[wdmaudiodev] Re: How to set Default endpoint for Vista installation?
- From: Mitchell Rundle <mitchr@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 3 Apr 2007 13:05:55 -0700
The class driver shouldn't interfere. When your driver installs, the devnode
will get a new "strong name", which invalidates the existing endpoints. You
can test this as follows:
1) Let the USB class driver install
2) Run mmsys.cpl
3) Dbl-click the SPDIF endpoint and change the name to "test"
4) Install your driver
5) Dbl-click the new SPDIF endpoints. It should have the default name.
Mitch
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of KS
Sent: Monday, April 02, 2007 6:23 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: How to set Default endpoint for Vista installation?
hi Mitch,
I've tried what you say, and also tried on a freshly installed Vista System.
On both system, I still end up having the SPDIF-Out endpoint selected as the
default endpoint instead of the Speaker endpoint.
As my device is a USB audio device, the MS usbaudio.sys driver gets loaded once
before I can install my driver. Would this be a reason why I just cannot get
the Speaker endpoint to be the default endpoint?
Are there any other way to specify to Vista which endpoint should be the
default? It would be nice if it can be specified in the INF file, just like the
way we can specify the default format to be used.
KS
On 3/29/07, Mitchell Rundle <mitchr@xxxxxxxxxxxxx<mailto:mitchr@xxxxxxxxxxxxx>>
wrote:
It sounds like you need to get rid of all the endpoint settings so you can
simulate a first install.
1) delete the contents of
HKLM\software\microsoft\windows\currentversion\mmdevices\audio\render
2) net stop audioendpointbuilder
3) net start audiosrv
For step 1 you will have to change the owner of the key to "administrators"
first.
Regards,
Mitch
This posting is provided "AS IS" with no warranties, and confers no rights.
________________________________
From: KS [wakeup1504@xxxxxxxxx <mailto:wakeup1504@xxxxxxxxx> ]
Sent: Wednesday, March 28, 2007 10:26 PM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Cc: Mitchell Rundle
Subject: Re: [wdmaudiodev] Re: How to set Default endpoint for Vista
installation?
Hi Mitchell,
I've tried
1) Reorder the bridge pins so that the speaker bridge pin is the last pin
2) Remove SetupPreferredAudioDevices from the inf
3) Both 1) and 2)
Nothing seems to have changed. I'm using a usb audio device that exposes only
speaker and SPDIF render endpoint, and the SPDIF endpoint is always chosen as
the default endpoint after installation on all 3 occassions. Using the MS
default usbaudio.sys driver gives the same result. Is there anything else that
I can try? Thanks.
KS
On 3/28/07, Mitchell Rundle
<mitchr@xxxxxxxxxxxxx<mailto:mitchr@xxxxxxxxxxxxx><mailto:
mitchr@xxxxxxxxxxxxx<mailto:mitchr@xxxxxxxxxxxxx>>> wrote:
Frank is correct that the speaker is chosen over headphones and SPDIF as the
default if no other endpoint has been explicitly set to be the default (either
by inf or the cpl). However, if your inf has a SetupPreferredAudioDevices
entry for these endpoints, then each will be set in turn to be the preferred
device and when installation is complete the default device will be the last
one processed. The processing order follows the ids of the bridge pins. In
other words if the SPDIF, speaker and headphone bridge pins are 1, 2, 5,
respectively, then the headphone will end up being the default.
The solution is to remove SetupPreferredAudioDevices from the inf, or reorder
the pins.
Regards,
Mitch Rundle
This posting is provided "AS IS" with no warranties, and confers no rights.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>>
[mailto:
wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx><mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>>]
On Behalf Of Frank Yerrace
Sent: Tuesday, March 27, 2007 11:01 AM
To:
wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx><mailto:wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>>
Subject: [wdmaudiodev] Re: How to set Default endpoint for Vista installation?
The Vista heuristics should pick the speaker automatically. There may be some
problem in how your device is describing itself. For starters, you should
confirm that the form factor property (
http://msdn2.microsoft.com/en-us/library/ms679150.aspx) in the endpoint's
property store is Speakers.
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>
<mailto:
wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx><mailto:
wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>>] On
Behalf Of KS
Sent: Tuesday, March 27, 2007 8:31 AM
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx><mailto:
wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>>
Subject: [wdmaudiodev] How to set Default endpoint for Vista installation?
Hi,
I have an audio device which exposes a SPDIF, speaker and headphone endpoints
as rendering endpoints. Currently, after a fresh installation, the headphone
endpoint is always set as the default endpoint by the OS. Is there any way in
which I can specify for the speaker endpoint to be selected as the default
endpoint instead?
Thanks
KS
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