> > > But directory /sys/class/hwmon is empty, and sensors -s does not > > > work! > > > > Does the device show under /sys/bus/i2c/devices? > > /sys/bus/i2c/devices is empty too OK, so the problem you have is not related to the hwmon class code. The I2C chip was not properly detected in the first place. > but there is simlink to device in /sys/class/i2c-dev/i2c-0 This means that the bus driver (i2c-piix4) works. This doesn't mean that any device on that bus was properly recognized. > > Does "sensors" (without -s) work? > > no, it does not (strace shows it tries to read /sys/class/hwmon and exits > with error) This is expected if the hardware monitoring device wasn't properly detected. Which version of lm_sensors are you using? Which motherboard is this? Any message in the logs when loading the w83781d driver? Pleas provide the output of: i2cdump 0 0x2d b Thanks, -- Jean Delvare
