[wdmaudiodev] Re: [Microphone array WDM driver] - The microphone array driver did not work well when it was installed as a child driver of toaster bus driver.
- From: Jun Jiang <jun.jiang77@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Mon, 31 Jan 2011 17:39:06 +0800
On Mon, Jan 31, 2011 at 5:34 PM, Jun Jiang <jun.jiang77@xxxxxxxxx> wrote:
> Hi All,
>
> My question: The microphone array driver did not work well when it was
> installed as a child driver of toaster bus driver.
>
> My setting: Windows 7 x86 and x64; WDK 7600.
> Code base: Toaster sample code and msvad\micarray sample code.
> Reason why to use bus driver + child micarray driver: My PCIe card has
> multifunctions but it only reports one Vendor ID/Device ID.
>
>
> My steps:
> 1) Install micarray sample driver directly with hardware
> wizard(hdwwiz.exe). Set it as default recording device.
> Run "Sound Recorder", micarray works well.
> Check "Recording devices" in "Sound" panel, the properties are OK. Four
> property tabs, General, Listen, Levels and Advanced are disappeared.
> #Note: I change the code to fill the destination buffer in CopyFrom()
> with a wave file.
> 2) Install toaster bus driver. The bus driver will enumerate a child
> device. - (I change the toaster bus driver to make it enumerate a child
> driver in AddDevice().)
> Update the child driver with micarray driver. Set it as default
> recording device.
> Run "Sound Recorder" and start recording. An error message, "An audio
> recording device cannot be found", was shown.
> Check "Recording devices" in "Sound" panel, the properties are
> NG. Three property tabs, General, Listen, Levels. There was no Advanced
> tab. And Levels tab was empty.
>
>
> One more question is: Whether is the architecture of bus driver + micarray
> driver OK?
>
> BTW, the bus driver works well with video capture driver(modified from
> AVStream sample driver), RS232 port driver and other own child drivers.
>
> Could some body help me on it? Thank you very much.
>
> BR,
> Tim
>
>
>
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