Hi Alex, On Sat, 1 Sep 2007 08:54:16 +0000 (GMT), Alex wrote: > My pc motherboard (DFI Infinity) is equipped with a PCA9540 > I2C device. > I use Ubuntu 7.04 with original kernel 2.6.20 > > sensor-detect detects it but module is not present in kernel > tree (in drivers/i2c/chips/ ) but there is a pca9539.c (useless). The PCA9540 is not a sensor chip, it's an I2C bus multiplexer. It's very difficult to detect, BTW, so it is entirely possible that sensors-detect got it wrong. Do you have any reason to believe that you really have a PCA9540 on your system? > I've found this post > http://lists.lm-sensors.org/pipermail/lm-sensors/2006-March/015743.html > that propose the code for pca954x . > Just now I'm trying to recompile my kernel with this patch. > > There is a chance that code for pca954x will be included in future ? This is a question for the i2c list. -- Jean Delvare