AD7877 based touchscreens

modulename: ad7877.ko

configname: CONFIG_TOUCHSCREEN_AD7877

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Touchscreens
└─>AD7877 based touchscreens
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
Say Y here if you have a touchscreen interface using the
AD7877 controller, and your board-specific initialization
code includes that in its table of SPI devices.

If unsure, say N (but it's safe to say "Y").

To compile this driver as a module, choose M here: the
module will be called ad7877.

source code: