Disable calls against parts of /sys filesystem that don't exist with 3.12.
Disable calls against parts of /sys filesystem that don't exist with 3.12.

Signed-off-by: Jon Seymour <13015cd9b4bd75fb137ba1a80810e07fcd27c10e@gmail.com>

ninjasphere/sphere-leds,ninjasphere/sphere-leds