AnalogicTech AAT2870 Backlight

modulename: aat2870_bl.ko

configname: CONFIG_BACKLIGHT_AAT2870

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Backlight & LCD device support
└─>AnalogicTech AAT2870 Backlight
In linux kernel since version 3.1 (release Date: 2011-10-24)  
If you have a AnalogicTech AAT2870 say Y to enable the
backlight driver.

source code:
drivers/video/backlight/aat2870_bl.c