What: /sys/bus/i2c/devices/.../output_hvled[n] Date: April 2012 KernelVersion: 3.5 Contact: Johan Hovold <jhovold@gmail.com> Description: Set the controlling backlight device for high-voltage current sink HVLED[n] (n = 1, 2) (0, 1). What: /sys/bus/i2c/devices/.../output_lvled[n] Date: April 2012 KernelVersion: 3.5 Contact: Johan Hovold <jhovold@gmail.com> Description: Set the controlling led device for low-voltage current sink LVLED[n] (n = 1..5) (0..3).