Sparse keymap support library

modulename: sparse-keymap.ko

configname: CONFIG_INPUT_SPARSEKMAP

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Sparse keymap support library
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
Say Y here if you are using a driver for an input
device that uses sparse keymap. This option is only
useful for out-of-tree drivers since in-tree drivers
select it automatically.

If unsure, say N.

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

source code: