USB视频设备(Video Devices)类相关资料

包括以下三个文档： Universal Serial Bus Device Class Definition for Video Devices. Universal Serial Bus Device Class Definition for Video Devices: Video Device Examples; Universal Serial Bus Device Class Definition for Video Devices: Frequently Asked Questions (FAQ); 学习写USB摄像头设备的资料，包含视频设备类的定义、视频设备类的例子以及常见问题解答。