146     int childRet = OpenDeviceMyNeed(hUSB);  in DetectMyNeed()  local
147     if (childRet < 0) {  in DetectMyNeed()
148         WRITE_LOG(LOG_FATAL, "DetectMyNeed OpenDeviceMyNeed childRet:%d", childRet);  in DetectMyNeed()
297     int childRet = 0;  in CheckDescriptor()  local
309 …childRet = libusb_get_string_descriptor_ascii(hUSB->devHandle, desc.iSerialNumber, (uint8_t *)seri…  in CheckDescriptor()
311     if (childRet < 0) {  in CheckDescriptor()
470     int childRet = 0;  in UsbToHdcProtocol()  local
473         childRet = select(fd + 1, nullptr, &fdSet, nullptr, &timeout);  in UsbToHdcProtocol()
474         if (childRet <= 0) {  in UsbToHdcProtocol()
482             WRITE_LOG(LOG_FATAL, "select error:%d [%s][%d]", errno, buf, childRet);  in UsbToHdcProtocol()
485 …      childRet = send(fd, reinterpret_cast<const char *>(appendData) + index, dataSize - index, 0);  in UsbToHdcProtocol()
486         if (childRet < 0) {  in UsbToHdcProtocol()
497         index += childRet;  in UsbToHdcProtocol()
511     int childRet = 0;  in USBBulkCallback()  local
525         childRet = libusb_submit_transfer(transfer);  in USBBulkCallback()
526         if (childRet != 0) {  in USBBulkCallback()
527             WRITE_LOG(LOG_FATAL, "USBBulkCallback2 failed, ret:%d", childRet);  in USBBulkCallback()
541     int childRet = 0;  in SubmitUsbBio()  local
558         childRet = libusb_submit_transfer(ep->transfer);  in SubmitUsbBio()
560         if (childRet < 0) {  in SubmitUsbBio()
561             WRITE_LOG(LOG_FATAL, "SubmitUsbBio libusb_submit_transfer failed, ret:%d", childRet);  in SubmitUsbBio()
582         int childRet = 0;  in BeginUsbRead()  local
587             nextReadSize = (childRet < hUSB->wMaxPacketSizeSend ?  in BeginUsbRead()
588                                        hUSB->wMaxPacketSizeSend : std::min(childRet, bulkInSize));  in BeginUsbRead()
589             childRet = SubmitUsbBio(hSession, false, hUSB->hostBulkIn.buf, nextReadSize);  in BeginUsbRead()
590             if (childRet < 0) {  in BeginUsbRead()
591                 WRITE_LOG(LOG_FATAL, "Read usb failed, ret:%d", childRet);  in BeginUsbRead()
594 …childRet = SendToHdcStream(hSession, reinterpret_cast<uv_stream_t *>(&hSession->dataPipe[STREAM_MA…  in BeginUsbRead()
595                                        hUSB->hostBulkIn.buf, childRet);  in BeginUsbRead()
596             if (childRet < 0) {  in BeginUsbRead()
597                 WRITE_LOG(LOG_FATAL, "SendToHdcStream failed, ret:%d", childRet);  in BeginUsbRead()
697             int childRet = OpenDeviceMyNeed(hUSB);  in FindDeviceByID()  local
698             WRITE_LOG(LOG_DEBUG, "OpenDeviceMyNeed childRet:%d", childRet);  in FindDeviceByID()
699             if (!childRet) {  in FindDeviceByID()