[wdmaudiodev] Re: USB Audio - INF - installing custom APOs
- From: Frank Yerrace <Frank.Yerrace@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 9 Jun 2009 21:38:38 +0000
Rather than the approach you are taking, the relevant INF section that you
should look at is this:
; System Effects settings
[USBAudio.SysFx.Render]
HKR,"FX\\0",%PKEY_ItemNameDisplay%,,%FX_FriendlyName%
HKR,"FX\\0",%PKEY_FX_PreMixClsid%,,%FX_PREMIX_CLSID%
HKR,"FX\\0",%PKEY_FX_PostMixClsid%,,%FX_POSTMIX_CLSID%
HKR,"FX\\0",%PKEY_FX_UiClsid%,,%FX_UI_CLSID%
HKR,"FX\\0",%PKEY_FX_Association%,,%KSNODETYPE_SPEAKER%
HKR,"FX\\1",%PKEY_ItemNameDisplay%,,%FX_FriendlyName%
HKR,"FX\\1",%PKEY_FX_PreMixClsid%,,%FX_PREMIX_CLSID%
HKR,"FX\\1",%PKEY_FX_PostMixClsid%,,%FX_POSTMIX_CLSID%
HKR,"FX\\1",%PKEY_FX_UiClsid%,,%FX_UI_CLSID%
HKR,"FX\\1",%PKEY_FX_Association%,,%KSNODETYPE_HEADPHONES%
HKR,"FX\\2",%PKEY_ItemNameDisplay%,,%FX_FriendlyName%
HKR,"FX\\2",%PKEY_FX_PreMixClsid%,,%FX_PREMIX_CLSID%
HKR,"FX\\2",%PKEY_FX_PostMixClsid%,,%FX_POSTMIX_CLSID%
HKR,"FX\\2",%PKEY_FX_UiClsid%,,%FX_UI_CLSID%
HKR,"FX\\2",%PKEY_FX_Association%,,%KSNODETYPE_LINE_CONNECTOR%
Each of these groups of registry directives creates the necessary entries to
associate a gfx, lfx, and ui coclasses with a particular type of input or
output on the device. As long as the capture side of your USB device has a
terminal type that results in a KSNODETYPE that is different than the render
side, then you should be able to add a group of registry directives here to
achieve your desired result.
If your device has only line connectors, then unfortunately both the capture
and render sides might both be KSNODETYPE_LINE_CONNECTOR and Windows Vista does
not allow you to apply different gfx/lfx/ui coclasses to them when they are
exposed on the same WDM device interface.
A couple notes:
1. The section name [USBAudio.SysFx.Render] is a bit of a misnomer since
it is also applied to capture terminals (if the USB audio hardware has any).
2. Although the [USBAudio.Interfaces] section that you were modifying
listed three different device interface classes, they are all just aliases for
a single device interface exposed by the Windows usb audio driver. This is why
your approach doesn't work.
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 Dibyendu Nandy
Sent: Monday, June 08, 2009 1:24 PM
To: WDMAUDIODEV
Subject: [wdmaudiodev] USB Audio - INF - installing custom APOs
Hi All,
I am trying to modify the default wdma_usb.inf to have different a sAPO on the
Capture side and the default Microsoft sAPOs on the render side.
The defaults for the inf file seems to be controlled via the following lines.
[USBAudio.Interfaces]
AddInterface=%KSCATEGORY_AUDIO%,"GLOBAL",USBAudio.Interface.Curve,
AddInterface=%KSCATEGORY_RENDER%,"GLOBAL",USBAudio.Interface.Curve,
AddInterface=%KSCATEGORY_CAPTURE%,"GLOBAL",USBAudio.Interface.Curve,
.
.
.
[USBAudio.Interface.Curve]
AddReg=USBAudio.Interface.Addreg.Curve, USBAudio.SysFx.Render
where the [USBAudio.SysFx.Render] defines the appropiate UIs and APOs.
The isse here is that the KSCATEGORY_CAPTURE interface uses the same interface
as KSCATEGORY_RENDER.
My aim is to retain the Microsoft SysFx on the Render side, but add another
interface definition for the capture side, so the INF looks like this.
[USBAudio.Interfaces]
AddInterface=%KSCATEGORY_AUDIO%,"GLOBAL",USBAudio.Interface.Curve,
AddInterface=%KSCATEGORY_RENDER%,"GLOBAL",USBAudio.Interface.Curve,
AddInterface=%KSCATEGORY_CAPTURE%,"GLOBAL",USBAudio.CaptureInterface.Curve,
.
.
.
[USBAudio.Interface.Curve]
AddReg=USBAudio.Interface.Addreg.Curve, USBAudio.SysFx.Render
[USBAudio.CaptureInterface.Curve]
AddReg=USBAudio.Interface.Addreg.Curve, USBAudio.SysFx.Capture
I would have expected the capture device to install the specified capture LFX
on the capture side via [USBAudio.SysFx.Capture].
This is failing, i.e. the MS default sAPOs get installed on both render and
capture side.
I also tried commenting out
;;;;AddInterface=%KSCATEGORY_AUDIO%,"GLOBAL",USBAudio.Interface.Curve,
with no success.
On the other hand if I use the following, I get my APO and UI installed on the
capture device, but my APO and its UI also gets installed on the render device.
[USBAudio.Interfaces]
AddInterface=%KSCATEGORY_AUDIO%,"GLOBAL",USBAudio.Interface.Curve,
;;;;;AddInterface=%KSCATEGORY_RENDER%,"GLOBAL",USBAudio.Interface.Curve,
AddInterface=%KSCATEGORY_CAPTURE%,"GLOBAL",USBAudio.Interface.Curve,
.
.
.
[USBAudio.Interface.Curve]
AddReg=USBAudio.Interface.Addreg.Curve, USBAudio.SysFx.Capture
Where [USBAudio.SysFx.Capture]
specifies the capture LFX I am installing with its UI.
I tried posting to
http://social.msdn.microsoft.com/Forums/en-US/windowspro-audiodevelopment/threads
with no response.
Would appreciate some help.
Thanks
Dibyendu
db
dnandy@xxxxxxxxx
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