Re: USB asynchronous mode feedback format

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Am Freitag, 15. Oktober 2010, 16:34:31 schrieb Clemens Ladisch:
> Julian Scheel wrote:
> > 11:1:1: endpoint lacks sample rate attribute bit, cannot set.
> > 
> > Does not seem to be feedback related... Although it would be nice to
> > know, what's wrong there?
> 
> What's wrong is
> 1) that the driver complains about something that isn't wrong, and
> 2) that you're using a driver more than three months old, which is when
>    I killed that message.  ;-)

Ok, good to know (c:

> > Is there any way to get some more verbosity out of alsa drivers? To check
> > if it really receives the feedback information at all.
> 
> grep "Momentary freq" /proc/asounc/cardX/stream0
> 
> Or put a log message into retire_playback_sync_urb*().

Momemtary freq in stream0 always stays at 48000 (0x30). So feedback seems to 
be ignored?
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