USBREV_3_1
sc->sc_bus.ub_revision = USBREV_3_1;
sc->sc_bus.ub_revision = USBREV_3_1;
sc->sc_bus.ub_revision = USBREV_3_1;
sc->sc_bus.ub_revision = USBREV_3_1;
case USBREV_3_1:
case USBREV_3_1: