The basic functionality of USB OHCI root hub is the foundation of the root hub design.

USB OHCI根集线器的基本功能是根集线器设计的基础。

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USB Device Tree Viewer is capable of querying the registry and enumerating host controllers, root hubs, as well as the attached devices to each port.

USB设备树查看器能够查询注册表，并列举主机控制器，集线器根，以及连接设备每个端口。

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