/:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/16p, 480M
    |__ Port 001: Dev 002, If 0, Class=Vendor Specific Class, Driver=rtl8xxxu, 480M
    |__ Port 002: Dev 003, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
    |__ Port 002: Dev 003, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
    |__ Port 005: Dev 004, If 0, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 005: Dev 004, If 1, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 005: Dev 004, If 2, Class=Video, Driver=uvcvideo, 480M
    |__ Port 005: Dev 004, If 3, Class=Video, Driver=uvcvideo, 480M
    |__ Port 009: Dev 005, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 014: Dev 006, If 0, Class=Mass Storage, Driver=usb-storage, 480M
/:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/4p, 20000M/x2