Samsung Q10 Extras

modulename: samsung-q10.ko

configname: CONFIG_SAMSUNG_Q10

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>Samsung Q10 Extras
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This driver provides support for backlight control on Samsung Q10
and related laptops, including Dell Latitude X200.

source code:
drivers/platform/x86/samsung-q10.c