stefan@pandaboard:~$ lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-omap3/3p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-omap/3p, 480M
|__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/5p, 480M
|__ Port 1: Dev 3, If 0, Class=vend., Driver=smsc95xx, 480M
|__ Port 2: Dev 5, If 0, Class=hub, Driver=hub/4p, 480M
|__ Port 1: Dev 6, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 1: Dev 6, If 1, Class=HID, Driver=usbhid, 1.5M
|__ Port 4: Dev 7, If 0, Class=HID, Driver=usbhid, 12M
|__ Port 4: Dev 7, If 1, Class=HID, Driver=usbhid, 12M
|__ Port 4: Dev 7, If 2, Class=HID, Driver=usbhid, 12M
|__ Port 3: Dev 4, If 0, Class=stor., Driver=usb-storage, 480M
This is what my USB setup looks like:
stefan@ pandaboard: ~$ lsusb -t ohci-omap3/ 3p, 12M ehci-omap/ 3p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=
|__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/5p, 480M
|__ Port 1: Dev 3, If 0, Class=vend., Driver=smsc95xx, 480M
|__ Port 2: Dev 5, If 0, Class=hub, Driver=hub/4p, 480M
|__ Port 1: Dev 6, If 0, Class=HID, Driver=usbhid, 1.5M
|__ Port 1: Dev 6, If 1, Class=HID, Driver=usbhid, 1.5M
|__ Port 4: Dev 7, If 0, Class=HID, Driver=usbhid, 12M
|__ Port 4: Dev 7, If 1, Class=HID, Driver=usbhid, 12M
|__ Port 4: Dev 7, If 2, Class=HID, Driver=usbhid, 12M
|__ Port 3: Dev 4, If 0, Class=stor., Driver=usb-storage, 480M