494     auto *ep = reinterpret_cast<HostUSBEndpoint *>(transfer->user_data);  in USBBulkCallback()  local
495     std::unique_lock<std::mutex> lock(ep->mutexIo);  in USBBulkCallback()
503         if (!ep->bulkInOut && transfer->actual_length != transfer->length) {  in USBBulkCallback()
519     ep->isComplete = true;  in USBBulkCallback()
520     ep->cv.notify_one();  in USBBulkCallback()
529     HostUSBEndpoint *ep = nullptr;  in SubmitUsbBio()  local
533         ep = &hUSB->hostBulkOut;  in SubmitUsbBio()
536         ep = &hUSB->hostBulkIn;  in SubmitUsbBio()
539     ep->isComplete = false;  in SubmitUsbBio()
541         std::unique_lock<std::mutex> lock(ep->mutexIo);  in SubmitUsbBio()
542 …libusb_fill_bulk_transfer(ep->transfer, hUSB->devHandle, ep->endpoint, buf, bufSize, USBBulkCallba…  in SubmitUsbBio()
544         childRet = libusb_submit_transfer(ep->transfer);  in SubmitUsbBio()
550         ep->cv.wait(lock, [ep]() { return ep->isComplete; });  in SubmitUsbBio()
551         if (ep->transfer->status != 0) {  in SubmitUsbBio()
552             WRITE_LOG(LOG_FATAL, "SubmitUsbBio transfer failed, status:%d", ep->transfer->status);  in SubmitUsbBio()
555         ret = ep->transfer->actual_length;  in SubmitUsbBio()