pckbd_bell        176 dev/pckbc/pckbd.c void	pckbd_bell(u_int, u_int, u_int, int);
pckbd_bell        616 dev/pckbc/pckbd.c 		pckbd_bell(d->pitch, d->period, d->volume, 0);
pckbd_bell        711 dev/pckbc/pckbd.c 	pckbd_bell(pitch, period, volume, 1);