[wdmaudiodev] USB Audio - INF - installing custom APOs
- From: Dibyendu Nandy <dnandy@xxxxxxxxx>
- To: WDMAUDIODEV <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Mon, 8 Jun 2009 13:23:52 -0700 (PDT)
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
Other related posts:
