LIBUSB_SPEED_LOW  875 third_party/libusb/src/libusb/os/darwin_usb.c     case kUSBDeviceSpeedLow: dev->speed = LIBUSB_SPEED_LOW; break;
LIBUSB_SPEED_LOW  875 third_party/libusb/src/libusb/os/linux_usbfs.c 			case     1: dev->speed = LIBUSB_SPEED_LOW; break;
LIBUSB_SPEED_LOW 1166 third_party/libusb/src/libusb/os/windows_usb.c 		case 0: dev->speed = LIBUSB_SPEED_LOW; break;