/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
        |__ Port 4: Dev 3, If 0, Class=Vendor Specific Class, Driver=ch341, 12M
        |__ Port 5: Dev 4, If 0, Class=Vendor Specific Class, Driver=cp210x, 12M
        |__ Port 7: Dev 5, If 0, Class=Wireless, Driver=btusb, 12M
        |__ Port 7: Dev 5, If 1, Class=Wireless, Driver=btusb, 12M
/:  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 3: Dev 18, If 0, Class=Wireless, Driver=btusb, 12M
        |__ Port 3: Dev 18, If 1, Class=Wireless, Driver=btusb, 12M