/* $NetBSD: tvctrl.c,v 1.8 2005/12/11 12:19:45 christos Exp $ */ #include <sys/cdefs.h> __RCSID("$NetBSD: tvctrl.c,v 1.8 2005/12/11 12:19:45 christos Exp $"); #include <sys/types.h> #include <sys/ioctl.h> #include <machine/iteioctl.h> #include <err.h> #include <stdio.h> #include <stdlib.h> int main(int, char *[]); int main(int argc, char *argv[]) { unsigned long num; unsigned char ctl; char *ep; if (argc < 2) { fprintf(stderr, "usage: %s control_number [...]\n", argv[0]); return 1; } while (argv++, --argc != 0) { num = strtoul(argv[0], &ep, 10); if (num > 255 || *ep != '\0') errx(1, "illegal number -- %s", argv[0]); ctl = num; if (ioctl(0, ITETVCTRL, &ctl)) err(1, "ioctl(ITETVCTRL)"); } return 0; } |