RMI4 Function 34 (Device reflash)

configname: CONFIG_RMI4_F34

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>RMI4 Function 34 (Device reflash)
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Say Y here if you want to add support for RMI4 function 34.

Function 34 provides support for upgrading the firmware on the RMI4
device via the firmware loader interface. This is triggered using a
sysfs attribute.