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




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