[wdmaudiodev] AW: Re: sample User mode installable multimedia driver
- From: "Tobias Erichsen" <erichsen@xxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Wed, 18 Mar 2009 10:11:27 +0100
Hi Frank,
one reason to write such a "driver" would be to get an easy ability to write
stuff
like virtual or network audio or midi-drivers. The complexity is much lower
than
writing a WDM Audio driver model driver.
Also it is possible to dynamically create & remove additional ports which have
a dynamic changeable friendly name - I have yet to find any good sample for
the WDM Audio stuff that show how to do that...
Tobias
________________________________
Von: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] Im Auftrag von Frank Yerrace
Gesendet: Mittwoch, 18. März 2009 09:46
An: wdmaudiodev@xxxxxxxxxxxxx
Betreff: [wdmaudiodev] Re: sample User mode installable multimedia
driver
The wodMessage driver model is generally not well supported on any of
the recent releases of desktop Windows. You should consider the WDM Audio
driver model. See http://msdn.microsoft.com/en-us/library/bb870472.aspx.
Is there a particular reason you need to implement a user-mode driver
of this type? What version of Windows are you targeting?
Frank Yerrace
Microsoft
This posting is provided "AS IS" with no warranties, and confers no
rights.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Vipin Kumar
Sent: Tuesday, March 17, 2009 10:53 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] sample User mode installable multimedia driver
Hi,
i am trying to write a user mode installable multimedia driver (
basically i want to implement the wodMessage ).please visit
http://msdn.microsoft.com/en-us/library/ms713504(VS.85).aspx
i can see my device in the list, however, when someone tries to open
the device, i receive a callback argument with value 0, which is not valid
so no one is able to open the device( AFAIK the device will open only
when the callback is sent, but since it's a value of zero, it's of no use )
can someone help me out here.
i am also trying to search a sample but in vain. Can someone please
point me out to the sample or what am i doing wrong or how should i do it.
waiting for your help
--
--
Thanks & Regards
=================
Vipin.
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