What: /sys/class/leds//gt683r/mode Date: Jun 2014 KernelVersion: 3.17 Contact: Janne Kanniainen Description: Set the mode of LEDs. You should notice that changing the mode of one LED will update the mode of its two sibling devices as well. Possible values are: == ========= 0 normal 1 audio 2 breathing == ========= Normal: LEDs are fully on when enabled Audio: LEDs brightness depends on sound level Breathing: LEDs brightness varies at human breathing rate