Hi Max: * Maximilian Ott <max at semandex.net> [2004-12-30 11:07:07 -0500]: > Thanks, I'll check it out. BTW, what 2.6 kernel should I use? Should I go > for the latest? Sure, (unless you have a specific reason not too) try Linus' 2.6.10. All I2C and sensors patches go through Greg K-H, then to the -mm kernel, and from there to Linus' tree. But the pace is pretty quick; the difference between the -mm and Linus' trees (wrt I2C/sensors) always seems small. > > Hi Max: > > > > * Maximilian Ott <max at semandex.net> [2004-12-27 22:08:19 -0500]: > > > I'm prototyping an appliance type box based on the EPIA-TC board > > > > > (http://www.viaembedded.com/product/epia_tc_spec.jsp?motherboa > > rdId=201). > > > This board supposedly has a I2C bus accessible on a connector. > > > > > > I also built a small board with a few LEDs driven by a TI TPIC2810 > > > (8-BIT LED DRIVER WITH I2C INTERFACE) which I would like to > > hook up to the > > > motherboard and control from a user-space process. The > > whole thing will run > > > a 2.6 linux kernel. > > > > > > Could somebody please give me a few pointers to get started. > > > > It sounds like you already know about I2C and probably SMBus as well. > > > > On Linux, you'll need a bus driver for your board. Some VIA chipsets > > are already supported... you could grab the freshly released 2.9.0 of > > the lm_sensors2 package and build the userspace parts (kernel > > 2.6 already > > has the most up-to-date kernel parts). Then try 'sensors-detect'. > > > > Assuming you have a working bus driver, the easiest way to access it > > for prototyping would be the i2c /dev interface. This requires the > > module i2c-dev (if you ran 'sensors-detect' OK, you already have it). > > > > Take a look at i2c-dev.h in the kernel headers if you want to > > program in > > in C. For prototyping, it would be much easier to re-use the Perl > > bindings which can be found in sensors-detect. Or if you > > prefer Python, > > lucky you: I just now published a module for that. The announcement > > hasn't appeared in the mail archive yet, but you will eventually see > > it near the bottom of this page (which is good to browse anyway): > > > > http://archives.andrew.net.au/lm-sensors/ -- Mark M. Hoffman mhoffman at lightlink.com
