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善于使用Linux中的help
lsusb --help
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
|__ Port 2: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 2: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
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原文地址:http://blog.csdn.net/oimchuan/article/details/45031303