[wdmaudiodev] Re: driver/app binding
- From: "David Roach" <david.roach@xxxxxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 22 Nov 2007 08:53:40 -0600
DirectKS will allow direct access to drivers under XP. It is roughly
equivalent to exclusive mode in Vista, though considerably more
understanding is required to use it effectively.
http://www.microsoft.com/whdc/device/audio/DirectKS.mspx
http://download.microsoft.com/download/1/8/f/18f8cee2-0b64-41f2-893d-a6f2295
b40c8/DW04022_WINHEC2004.ppt
http://www.hydrogenaudio.org/forums/lofiversion/index.php/t8635.html
Good luck,
David Roach
Optimal Sound
www.optimalsound.net
-----Original Message-----
From: FreeLists Mailing List Manager [mailto:ecartis@xxxxxxxxxxxxx]
Sent: Thursday, November 22, 2007 1:43 AM
To: wdmaudiodev digest users
Subject: wdmaudiodev Digest V4 #204
wdmaudiodev Digest Wed, 21 Nov 2007 Volume: 04 Issue: 204
In This Issue:
[wdmaudiodev] driver/app binding
----------------------------------------------------------------------
From: "Larry Menasco" <menasco@xxxxxxxxxxxxxx>
Subject: [wdmaudiodev] driver/app binding
Date: Wed, 21 Nov 2007 00:43:21 -0800
Hey All,
I spent a half a day looking for some knowledgeable people familiar with
audio drivers, and I must say I think my looking has paid off!
Here's my question: Does anyone know of a way to "bind" a particular audio
device to a particular app in such a way that no other app can have access
to that particular audio device while the first app is active? And oh yes,
I need to be able to do it on an XP os. I'm aware that the Vista Core Audio
API has an exclusive-mode for audio streaming that does essentially what I'd
like to do, but my particular app. needs to work with an XP based program,
so I need to stick with XP (for the moment). The particular audio device
happens to be a USB audio device (micronas based) that when plugged in
brings up a generic composite driver, to which I am able to use waveIn and
waveOut. Is there any way, other than writing a dedicated driver for the
usb audio devices (and at some point I plan to be using two USBs at a time)
to prevent other apps from having access? I know if I don't elect it as the
default, then the other apps (unless specifically pointed to the device)
will leave it alone, but I would prefer not even having that as a
possibility.
And if it can't be done without a driver, then at least you've saved me the
time of finding that out on my own, and I'll then be back for help writing a
driver.
Thanks!
Larry Menasco
------------------------------
End of wdmaudiodev Digest V4 #204
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