Google Hammer Keyboard

modulename: hid-google-hammer.ko

configname: CONFIG_HID_GOOGLE_HAMMER

Linux Kernel Configuration
└─>Device Drivers
└─>HID support
└─>Special HID drivers
└─>Google Hammer Keyboard
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y here if you have a Google Hammer device.

source code: