281 static void ctrl_xfer_callback(usb_device_handle_t dev_hdl, urb_t *urb, void *arg)  in ctrl_xfer_callback()  argument
283     assert(urb->usb_host_client != NULL);  in ctrl_xfer_callback()
285     client_t *client_obj = (client_t *)urb->usb_host_client;  in ctrl_xfer_callback()
288     TAILQ_INSERT_TAIL(&client_obj->dynamic.done_ctrl_xfer_tailq, urb, tailq_entry);  in ctrl_xfer_callback()
591                 urb_t *urb = hcd_urb_dequeue(ep_obj->constant.pipe_hdl);  in _handle_pending_ep()  local
592                 while (urb != NULL) {  in _handle_pending_ep()
593                     urb->transfer.callback(&urb->transfer);  in _handle_pending_ep()
595                     urb = hcd_urb_dequeue(ep_obj->constant.pipe_hdl);  in _handle_pending_ep()
746             urb_t *urb = TAILQ_FIRST(&client_obj->dynamic.done_ctrl_xfer_tailq);  in usb_host_client_handle_events()  local
747             TAILQ_REMOVE(&client_obj->dynamic.done_ctrl_xfer_tailq, urb, tailq_entry);  in usb_host_client_handle_events()
751             urb->transfer.callback(&urb->transfer);  in usb_host_client_handle_events()
1264     urb_t *urb = urb_alloc(data_buffer_size, 0, num_isoc_packets);  in usb_host_transfer_alloc()  local
1265     if (urb == NULL) {  in usb_host_transfer_alloc()
1268     *transfer = &urb->transfer;  in usb_host_transfer_alloc()
1277     urb_t *urb = __containerof(transfer, urb_t, transfer);  in usb_host_transfer_free()  local
1278     urb_free(urb);  in usb_host_transfer_free()