https://community.dev.fedoraproject.org/packages/libmodbus
http://packages.debian.org/search?keywords=libmodbus
http://packages.ubuntu.com/search?keywords=libmodbus

Of course, we'll happy to support other distributions!

To improve the communication and ease the subscription process, the libmodbus project as moved from Launchpad list to Google Groups libmodbus@googlegroups.com.

Update: Julien Boibessot integrated libmodbus into Buildroot.

libmodbus 3.0.2 (2012-01-16)

• Update Debian package.
• Documentation fixes and additions.
• Add missing C++ macros in public headers. Thanks to Bernhard Agthe.
• Protects modbus_mapping_free against NULL argument. Thanks to Andrea Mattia.
• Fix check on file doc/libmodbus.7 in acinclude.m4 (closes #28)
• Close file descriptor when the settings don't apply in RTU. Original patch provided by Thomas Stalder.
• unit-test.h is now generated to avoid config.h dependency.
• Request for Windows Sockets specification version 2.2 instead of 2.0. Thanks to Pavel Mazniker for the report.

GNOME 3.0 is really stable, except with the Open Source driver on my Radeon 5870 (4 crashes in 2 months).

I really like the behavior of dual-head where the secondary screen has only one virtual screen.
For me, there are just 3 annoying points:

• Ctrl + Del to remove a file in Nautilus, may be it's a Fedora settings but this change is just @!# I've already a Trash to undo my mistakes (http://www.khattam.info/howto-enable-delete-key-in-nautilus-3-fedora-15-2011-06-01.html)
• Alt key to shutdown, no I don't want to waste energy for days and my PC boots quickly.
• only vertical virtual screens, I found a bit painful to move down two screens when the screen is reachable with one move with a 2x2 layout but I understand this layout doesn't fit well with the GNOME 3 design.

To have a good experience with GNOME 3, I use:

• Windows key + type to launch everything
• Ctrl + Shift + Alt + arrows to move the application between the virtual screen
• Ctrl + click in the launcher when I really want a new instance (the default behavior is perfect)
• snap à la Windows 7 is great
• Alt + Tab then the arrow keys to select an app

Don't forget to read https://live.gnome.org/GnomeShell/CheatSheet or the Help (System key + 'Help').

It's not specific to GNOME 3 but you can change the volume when your mouse is over the applet (don't click, think hover) and a mouse scroll.
With GTK+, do you know you can reach the end of scrolled area with a left click on the arrow and a specific position by middle click?

I'm impressed by the new features of GNOME 3.2 and I'm waiting for Fedora 17 to enjoy it!

PS: a simple request.is_ajax () after a redirect() in Django highlights the problem.

coreutils 8.13 release note.

You want to show the local time for 9AM next Friday on the west coast of the US, it's possible:

$ date --date='TZ="America/Los_Angeles" 09:00 next Fri'

The maintainers/contributors (Pádraig Brady, Jim Meyering and Eric Blake) are nice and quick to commit your patches.
So don't be intimidated it's not the glibc project!

PS: I'm waiting for the tag on translationproject.org to be able to push the latest French translation.

Thank you Ivan.

Update with python-mode v6.0.4, add this line to python-mode-syntax-table (line 153):

(modify-syntax-entry ?\_ "_" table)


libmodbus 3.0.1 (2011-07-18)

• Avoid useless serial_mode integer when TIOCSRS485 isn't supported
• Fix compilation failure on Windows (RS485 support) by Tobias Doerffel
• Properly check TIOCSRS485 define by Matthijs Kool
• Rename package to libmodbus5 to fix lintian warning

• more coherent and extended API
• POSIX error return codes
• full documentation of the API
• IPv6 support
• new backend design
• support for Windows, MacOS X and FreeBSD
• rewriting of the message reading to avoid timeout
• native serial communication on Windows

Thanks to the many contributors

Tobias Doerffel, Florian octo Forster, Hannu Vuolasaho, Patsy Kaye, Ivo De Decker,
Allan Cornet, Manfred Gruber, Jason Oster, Petr Parýzek, Antti Manninen, Barry Grumbine,
Kirill Smelkov, Anibal Limón, David Olivari, Sisyph, aladdinwu, Jeff Laughlin, Yishin Li , Henrik Munktell, Paul Fertser, Norbert Koch and Stéphane Raimbault.

The development continues for the next v3.1 release with this roadmap.

Have fun!

It's easy to test the library, just compile and run the unit tests! Don't forget to notify your success or failure (by mail, wiki or bug report), see the Call for Testers page or the mailing list for details.

There are already Debian and Fedora packages but I need help to submit them to the distributions, so all experience in this field is appreciated.

libmodbus 2.9.4 (2011-06-05)

• IPv6 support  Make the TCP implementation "protocol independent" by Florian Forster  and Stéphane Raimbault.
• Fix compilation on Windows 7 (x64) with MinGW/MSYS and GCC 4.
  Reported by Patsy Kaye.
• Documentation of libmodbus functions with AsciiDoc (man and HTML) by Stéphane  Raimbault
• Avoid an iteration in flush function
• New functions to send and receive raw requests (modbus_send_raw_request,  modbus_receive_confirmation)
• Fix flush function of TCP backend on Windows
• API changes for server/slave:
  * modbus_receive doesn't take socket/fd argument anymore
  * new function modbus_set_socket to set socket/fd
• API changes for timeout functions:
  * modbus_get_timeout_begin -> modbus_get_response_timeout
  * modbus_set_timeout_begin -> modbus_set_response_timeout
  * modbus_get_timeout_end -> modbus_get_byte_timeout
  * modbus_set_timeout_end -> modbus_set_byte_timeout
• Fix longstanding limitation of server to wait forever
• New functions modbus_set/get_serial_mode by Manfred Gruber and Stéphane  Raimbault for RS485 communications
• Improved recovery mode (see modbus_set_error_recovery documentation) for  data link and protocol errors.
• Fix compilation issue with Microsoft Visual Studio 2008.  Reported by Allan Cornet.

After many emails and the help of Wireshark, we have discovered modpoll uses the unit identifier as slave ID for TCP requests, according to the Modbus specs that's incorrect (cf page 23 of Modbus Messaging Implementation Guide v1.0b) but else the device drops the request! Two problems can sometimes lead to proper operation or Weintek company has designed this product on modpoll requests :-/

PS: The workaround was to set the slave ID with modbus_set_slave()