NVIDIA Tegra internal matrix keyboard controller support

modulename: tegra-kbc.ko

configname: CONFIG_KEYBOARD_TEGRA

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Keyboards
└─>Device Tree and Open Firmware support
└─>NVIDIA Tegra internal matrix keyboard controller support
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
Say Y here if you want to use a matrix keyboard connected directly
to the internal keyboard controller on Tegra SoCs.

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

source code: