Re: [PATCHv5 2/3] USB: gadget: Use new composite features in somegadgets

From: Greg KH
Date: Fri Jul 30 2010 - 18:19:08 EST


On Fri, Jul 30, 2010 at 03:01:50PM -0700, David Brownell wrote:
>
> > > That's too extreme; the original handful of
> > > NetChip IDs were (and are!!) correctly assigned,
> > > and there's no reason to change them.  In fact,
> > > there's a lot of reason to continue using them
> > > while config files and drivers expect to see
> > > those specific IDs (as is reasonable).  That's
> > > to avoid breaking working configs...
> >
> > True, I was thinking that for the class-type devices, we
> > could use the
> > linux foundation vid, as changing them shouldn't
> > matter right?
>
> There are INF files using NetChip IDs, so
> changing them would break stuff.
>
> Newer interfaces using new VIDS/PIDS? Fine.
> >
> > Or does Windows really care about the vid/pid for
> > a class device somehow?
>
> My understanding is that it does, since it really
> doesn't have a good concept of "class" being the
> generic thing. INF files embed VIDS/PIDS even
> for drivers implementing class specs. MSFT was
> being stupid again...

Ok, fair enough.

thanks,

greg k-h
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