Q: porting driver for USB scanner - where to start?

[Stefan Dösinger]

> I want to write a linux driver for my USB scanner which is currently not
> yet supported by sane. So I wonder where to start; where do I find detailed
> information about the Windows driver interface, esp. for USB scanners. I
> want to know which interface a driver has to offer to Windows and which
> functionality the API has to offer.
www.msdn.com might be useful I guess.