pckbc_attach_slot
int pckbc_attach_slot(struct pckbc_softc *, pckbc_slot_t);
pckbc_attach_slot(sc, gsc->sc_type);
if (pckbc_attach_slot(sc, PCKBC_KBD_SLOT, 0)) {
if (pckbc_attach_slot(sc, PCKBC_KBD_SLOT, 0)) {
if (pckbc_attach_slot(sc, PCKBC_AUX_SLOT, 0))
if (pckbc_attach_slot(sc, PCKBC_KBD_SLOT, 1))
int pckbc_attach_slot(struct pckbc_softc *, pckbc_slot_t, int);