usbd_get_endpoint
if ((usbd_get_endpoint(uaa->device, cnt, ugensa_xfer_config + 0) == NULL) ||
(usbd_get_endpoint(uaa->device, cnt, ugensa_xfer_config + 1) == NULL)) {
ep = usbd_get_endpoint(udev,
struct usb_endpoint *usbd_get_endpoint(struct usb_device *udev, uint8_t iface_index,