RMI4 Function 12 (2D pointing)

configname: CONFIG_RMI4_F12

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>RMI4 Function 12 (2D pointing)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y here if you want to add support for RMI4 function 12.

Function 12 provides 2D multifinger pointing for touchscreens and
touchpads. For sensors that support relative pointing, F12 also
provides mouse input.