/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/5p, 12M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/3p, 12M
        |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=btusb, 12M
        |__ Port 1: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
        |__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=btusb, 12M
        |__ Port 1: Dev 3, If 3, Class=Application Specific Interface, Driver=, 12M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/7p, 12M
    |__ Port 1: Dev 2, If 2, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 1: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 5: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/5p, 480M
    |__ Port 5: Dev 3, If 0, Class=Mass Storage, Driver=usb-storage, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/7p, 480M
    |__ Port 4: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 4: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 4: Dev 3, If 2, Class=Vendor Specific Class, Driver=, 480M