[wdmaudiodev] Re: Multichannel ?

  • From: Robert Bielik <robert.bielik@xxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Tue, 02 Nov 2010 17:11:45 +0100

Matthew van Eerde skrev 2010-11-02 16:52:
You can indicate to the audio stack that your "supported formats" list has 
changed by raising an event: http://msdn.microsoft.com/en-us/library/ff537132(VS.85).aspx

"When the miniport driver detects a dynamic format change, it must call the 
IPortEvents::GenerateEventList method to signal the KSEVENT_PINCAPS_FORMATCHANGE 

This requires Windows 7 or later.

Ah, bummer. My solution needs to support XP SP3 onward, so I guess I'll disable 
any format changes as long as there's a client
connected to my device to avoid confusion. But I'll definitely try it on 
Windows 7.

Regarding the "Advanced" tab, earlier on the list someone modified the registry settings 
to reflect the new "default format" and
that seems to work (knock, knock).


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