I am trying to write a custom syscall handler that manipulates the LEDs on a BeagleBone Black board. I have gone through the kernel LED API (include/leds.h), but I am unable to find anything that'd give me a handle to the available LED devices or some other mechanism to manipulate (on/off/toggle) them. Most of the functions seem to require a led_classdev object, but I can't find a way of getting one.
I can do this from userspace using the /sys/class/leds/... interface. But I want to do something similar from kernel space. I am open to hard-coding any device names specific to BeagleBone Black as portability is not an issue.
