Freescale MPR121 Touchkey

modulename: mpr121_touchkey.ko

configname: CONFIG_KEYBOARD_MPR121

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Freescale MPR121 Touchkey
In linux kernel since version 3 (release Date: 2011-07-21)  
Say Y here if you have Freescale MPR121 touchkey controller
chip in your system.

If unsure, say N.

To compile this driver as a module, choose M here: the
module will be called mpr121_touchkey.

source code: