Apple Cinema Display support

modulename: appledisplay.ko

configname: CONFIG_USB_APPLEDISPLAY

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>Apple Cinema Display support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here if you want to control the backlight of Apple Cinema
Displays over USB. This driver provides a sysfs interface.

source code:
drivers/usb/misc/appledisplay.c