#include <linux/types.h>
#include <linux/input.h>
#include <linux/hidraw.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>

int main(int argc, char **argv)
{
	int fd;
	int i, res = 0;
	char buf[256];

	/* Open the Device with non-blocking reads. In real life,
	   don't use a hard coded path; use libudev instead. */
	fd = open("/dev/hidraw0", O_RDWR|O_NONBLOCK);

	if (fd < 0) {
		perror("Unable to open device");
		return 1;
	}

	memset(buf, 0x0, sizeof(buf));

	switch (argv[1][0]) {
		case '0':
			break;
		case '1':
			buf[2] = 0xff;
			break;
		case '2':
			buf[3] = 0xff;
			break;
		case '3':
			buf[4] = 0xff;
			break;
		case '4':
			buf[5] = 0xff;
			break;
		default:
			printf("Please specify 0 ... 4 as single argument.\n");
	}

	/* Send a Report to the Device */
	buf[0] = 0x00; /* Report Number */
	buf[1] = 0x00; /* Report ID */
	//buf[2] = 0x01; /* Buzzer 1 */
	//buf[3] = 0x00; /* Buzzer 2 */
	//buf[4] = 0x00; /* Buzzer 3 */
	//buf[5] = 0x01; /* Buzzer 4 */
	res = write(fd, buf, 6);
	if (res < 0) {
		printf("Error: %d\n", errno);
		perror("write");
	} else {
		//printf("write() wrote %d bytes\n", res);
	}

	close(fd);
	return 0;
}