usbd_req_set_idle
error = usbd_req_set_idle(uaa->device, NULL,
usbd_req_set_idle(sc->sc_udev, NULL, sc->sc_iface_index, 0, 0);
error = usbd_req_set_idle(uaa->device, NULL,
usb_error_t usbd_req_set_idle(struct usb_device *udev, struct mtx *mtx,