net/net.h, tun.h, and
-	  net/Kconfig: Add TUN device.  From Max Neklyudov (2015-03-11).
-	* fs/fat/fs_fat32.c: fat_unbind() was accessing 'fs->fs_sem' after
-	  freeing the 'fs' struct. From Juha Niskanen (2015-03-11).
-	* fs/procfs/fs_procfsproc.c: fs_procfsproc: Fix potential NULL pointer
-	  dereference of 'node'.  From Juha Niskanen (2015-03-12).
-	* sched/sched/sched_waitpid.c: Do not use uninitialized boolean in
-	  waitpid().  From Juha Niskanen (2015-03-12).
-	* libc/stdio/lib_ungetc.c:Fix NULL pointer dereference in ungetc().
-	  If 'stream' was NULL, 'stream->fs_oflags' was evaluated.  From Juha
-	  Niskanen (2015-03-12).
-	* arch/arm/src/stm32/stm32_i2c.c: Add missing NULL check.  From Juha
-	  Niskanen (2015-03-12).
-	* drivers/usbdev/usbmsc_scsi.c: Add NULL pointer check.  From Juha
-	  Niskanen (2015-03-12).
-	* drivers/bch/bchdev_driver.c: Avoid NULL pointer dereference when
-	  bch->refs  == 255.  From Juha Niskanen (2015-03-12).
-	* arch/arm/src/armv7-m/mpu.h:  Bad syntax in ARMv7-M MPU logic would
-	  cause failure to write the correct value to the MPU_RASR register.
-	  From Juha Niskanen (2015-03-12).
-	* net/socket/net_dupsd.c: Do not call sockfd_socket() twice.  From
-	  Juha Niskanen (2015-03-12).
-	* arch/arm/src/stm32/stm32_usbdev.c: Fix stale initialization
-	  invalidating later NULL check.  From Juha Niskanen (2015-03-12).
-	* arch/arm/src/stm32/stm32_serial.c and chip/stm32f10xxx_dma.h: Fix
-	  RX DMA setup for UART5.  From  Jussi Kivilinna (2015-03-13).
-	* arch/arm/src/stm32/stm32_serial.c: Make input hardware flow-control
-	  work with RX DMA.  From Jussi Kivilinna (2015-03-13).
-	* drivers/pipes/pipe_common.c: Fix zero-lenth writes to pipes/FIFOs.
-	  From Jussi Kivilinna (2015-03-13).
-	* drivers/serial/serial.c: Report correct number of bytes free in
-	  serial buffer with FIONWRITE.  From Sami Pelkonen via Jussi Kivilinna
-	  (2015-03-13).
-	* drivers/mmcsd/mmcsd_spi.c: Debugging and manuals (this one
... 17632 lines suppressed ...


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