"Sean Morrell" said:

And there is no way of identifying each device uniquely,

other than USB address.

You are not guaranteed that the USB address will be the same across reboots. I would use the locationID (GetLocationID) for each device as the way to uniquely identify a USB device. - Fernando -- Fernando Urbina mailto:nano@apple.com USB Technology Team work: 719.534.9387 Apple Computer, Inc. fax: 719.532.0981