/// <reference types="w3c-web-usb" />
import { OperationResult } from '../Tethr';
import { TethrPTPUSB } from './TethrPTPUSB';
/**
 * Try to initialize the given usb device as a PTP camera.
 * @param usb The USB device to initialize
 * @returns The initialized TethrPTPUSB object or null if the device is not a PTP camera
 */
export declare function initTethrUSBPTP(usb: USBDevice): Promise<OperationResult<TethrPTPUSB>>;
export { TethrPTPUSB };