centos man page for input_set_capability

INPUT_SET_CAPABILITY(9) 					  Input Subsystem					   INPUT_SET_CAPABILITY(9)

NAME
       input_set_capability - mark device as capable of a certain event

SYNOPSIS
       void input_set_capability(struct input_dev * dev, unsigned int type, unsigned int code);

ARGUMENTS
       dev
	   device that is capable of emitting or accepting event

       type
	   type of the event (EV_KEY, EV_REL, etc...)

       code
	   event code

DESCRIPTION
       In addition to setting up corresponding bit in appropriate capability bitmap the function also adjusts dev->evbit.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   INPUT_SET_CAPABILITY(9)