Some phones and tablets support USB camera, others do not. This app is designed to test this feature. Simply start this app , and plug your USB camera. If your device support this camera, you will see a popup window. Click OK, you will see a display of full features of this camera, such as Device Class, Packet Size, Protocol etc. If not support, your device will not respond to the camera.
this is to detect if the mobile device support this USB camera or not