USB协议简介(介绍详细,通俗易懂,值得参考):https://blog.youkuaiyun.com/songze_lee/article/details/77658094
USB概念小结:https://blog.youkuaiyun.com/baiyibin0530/article/details/78686104
USB协议简介(介绍详细,通俗易懂,值得参考):https://blog.youkuaiyun.com/songze_lee/article/details/77658094
USB概念小结:https://blog.youkuaiyun.com/baiyibin0530/article/details/78686104