sysfs interface for Texas Instruments lm3639 backlight + flash led driver chip ------------------------------------------------------------------------------ What: /sys/class/backlight//bled_mode Date: Oct, 2012 KernelVersion: v3.10 Contact: dri-devel@lists.freedesktop.org Description: (WO) Write to the backlight mapping mode. The backlight current can be mapped for either exponential (value "0") or linear mapping modes (default).