How to identify multiple USB-serial adapters under Ubuntu 10.1

Question

I am reading data from multiple identical USB-serial adapters under Ubuntu 10.1.

On occasion, their /dev/tty path changes (eg if other USB devices are connected on s

Answer 1

The devices all have the same serial numbers [..]

The usb-parse-devpath.pm addresses this by using the bus and port id of the adapter.