> that helps indeed, thanks very much. > why is this not mentioned in > linux-2.6.x/Documentation/i2c/dev-interface ? > > while it is mentioned in > http://www2.lm-sensors.nu/~lm78/cvs/lm_sensors2/doc/developers/applications No idea, most probably because nobody updated the dev-interface document since the i2c-dev header file was split. If you submit a patch updating it, I'll review it and have it applied. Thanks, -- Jean Delvare