46     int ret = 0;  in read_thread()  local
48     while (current_device && ret >= 0) {  in read_thread()
51         ret = usb_device_bulk_transfer(current_device, read_ep, buffer, sizeof(buffer), 1000);  in read_thread()
52         if (ret < 0 && errno == ETIMEDOUT)  in read_thread()
53             ret = 0;  in read_thread()
54         if (ret > 0) {  in read_thread()
55             fwrite(buffer, 1, ret, stdout);  in read_thread()
65     int ret = 0;  in write_thread()  local
67     while (ret >= 0) {  in write_thread()
72         ret = usb_device_bulk_transfer(current_device, write_ep, line, strlen(line), 1000);  in write_thread()
88     int ret;  in usb_device_added()  local
157         ret = usb_device_control_transfer(device, USB_DIR_IN | USB_TYPE_VENDOR,  in usb_device_added()
159         if (ret < 0) {  in usb_device_added()
174                 ret = usb_device_control_transfer(device, USB_DIR_OUT | USB_TYPE_VENDOR,  in usb_device_added()
176                 if (ret < 0)  in usb_device_added()
177                     fprintf(stderr, "ACCESSORY_SET_AUDIO_MODE returned %d errno: %d\n", ret, errno);  in usb_device_added()
180                 ret = usb_device_control_transfer(device, USB_DIR_OUT | USB_TYPE_VENDOR,  in usb_device_added()
183                 if (ret < 0)  in usb_device_added()
184                     fprintf(stderr, "ACCESSORY_START returned %d errno: %d\n", ret, errno);  in usb_device_added()