[wdmaudiodev] Re: HDAudio Verb Communication from GFX sAPO
- From: Preston Fick <pffick@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Tue, 14 May 2013 14:33:35 -0500
I should note that I am by no way planning that this will be part of
production code - I'm looking for an easy way to debug an issue in the
sound processing, which could be related to a hardware setting (suspected)
or could be related to post processing in the chain after my GFX APO.
Kind Regards -
Preston
On Tue, May 14, 2013 at 11:30 AM, Tim Roberts <timr@xxxxxxxxx> wrote:
> Preston Fick wrote:
> >
> > Does anyone have experience with the following IOCTL:
> >
> > IOCTL_AZALIABUS_SENDVERBS
> > (
> http://msdn.microsoft.com/en-us/library/windows/hardware/ff536233(v=vs.85).aspx
> > <
> http://msdn.microsoft.com/en-us/library/windows/hardware/ff536233%28v=vs.85%29.aspx
> >)
>
> There's an interesting cut-and-paste failure in the example on that page:
>
> To initiate communication with the audio codec, the class driver
> calls the DeviceIoControl function with the
> following parameters:
> BOOL DeviceIoControl(
> (HANDLE) hDevice,
> IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER,
>
> I'm pretty sure you aren't ever going to be sending IOCTL_STORAGE ioctls
> to an audio codec. I'll send a doc update about this.
>
> --
> Tim Roberts, timr@xxxxxxxxx
> Providenza & Boekelheide, Inc.
>
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