lsusb -t

/:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
    |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/3p, 12M
        |__ Port 1: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        |__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        |__ Port 3: Dev 5, If 0, Class=Wireless, Driver=btusb, 12M
        |__ Port 3: Dev 5, If 1, Class=Wireless, Driver=btusb, 12M
        |__ Port 3: Dev 5, If 2, Class=Vendor Specific Class, Driver=, 12M
        |__ Port 3: Dev 5, If 3, Class=Application Specific Interface, Driver=, 12M
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/8p, 480M
    |__ Port 5: Dev 2, If 0, Class=Vendor Specific Class, Driver=rt2870, 480M
    |__ Port 6: Dev 3, If 0, Class=Hub, Driver=hub/2p, 480M
        |__ Port 1: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M