[wdmaudiodev] Re: Shared mode recording doesn't work if CurrentCount is nonzero
- From: Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 14 Aug 2014 16:26:58 +0000
I believe the intent of this audio subsystem check is to ensure it's not
stepping on any DirectKS clients' toes.
You could presumably attempt to sabotage the intent (for example by registering
your own KSPROPERTY_PIN_GLOBALCINSTANCES handler and returning failures), but
this begins to wander into "unsupported" territory.
Can you help me understand the scenario that requires simultaneous DirectKS and
audio subsystem clients for a given pin? That will help inform future OS
decisions.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Eugene Muzychenko
Sent: Thursday, August 14, 2014 6:13 AM
To: Matthew van Eerde
Subject: [wdmaudiodev] Re: Shared mode recording doesn't work if CurrentCount
is nonzero
Hello Matthew,
> if CurrentCount < PossibleCount, but CurrentCount > the number of
> instances the audio subsystem has itself opened, it will likewise fail
> with "device in use", since something outside of the audio subsystem
> is using the device.
Therefore, to avoid this check and let Audio Subsystem use any available pin
instance, it is enough not to support KSPROPERTY_PIN_CINSTANCES?
Regards,
Eugene
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