/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/9p, 10000M/x2
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
    |__ Port 3: Dev 11, If 0, Class=Vendor Specific Class, Driver=rtl8xxxu, 480M
    |__ Port 6: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M
    |__ Port 7: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
    |__ Port 7: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
    |__ Port 9: Dev 4, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 2: Dev 12, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
    |__ Port 11: Dev 7, If 0, Class=Human Interface Device, Driver=usbhid, 12M
