36 [[noreturn]] static void Usage(int rc) {  in Usage()  argument
41     exit(rc);  in Usage()
102     int rc = libusb_init(&ctx);  in main()  local
103     if (rc != LIBUSB_SUCCESS) {  in main()
104         PrintLibusbError(rc, "error: failed to initialize libusb");  in main()
125         rc = libusb_get_active_config_descriptor(device, &config_desc);  in main()
126         if (rc != 0) {  in main()
127             PrintLibusbError(rc, "warning: failed to get config descriptor");  in main()
141             rc = libusb_open(device, &device_handle);  in main()
142             if (rc != 0) {  in main()
143                 PrintLibusbError(rc, "warning: failed to open device");  in main()
148             rc = libusb_get_string_descriptor_ascii(device_handle, device_desc.iSerialNumber,  in main()
152             if (rc < 0) {  in main()
153                 PrintLibusbError(rc, "warning: failed to get device serial");  in main()
157             std::string serial(buf, buf + rc);  in main()
176         rc = libusb_reset_device(device_handle);  in main()
179         if (rc == 0 || rc == LIBUSB_ERROR_NOT_FOUND) {  in main()
182             PrintLibusbError(rc, "%s: failed to reset", serial.c_str());  in main()