#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <linux/input.h>
#include <sys/ioctl.h>

#ifndef EVIOCSREP
#define EVIOCSREP _IOW('E', 0x03, int[2])
#endif

/* compile with gcc -o setspeed setspeed.c */

int main(int argc, char** argv) {
    int retval = 0;
    int fd = 0;
    int rep[2];

    rep[1] = 2500; // delay
    rep[1] = 1000; // repeat rate

    if ((fd = open( "/dev/input/event2", O_RDWR )) < 0) {
        printf("unable to access /dev/input/event2, exiting..\n");
        exit(1);
    }
    if (ioctl(fd, EVIOCSREP, rep)) {
        perror("unable to set delay and repeat rate for input devices");
        exit(1);
    }

    close(fd);
}