[wdmaudiodev] Re: Default role for endpoints set during drivers installation.
- From: "Frank Yerrace" <Frank.Yerrace@xxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 2 May 2006 18:48:03 -0700
Q: can i set the default role for each endpoint of my audio when installing the
drivers?
A: Using the same mechanism as on XP, you can add a registry directive to your
driver's installation INF that will effectively request the audio system to
make your device the default device for all roles. This doesn't allow finer
control such as setting your device for only certain roles. I don't have the
information at my fingertips but if you search your DDK for
SetupPreferredAudioDevices it should lead you to the information.
I'll have to leave your other question for others to answer. Your driver should
expose support for only the speaker configurations that it considers possible
for your hardware. There is no direct way to control this as far as I know but
there may be ways your driver can influence the initial setting. Do you want
your device initially configured for speakers other than stereo even though
there's no guarantee that the user has plugged additional speakers (unless you
have jack detection)?
Frank Yerrace
Microsoft Corporation
This posting is provided "AS IS" with no warranties, and confers no rights.
________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Kenny Ong
Sent: Tuesday, May 02, 2006 6:37 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Default role for endpoints set during drivers
installation.
Hi.
Any idea of how can i set the default role for each endpoint of my audio when
installing the drivers?
And how can i change the default Speaker Configuration for my output endpoint?
Thanks!
Kenny.
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