pckbd_hookup_bell  174 dev/isa/pcppi.c 	pckbd_hookup_bell(pcppi_pckbd_bell, sc);
pckbd_hookup_bell    5 dev/pckbc/pckbdvar.h void	pckbd_hookup_bell(void (*fn)(void *, u_int, u_int, u_int, int),