test.c

#include <stdio.h>
#include <stdlib.h>
#include <linux/input.h>
#include <unistd.h>

int main(void)
{
	for (;;) {
		struct input_event event;

		if (read(0, &event, sizeof(event)) != sizeof(event)) {
			exit(EXIT_FAILURE);
		}
		switch(event.type) {
			case EV_ABS:
				switch(event.code){
					case ABS_MT_POSITION_X:
						printf("X: %d\n",event.value);
						break;
					case ABS_MT_POSITION_Y:
						printf("Y: %d\n",event.value);
						break;
					case ABS_MT_PRESSURE:
						printf("Touch Pressure: %d\n",event.value);
						break;
					default:
						printf("Event Code: %x, Event Value: %d\n",event.code,event.value);
						break;
				}
				break;
			default:
				break;
		}
	}
}