在此枚举，你需要有一个为每个功能添加到您的界面进入。
In this enum, you need to have an entry for every function you add to your interface.
当我们将设备连接到主机设备，枚举过程会发生，在此过程中，主机将提供一个独特的地址到新连接的设备。
When we connect a device to the host the device, enumeration process will happen, at the end of this process, the host will supply a unique address to the newly connected device.
一些相关公司的名称在此逐一枚举也没有多大意思。
The name of a number of related companies listed in this 11 have little meaning.
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