Hi,
I have found some talk of implementing USB device support in wine in this list some time ago (2005), but as far as I know, nothing ever came of it.
I would perhaps be interested in getting this going again, as I have an application (Serato Scratch Live: http://www.rane.com/scratch.html) for which the software appears to run ok under wine (not that I am able to test much of its functionality on the other hand), but is utterly useless without support for its associated USB hardware device.
Any ideas, or anyone else who would be interested in helping me?
Regards, Jono