This is regarding ticket #1126. The suggestion to turn on CONFIG_I2C_ALGOBIT worked; thanks. So it appears to be a documentation bug instead of a code/config file bug. It makes sense to have to turn something on like that before you can see the option, but IMHO it's very important to tell the users that they need to! None of the following sources of information say anything about having to enable bit-banging devices when compiling the kernel to use this driver: http://secure.netroedge.com/~lm78/supported.html http://www2.lm-sensors.nu/~lm78/cvs/lm_sensors2/doc/busses/i2c-via sensors-detect Maybe that should be stated directly on the Supported Chips and Drivers page, but I think ideally it should go on the per-driver doc page, and have the Supported Chips and Drivers page hyperlink to those, so that we know there's more info available. (I didn't even know about the driver-specific pages until just now.) Jason B. -- You only need to stay 15 minutes ahead of the others for them to think that you are a genius. -- Slashdot post (http://tinyurl.com/5cv5)