Trying to add a USB device to a VM-guest

Hi all,

I am trying to give one of my VM’s access to a USB device hooked up to the host.
lsusb gave me the following info:

Bus 007 Device 002: ID 046d:08b0 Logitech, Inc. QuickCam 3000 Pro [pwc].
I used these instructions and added the following code to the guest definition:

[code]

[/code]

However, when I try to start that guest I get the following entry in my log:

I have no /dev/bus/usb/000/ . How do I get it to try /dev/bus/usb/007/002 (I suspect that is the correct device) instead?

Found the answer on libvirt.org/formatdomain.html :
I also need a <address bus='0x07' device='0x02'/> in the device-config