$ lsusb -t
2-6:1.2: No such file or directory
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/10p, 12M
|__ Port 2: Dev 2, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 9: Dev 26, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 10: Dev 25, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 10: Dev 25, If 1, Class=HID, Driver=usbhid, 1.5M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/10p, 480M
$ lsusb -t ohci_hcd/ 10p, 12M ehci_hcd/ 10p, 480M
2-6:1.2: No such file or directory
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=
|__ Port 2: Dev 2, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 9: Dev 26, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 10: Dev 25, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 10: Dev 25, If 1, Class=HID, Driver=usbhid, 1.5M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=
$ dpkg-query -W usbutils
usbutils 0.82-0ubuntu1