A program that just presses and releases the Esc key

egrep "^(N|H)" /proc/bus/input/devices

ls -lh /dev/input/event5
crw-rw---- 1 root input 13,69 August 24 18:33 /dev/input/event5

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

void write_key_event(int code, int value, int fd)
{
        struct input_event key_event;

        gettimeofday(&key_event.time, NULL);
        key_event.type = EV_KEY;
        key_event.code = code;
        key_event.value = value;
        write(fd, &key_event, sizeof(key_event));
}

int main(void)
{
        write_key_event(KEY_ESC, 1, 1);
        write_key_event(KEY_ESC, 0, 1);

        //int i = 0;
        //int keys[] = { KEY_A ,KEY_B ,KEY_C };
        //while (keys[i] != '\0' ) {
        //      write_key_event(keys[i], 1, 1);
        //      write_key_event(keys[i], 0, 1);
        //      i++;
        //}

        //i = 0;
        //write_key_event(KEY_LEFTSHIFT, 1, 1);
        //while (keys[i] != '\0' ) {
        //      write_key_event(keys[i], 1, 1);
        //      write_key_event(keys[i], 0, 1);
        //      i++;
        //}
        //write_key_event(KEY_LEFTSHIFT, 0, 1);

        exit(EXIT_SUCCESS);
}

gcc -o write.o write.c
./write.o > /dev/input/event5

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