The USB configuration of a device can be thought of as a classification of physical functionality.
一个设备的USB配置可以看作是身体的功能分类。
A USB device may have one or more configurations, which are described by their corresponding configuration descriptors.
一台usb设备可以有一个或者多个配置,这由它们相应的配置描述符所描述。
To analyse the configuration process between OS protocol driver and USB bus device and the matching process between driver and the correspond device function interface.
分析出系统协议栈与USB 总线设备的配置交互过程以及设备驱动程序与设备对应接口的匹配过程。
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