[1] 官方的USB 2.0规范
[2] USB in a Nutshell - Making sense of the USB standard
[3] USB Complete
[4] 【很好的学习Linux驱动的教材】Linux那些事儿系列[全][pdf]
[5] USB接口
[6] USB
[7] USB 2.0 A型、B型、Mini和Micro接口定义及封装
[8] Wireless USB Documents
[9] USB的NRZI编码
[10] USB 3.0
[11] USB in a NutShell - The Setup Packet
[12] Windows enumeration steps