Downloading i2c and lm_sensors

WARNING: IBM Thinkpad users should not install LM Sensors. Full story is available here. If you wish to help (laptop donation, technical help, testing), please  let us know.

This software is OSI Certified open source software. OSI Certified is a certification mark of the  Open Source Initiative.

Available Releases

i2c and lm_sensors v2.9.2

This is the latest release of the current project, for Linux 2.4.10+. This is a stable release with support for most devices. Userspace tools support 2.4 and 2.6 kernels. Modules will not compile on 2.6 kernels (use those coming with the kernel itself).Note that LM Sensors 2.9.2 requires I2C 2.9.0 or newer. See the I2C changes document for details of changes in I2C 2.9.2.

Note that this release supersedes, and is not compatible with, 2.8.x releases. The 2.8.x series is considered deprecated and unsupported. Third party i2c driver authors are invited to drop support for this broken series.

PGP signatures are made by  Philip Edelbrock using a DSS key compatible with  GnuPG.

i2c-2.9.2 (140kB)

 i2c-2.9.2.tar.gz ( PGP signature)

Additional patches:

See below for an i2c-2.9.2 Linux kernel patch.

Linux 2.6 users do not need to get this i2c package, it's already part of the kernel tree.

lm_sensors-2.9.2 (848kB)

 lm_sensors-2.9.2.tar.gz ( PGP signature)

 lm_sensors-2.9.2.tar.gz (FTP)

 lm_sensors-2.9.2.tar.gz (HTTP mirror)

i2c and lm_sensors v2.7.0

This is the last 2.2/2.3 kernel-compatible release (including 2.4 kernels through 2.4.9). Note that LM Sensors 2.7.0 requires I2C 2.7.0.

i2c-2.7.0 (120kB)

 i2c-2.7.0.tar.gz ( PGP signature)

lm_sensors-2.7.0 (582kB)

 lm_sensors-2.7.0.tar.gz ( PGP signature)

 lm_sensors-2.7.0.tar.gz (FTP)

 lm_sensors-2.7.0.tar.gz (HTTP mirror)

lm_sensors v2.4.5

This is the last 2.0 kernel-compatible release.

lm_sensors-2.4.5 (268kB)

 lm_sensors-2.4.5.tar.gz ( PGP Signature)

 lm_sensors-2.4.5.tar.gz (FTP)

 lm_sensors-2.4.5.tar.gz (HTTP mirror)

lm_sensors v1.4.12

This is the latest stable release of the original project. This release is in a "tested and deemed stable" status. This is a simple version which is well tested and supports some common hardware health monitoring chips. This may not work on newer hardware or kernels. We no longer support this code.

lm_sensors-1.4.12.tar.gz (75kB)

 lm_sensors-1.4.12.tar.gz ( PGP signature)

 lm_sensors-1.4.12.tar.gz (FTP)

 lm_sensors-1.4.12.tar.gz (HTTP mirror)

Other Downloads

• Users who have a monolithic (as opposed to modular) kernel or simply want some i2c drivers built-in will need to patch their kernel tree. A minor incompatibility issue exists with two drivers (bttv and tvmixer) in the Linux 2.4.23 to 2.4.28 kernels. A complete installation guide with patches is available  here.

• 2.4 and 2.5 kernel patches were made available by Albert Cranford  here (out of date).

• Steven J. Hill also has patches for the 2.4.21 and 2.4.22 kernels  here (untested).

•  RPMs for Red Hat 6.1, Red Hat 6.2 and Mandrake 7.0 are available  here. Warning, these are very old.

• RPMs for Red Hat 7.3, 8.0 and 9, and Fedora Core 1, were made available by Axel Thimm on his  ATrpms website. You need to use the  i2c/lm_sensors-enabled kernels from the same site.

• You can access all released files  here.

Subversion Repository

Anonymous access to our Subversion repository (SVN) is available. This means that users can have direct access to up-to-the-minute code.

Note that the code in the repository may be under active development. You should always download and install i2c SVN to work with lm_sensors2 SVN. Also note that lm_sensors and i2c SVN may not be compatible with i2c in your kernel, so you must not have any i2c module compiled-in your kernel, and you must unload any existing i2c bus and chip module and use the ones built from SVN instead.

Development for 2.5/2.6 kernels is taking place directly in the kernel using BitKeeper?/GIT. Do not use SVN for 2.5/2.6 kernels, it will not work.

We presume that you have  Subversion installed on your machine. To check out a working copy of the code for this project use the following commands:

svn checkout http://lm-sensors.org/svn/lm-sensors/trunk/i2c/

svn checkout http://lm-sensors.org/svn/lm-sensors/trunk/lm_sensors2/

Note: This will give you the code that is compatible with kernels 2.4.10 and later only.

Do not use the lk2-4 branch of i2c SVN, it is not being used anymore. Active development is done in trunk again.

To update the code, do a svn update from within the i2c or lm_sensors2 directory. Please read the README and INSTALL files of your working copy for how to build the code. Also read the related files in the 'doc' directory for info regarding the different bus and chip drivers. Lastly, you can use the regular svn commands on the files (like cvs log [filename]) to see the comments made by the developers as changes were made.

If you're not familiar with the use of Subversion we recommend the excellent  Subversion book which is a valuable resource.

Commits to the CVS repository are notified on the  lm-sensors-commit mailing-list. Feel free to subscribe if you want to be informed of the changes made to the i2c and lm_sensors2 repositories.

Browse the Distribution

Choose the links below to view the current development code:

• i2c (source code and documentation)

• lm_sensors2 (source code and documentation)

• lm_sensors (source code and documentation)
  Warning: This part of the project is very, very old and is unsupported.

Nightly CVS snapshots

Note: We're currently switching away from CVS to Subversion. Up to now there are no snapshots available from the subversion repository. Hence the CVS snapshots are still provided as a work-around. However, the CVS repository is not updated any longer, so please be aware that you won't see all of the changes that eventually are available in the Subversion repository.

•  i2c

•  lm_sensors2