CHANGER_MANUAL_CALL
changer->flags |= CHANGER_MANUAL_CALL;
softc->changer->flags |= CHANGER_MANUAL_CALL;
if ((changer->flags & CHANGER_MANUAL_CALL) == 0) {
changer->flags &= ~CHANGER_MANUAL_CALL;
CHANGER_MANUAL_CALL;
softc->changer->flags |= CHANGER_MANUAL_CALL;
softc->changer->flags |= CHANGER_MANUAL_CALL;
softc->changer->flags |= CHANGER_MANUAL_CALL;