USB大全，USB方面的经典书籍，PDF格式的，是USB协议方面的入门级书籍。,USB Guinness, USB connection of the classic book, PDF format is the USB agreements of entry-level books.

USB complete很经典的USB协议的书，开发USB的人员这可是难得的好的参考书。-USB complete the USB protocol is a classic book, the development of USB but the staff that rare good reference books.