Hi Nils, Sorry for the late answer. > here is an updated version of Documentation/i2c/dev_interface > which just adds that there are two versions of i2c-dev.h > and that the userspace version is distributed with lm_sensors. It wasn't totally exact, so I reworded it and commited the change to i2c-CVS. Thanks for the suggestion. A similar change is on its way to Linux 2.6. Thanks, -- Jean Delvare