USB GPS by DeLorme

[Matthew Carpenter]

How do I tell how to access a new USB device?  

I'm looking through Kinfocenter and wondering why they don't include that information in the USB section (like, device to access it.. a duh!)
And I got to wondering how they'd implement that.  Does anyone have a superior understanding of USB and wish to take a stab at determining what device to access a USB device through?  For this example, use 2.4.21, or SuSE 9.0pro.

The challenge is set.  Thanks
Matt

ps.  The need is to access a USB GPS from DeLorme, called the Earthmate.