[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