[wdmaudiodev] Re: simple virtual audio driver

  • From: "Cheng-mean Liu (SOCCER)" <soccerl@xxxxxxxxxxxxx>
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Fri, 6 Nov 2015 02:39:47 +0000

MSVAD should work.

The only downside is : the current MSVAD sample uses Wavecyclic port but some
of the Windows Audio Stack enhancement Microsoft did over the last few OS
releases only benefit those audio drivers using WaveRT port.

From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Tim Roberts
Sent: Thursday, November 5, 2015 6:22 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: simple virtual audio driver

Paul Titchener wrote:
I guess one problem with a “simple” driver is there seems to be differences of
opinion in what should be in that simple driver.

Is there any disadvantage in using the MSVAD sample as the starting point, ie
since it was written a while ago is it using dated approaches that could be
done more efficiently or effectively?

Efficiency is irrelevant for the vast majority of the driver -- most of it is
only used for setup. It's the data transfer stuff that matters, and that's
pretty streamlined.


Tim Roberts, timr@xxxxxxxxx<mailto:timr@xxxxxxxxx>

Providenza & Boekelheide, Inc.

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