I would like some help getting the PCM2912A USB Audio chip working with a Linux based system

I plan to use a variant of the PCM2912A EVM to supply audio support to a system based on the SheevaPlug 

http://www.openplug.org/

http://en.wikipedia.org/wiki/SheevaPlug

The SheevaPlug is ARM based.

Please direst me to drivers that I can use to communicate with the PCM2912A.

Best

Gus