Symbol: WSKBDIO_SETBACKLIGHT
sbin/wsconsctl/keyboard.c
236
if (ioctl(fd, WSKBDIO_SETBACKLIGHT, &kbl) == -1) {
sys/dev/wscons/wskbd.c
1075
case WSKBDIO_SETBACKLIGHT:
sys/dev/wscons/wskbd.c
1255
case WSKBDIO_SETBACKLIGHT: