Re: Maya44 revised patch - vu meters

[Pavel Hofman <pavel.hofman@insite.cz>]

Hi,

The vu-meters in alsamixer are not changing, because alsamixer does not 
  refresh regularly their values. They reflect status of ice1724 
vu-meters at the moment of alsamixer start.

I have already raised the issue and I got a fair answer - alsamixer is a 
console mixer and should thus consume as little network bandwidth as 
possible.

Since the meaning of these read-only controls is clear only upon 
detailed study of the driver and Envy24 datasheet plus I encounter a lot 
of questins/complaints about them, I suggest to change their type from 
MIXER to PCM. They would still be readily accessible from amixer or API.

Here is my little vu-meter script I use for testing ice1724 cards:

while true; do amixer cget name="Multi Track Peak" | grep ": values";
sleep 0.5; done

Thanks for considering this minor change which would simplify life of a 
lot of users/admins.

Regards,

Pavel Hofman.


Rainer Zimmermann wrote:
> 
> This is the revised version of the ESI Maya44 patch.
> changes are mainly coding style, some cleanups and using a patch file 
> for ice1724.c .
> 
> The added code now (mostly) passes checkpatch.pl, except for some "#if 
> 0"'s which I'd leave in for the development phase.
> 
> Also, I changed the rate setting logic, which (for now) allows all rates 
> up to 192kHz even for capturing. As capturing actually only supports 96 
> kHz, while capturing & playback rates are linked, this is not really ok. 
> I'd appreciate suggestions about how this could be handled properly, 
> while still supporting playback up to 192 kHz...
> 
> 
> Again, feedback & testing is appreciated.
> 
> For more information, see doc/README.maya44 .
> 
> 
> -Rainer
> 
> 
> 
> 
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