The device at function 0 also needs to be enabled or the kernel will ignore all other functions. 00:15.0 DMA controller: Intel Corporation Lynx Point-LP Low Power Sub-System DMA (rev 03) 00:15.1 Serial bus controller [0c80]: Intel Corporation Lynx Point-LP I2C Controller #0 (rev 03) 00:15.2 Serial bus controller [0c80]: Intel Corporation Lynx Point-LP I2C Controller #1 (rev 03) Change-Id: I0e1bc7bb719756496c46664d66dc1b1cf2f4d1ba Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/51370 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/4171 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>