centos man page for input_mt_init_slots

INPUT_MT_INIT_SLOTS(9)						  Input Subsystem					    INPUT_MT_INIT_SLOTS(9)

NAME
       input_mt_init_slots - initialize MT input slots

SYNOPSIS
       int input_mt_init_slots(struct input_dev * dev, unsigned int num_slots, unsigned int flags);

ARGUMENTS
       dev
	   input device supporting MT events and finger tracking

       num_slots
	   number of slots used by the device

       flags
	   mt tasks to handle in core

DESCRIPTION
       This function allocates all necessary memory for MT slot handling in the input device, prepares the ABS_MT_SLOT and ABS_MT_TRACKING_ID
       events for use and sets up appropriate buffers. Depending on the flags set, it also performs pointer emulation and frame synchronization.

       May be called repeatedly. Returns -EINVAL if attempting to reinitialize with a different number of slots.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						    INPUT_MT_INIT_SLOTS(9)