实现了监控USB信息，实时捕捉，提供源码，便于集成-Monitor USB information, real-time capture, source, and easy integration

这个文件是在TQ2440上使用usb摄像头，并且能在LCD显示屏上正显示图像，经过测试已经成功运行！-This file is used in TQ2440 usb camera, and the image being displayed on the LCD monitor, has been run successfully tested!