alex@duo > lsusb -t
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/16p, 480M
|__ Port 004: Dev 008, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 004: Dev 008, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 008: Dev 002, If 0, Class=Hub, Driver=hub/5p, 480M
|__ Port 001: Dev 004, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 001: Dev 004, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 002: Dev 010, If 0, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 002: Dev 010, If 1, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 002: Dev 010, If 2, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 004: Dev 007, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 004: Dev 007, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 004: Dev 007, If 2, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 005: Dev 006, If 0, Class=Human Interface Device, Driver=usbhid, 480M
|__ Port 013: Dev 003, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 013: Dev 003, If 1, Class=Wireless, Driver=btusb, 12M
/: Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/10p, 5000M
|__ Port 004: Dev 002, If 0, Class=Hub, Driver=hub/4p, 5000M
|__ Port 006: Dev 003, If 0, Class=Video, Driver=uvcvideo, 5000M
|__ Port 006: Dev 003, If 1, Class=Video, Driver=uvcvideo, 5000M
|__ Port 006: Dev 003, If 2, Class=Audio, Driver=snd-usb-audio, 5000M
|__ Port 006: Dev 003, If 3, Class=Audio, Driver=snd-usb-audio, 5000M
|__ Port 006: Dev 003, If 4, Class=Human Interface Device, Driver=usbhid, 5000M
|__ Port 006: Dev 003, If 5, Class=Communications, Driver=cdc_acm, 5000M
|__ Port 006: Dev 003, If 6, Class=CDC Data, Driver=cdc_acm, 5000M