Maxim MAX7359 Key Switch Controller

modulename: max7359_keypad.ko

configname: CONFIG_KEYBOARD_MAX7359

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Keyboards
└─>Maxim MAX7359 Key Switch Controller
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
If you say yes here you get support for the Maxim MAX7359 Key
Switch Controller chip. This providers microprocessors with
management of up to 64 key switches

To compile this driver as a module, choose M here: the
module will be called max7359_keypad.

source code: