#include <stdio.h>#include <errno.h>#include <sys/time.h>#include <sys/types.h>#include <fcntl.h>#include <unistd.h>#include <sys/ioctl.h>#include <rtl_fifo.h>#include "common.h"int main(){	int fd0;	int n;	int samp;		if ((fd0 = open("/dev/rtf0", O_RDONLY)) < 0) {		fprintf(stderr, "Error opening /dev/rtf0 %dn",fd0);		perror("perror");		exit(1);	}	while (1) {		n = read(fd0, &samp, sizeof(samp));		printf("%d\n", (int) samp);		fflush(stdout);	}	return 0;}