摘要：
原始链接1：http://www.usb.org/developers/defined_class （USB官方论坛）原始链接2：http://www.baiheee.com/Documents/090518/090518112619.htm （百合电子）Home>Developers>Defined 1.0 Class CodesUSB Class CodesDecember 7, 2011USB defines class code information that is used to identify a device’s functionality and to nomi 阅读全文
