libusb适配层，可以使早期针对libusb-0.1写的代码工作在libusb1.0上-A compatibility layer allowing applications written for libusb-0.1 to work with libusb-1.0. libusb-compat-0.1 attempts to look, feel, smell and walk like libusb-0.1. Do not attempt to install libu

实现视频图像采集，V4L2兼容性强，linux系统下测试通过。-Capture video images, V4L2 compatibility, linux system test