[wdmaudiodev] KSPROPERTY_CONNECTION_ALLOCATORFRAMING is not sent

  • From: Eugene Muzychenko <emuzychenko@xxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Fri, 24 Oct 2008 09:23:28 +0700

Testing my virtual WavePci miniport filter, I see that
KSPROPERTY_CONNECTION_ALLOCATORFRAMING is never sent. As a
result, IMiniportWavePciStream::GetAllocatorFraming is never called by
PortCls. Windows audio subsystem uses as many (or as little) mappings
as it wants.

I monitor all driver property requests and see only two requests from
KSPROPSETID_Connection are used: KSPROPERTY_CONNECTION_STATE and
KSPROPERTY_CONNECTION_DATAFORMAT.

How can I force the system to use
KSPROPERTY_CONNECTION_ALLOCATORFRAMING property?

Regards,
Eugene



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