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staaldraad / ioctlfilter.c
Created March 21, 2017 13:56
Filters keycodes from R400 presenter in Linux
/* Grabs all input from Logitech R400 presenter and filters to ensure only certain keys are pressed.
* Ensures that only valid R400 keys are pressed and not rogue keys injected.
* Main logic for this found here: http://stackoverflow.com/questions/7668872/need-to-intercept-hid-keyboard-events-and-then-block-them
* Author: Etienne Stalmans <[email protected]>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>