[wdmaudiodev] Re: Audio OUT on Longhorn
- From: "Sam Tertzakian" <sam@xxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>, "'Richard Fricks'" <richfr@xxxxxxxxxxxxx>
- Date: Fri, 5 Aug 2005 02:34:40 -0700
Hi, Richard,
I am having a very similar problem. I have an XP WHQL certified audio driver
that works perfectly under XP. Under Longhorn "Build
5048.winmain_idx02.050401-0536" here is what I see:
1. No wave devices are enumerated.
2. In GraphEdit the device is NOT present under "Audio Capture Sources"
(QCap.dll)
3. In GraphEdit the device is present under "WDM Streaming Capture Device"
4. In KsStudio, everything seems fine.
5. In Registry everything seems find (compared with XP).
6. When I use the device using the "WDM Streaming Filter" everything works.
7. The device appears normally under Device Manager.
My device is a "Capture Only" device. I don't have a Render device. But the
capture device is not available as wave device.
Does anybody have a solution for this? Longhorn is coming soon, and this is
worrying me greatly.
Sam Tertzakian
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Guenter Hildebrandt
Sent: Monday, July 18, 2005 5:56 AM
To: Richard Fricks; wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Audio OUT on Longhorn
Dear Richard,
thank you for your answer. Here are the information you have requested:
We are testing on Longhorn build 5048.winmain_idx02.050401-0536. That
version was handed out at WinHEC 2005.
I will try to provide more details. The situation is as follows:
Our WDM render devices are displayed in KSStudio. They are not displayed
in Control Panel - Sounds and Audio Devices. Our PCM capture devices are
available there.
Graphedt shows our PCM render devices under WDM Streaming Rendering
Devices. It does not show any of them under Audio Renderers.
On Windows XP the same driver works well.
Best regards
Guenter Hildebrandt
Fricks wrote:
> Perhaps I can help figure out the problem. Any other details you think
> might be relevant to this issue?
>
> It would be helpful to know what build of Longhorn are you using. Have
> you tried running graphedt and does it see the device under audio
> renderer or wdm streaming?
>
> Thanks,
> Richard Fricks
> Technical Lead, Microsoft DDK
>
> -----Original Message-----
> From: wdmaudiodev-bounce@xxxxxxxxxxxxx
> [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Guenter
> Hildebrandt
> Sent: Thursday, July 14, 2005 11:19 PM
> To: wdmaudiodev@xxxxxxxxxxxxx
> Subject: [wdmaudiodev] Audio OUT on Longhorn
>
> Hi,
>
> We have an AVS WDM Audio driver which expose a Audio render interface.
> It works well on XP and W2K. On Longhorn the interface is not routed to
> the user mode. It is visible in KS Studio.
>
> Has anybody a hint, who Microsoft has changed the rules to route an
> audio interface to the user mode?
>
> Thanks
>
> Guenter
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