pckbcintr_internal
return (pckbcintr_internal(sc->id, sc));
int pckbcintr_internal(struct pckbc_internal *, struct pckbc_softc *);
pckbcintr_internal(t, t->t_sc);
pckbcintr_internal(t->t_sc->id, t->t_sc);
(void)pckbcintr_internal(t, t->t_sc);