USB physical port mapping: Mistake in Proxmoxwiki?

Hi,

I've added some usbdongel to an windowsguest. But the description from the wiki: http://pve.proxmox.com/wiki/USB_physical_port_mapping
looks not correct. When i testet Option

usb0: host=3-1

It show me an wrong device. But when ein do something like this:

usb0: host=0e50:0002

It works pretty good.

Greetings
fireon