/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 2: Dev 90, If 0, Class=Communications, Driver=cdc_acm, 12M
        |__ Port 2: Dev 90, If 1, Class=CDC Data, Driver=cdc_acm, 12M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
        |__ Port 1: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 6: Dev 66, If 0, Class=Hub, Driver=hub/4p, 480M
            |__ Port 1: Dev 67, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
            |__ Port 1: Dev 67, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M

