Re: [RESENT] [PATCH - Fix Fast Track Ultra series: 44.1/88.1 kHz 1/Fix playback/capture issues and related chrashes at 44100 Hz and 88200 Hz for M-Audio Fast Track Ultra series.

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On Thu, Sep 02, 2010 at 11:12:59AM +0200, Clemens Ladisch wrote:
> Takashi Iwai wrote:
> > I myself find it's OK to apply since it's pretty local change.
> > Clemens, what was your objection at that time?
> 
> No objection per se, I wanted to find out what descriptor field is
> changed by the quirk, and where the crashes come from exactly.  The
> latter is still unclear, but it seems a quirk like this is required.
> 
> I've committed the patch now.
> 
> > > Also, the Interface Class protocol for the device defaults to Vendor 
> > > Specific Class, but the driver only recognizes Class 1 or 2. The device 
> > > is really Class 1, so we have to force it to reflect this. There are 4 
> > > places that we need to set this."
> 
> Daniel, this seems to be a regression introduced with the UAC2 changes.
> The old driver accepted vendor-specific interfaces, if some quirk forced
> it to look at them.

Hmm, I don't follow. What's the problem, and why should that be caused
by the UAC2 changes? Sorry, but I seem to have missed that thread.


Thanks,
Daniel
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