ubuntu@ubuntu:~$ lsusb; lsusb -t
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 1bcf:08a6 Sunplus Innovation Technology Inc. Gaming Mouse
Bus 003 Device 004: ID 0e6a:02c0 Megawin Technology Co., Ltd PS/2+USB Keyboard
Bus 003 Device 003: ID 1395:0089 Sennheiser Communications Sennheiser GSA 70
Bus 003 Device 002: ID 13fe:5500 Kingston Technology Company Inc. USB DISK 2.0
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 2: Dev 3, If 0, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 2: Dev 3, If 1, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 2: Dev 3, If 2, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 2: Dev 3, If 3, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 2: Dev 3, If 4, Class=Audio, Driver=snd-usb-audio, 12M
|__ Port 2: Dev 3, If 5, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 5: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 5: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 9: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 9: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
ubuntu@ubuntu:~$