[wdmaudiodev] Re: VAD woes on Win 10
- From: Robert Bielik <Robert.Bielik@xxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Fri, 12 May 2017 13:51:05 +0000
To answer your original question, you cannot put a wildcard in the .inf, but
you can dynamically add KSCATEGORY_AUDIO interfaces by calling
IoRegisterDeviceInterface. Since you’re a portcls miniport you will want to
use PcRegisterSubdevice which does some of the dirty work for you.
I do use PcRegisterSubdevice (in InstallSubdevice, as from the msvad example),
but using the "Wave_XXXX" name fails to give me any audio device in control
panel, is there anything else I need to do ?
There appears to be no sample for KSEVENT_PINCAPS_FORMATCHANGE. It
is important to note that KSEVENT_PINCAPS_JACKINFOCHANGE is raised on
the pin factory that sits on the hardware end of the signal path (the one with
the jack descriptions) but KSEVENT_PINCAPS_FORMATCHANGE should be
raised on the pin factory that sits on the software end of the signal path
(the
one where KsCreatePin gets called.)
Ok, the PPORTEVENTS interface pointer is queried in
CMiniportWaveCyclicMSVAD::Init, so I hope that is the correct place to do it ?
Can you also file a problem report for the lack of a sample and share that as
a
direct link?
I did, however, I missed the "copy link" feature. Sorry 😊
Regards
/R
From: Robert Bielik <mailto:Robert.Bielik@xxxxxxxxx>
Sent: Friday, May 12, 2017 6:23 AM
To: wdmaudiodev@xxxxxxxxxxxxx <mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: VAD woes on Win 10
Hi Matthew,
Then I probably am using it incorrectly. Are there any example sources using
KSEVENTSETID_PinCapsChange/ KSEVENT_PINCAPS_FORMATCHANGE ? The
sysvad example uses only KSEVENT_PINCAPS_JACKINFOCHANGE.
Regards
/R
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-
bounce@xxxxxxxxxxxxx] On Behalf Of Matthew van Eerde
Sent: den 12 maj 2017 15:19
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: VAD woes on Win 10
KSEVENTSETID_PinCapsChange should work. If it doesn't, please file a
problem report in the Feedback Hub and share a direct link.
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fblogs.
msdn.microsoft.com%2Fmatthew_van_eerde%2F2016%2F09%2F26%2Frepo
rt&data=02%7C01%7CMatthew.van.Eerde%40microsoft.com%7Cdff2278857
444a8ca73108d4993a10f1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0
%7C636301922059868725&sdata=f1Le%2BFI%2B0NzcBlG5lylO20DDs3FBFEWf
GJsJxLpcbEc%3D&reserved=0
<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fblogs
.msdn.microsoft.com%2Fmatthew_van_eerde%2F2016%2F09%2F26%2Frep
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0%7C636301922059868725&sdata=f1Le%2BFI%2B0NzcBlG5lylO20DDs3FBFEW
fGJsJxLpcbEc%3D&reserved=0>
-problems-with-logs-and-suggest-features-with-the-feedback-hub/
From: Robert Bielik <mailto:Robert.Bielik@xxxxxxxxx>
Sent: Friday, May 12, 2017 6:16 AM
To: wdmaudiodev@xxxxxxxxxxxxx <mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] FW: VAD woes on Win 10
Hi all,
I'm trying to get my VAD to work on Win 10, it is based on the old msvad
WaveCyclic example (using Portcls).
In essence the problem is that the device, named "Wave", can change its
capabilities (#channels, samplerates aso) through a control interface. But
with the new and fancy caching of capabilities in Windows 10 (which I have
no clue what the use is for), whenever I change the caps from the first
registered caps, Sound control panel will not display the "Advanced" tab for
the device (where samplerates are selected), thereby rendering it useless.
One way to tell Windows that the caps has changed, is through the
KSEVENTSETID_PinCapsChange event. I post this whenever I bring up the
device, but alas, Windows does not seem to requery the capabilities. There
seems to be a bug in this mechanism acc. to these sources
(https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithu
b.com%2Feiz%2FSynchronousAudioRouter%2Fblob%2Fmaster%2FSynchron
ou&data=02%7C01%7CMatthew.van.Eerde%40microsoft.com%7Cdff2278857
444a8ca73108d4993a10f1%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0
%7C636301922059868725&sdata=3%2Fb7VetMM%2FYMuFNSXmQCmTy6eI2
hAQJPS0fnSyFXxv8%3D&reserved=0
sAudioRouter/control.cpp#L702) anyway.
So, the workaround seems to be to change the "Wave" name whenever
the
caps change. So, I thought I'd make a naming scheme "Wave_XXXX" where
XXXX is a hash combination of #channels + all supported samplerates. But if
I
do this, Sound control panel doesn't show my device at all, probably
because
the "Wave" name that is also specified in the .inf file:
[Strings]
...
KSNAME_Wave="Wave"
KSNAME_Topology="Topology"
[DevInst.<arch>.Interfaces]
AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_Topology%,DevInst.I.To
pology
AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_Wave%,DevInst.I.Wave
is not matched in the driver. So, the question is, how do I programmatically
do an "AddInterface" with the "Wave_XXXX" name so it can popup in the
Sound control panel ? Or is it possible to have AddInterface in the .inf
file
with a wildcard ?
Regards
/Robert
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