On Thu, Oct 23, 2014 at 08:15:53PM +0200, Paul Bolle wrote:
I'm afraid I can't really help you here, sorry. That is, except for the obvious question whether this is a regression (ie, do releases v3.17 or earlier show something in /sys/bus/i2c/devices/?) or a configuration issue (perhaps a distribution provided kernel does show what you want).
I didn't have any devices drivers loaded for things that had i2c devices. I loaded the i915 gpu driver and now I see stuff. root@vega:/home/john/linux# i2cdetect -l i2c-0 i2c i915 gmbus ssc I2C adapter i2c-1 i2c i915 gmbus vga I2C adapter i2c-2 i2c i915 gmbus panel I2C adapter i2c-3 i2c i915 gmbus dpc I2C adapter i2c-4 i2c i915 gmbus dpb I2C adapter i2c-5 i2c i915 gmbus dpd I2C adapter i2c-6 i2c DPDDC-B I2C adapter