Re: Starting a driver
- From: "Doron Holan [MSFT]" <doronh@xxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 16 Mar 2008 21:19:14 -0700
w/out broadcom's help, i do not think you will get a viable solution that works across multiple broadcom releases.
d
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<km7kumar@xxxxxxxxx> wrote in message news:901a011c-9afe-43be-8fc6-26fbfcc36791@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Mar 15, 12:23 pm, "Doron Holan [MSFT]"
<dor...@xxxxxxxxxxxxxxxxxxxx> wrote:
the upper edge of btaudio is going to be KS. I do not know enough about
msvad to know if you can do what you want, but the underlying bth radio will
do nothing with your requests if no headset is present
d
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<km7ku...@xxxxxxxxx> wrote in message
news:f49939fa-b683-4f8c-88d8-16c08d51fdc9@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> On Mar 14, 4:40 pm, "Doron Holan [MSFT]" <dor...@xxxxxxxxxxxxxxxxxxxx>
> wrote:
>> the driver loads when a device that supports it is enumerated on the
>> system.
>> the bluetooth stack "starts" the btaudio driver by enumerating the >> audio
>> device. unless the bth stack can be controlled from user mode, your >> app
>> cannot force enumeration of this device.
>> d
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>> <n2wo...@xxxxxxxxx> wrote in message
>>news:c2ab1dce-f162-429b-a798-69c1d651a6fb@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> > This is a basic question. Any help would be appreciated.
>> > I've a PortCls driver (btaudio.sys) on the system and want to start
>> > it. It appears (used DriverView utility) it is already
>> > loaded but the sound device it represents does not appear in Control
>> > Panel | Sound and Audio Devices | Audio & Voice
>> > tabs.
>> > The bluetooth stack that uses the driver seem to "start" it when I
>> > connect to a headset for example. However, I've a situation where I
>> > want to start this from my application.
>> > How do I do it?
>> > Thanks
>> > /kmk
> I do use the SDK that comes with Bluetooth stack but it doesn't
> provide
> any functions for enumerating the btaudio.sys. If there is no way to
> do it using Win32 or DDK API, can I modify msvad that comes with
> the DDK to call btaudio in its lower edge?
> When I load msvad, it (the "simple" device) appears on the
> control panel audio devices and I was able to switch between
> soundmax and simple.
> thanks
> /kmk
My problem is how to activate or enumerate btaudio.sys once I
establish
audio connection to the headset. The SDK that comes with the stack
does not do this however it provides API to create audio connection.
When I asked Broadcom, they replied that they have a gluelogic that
they use in their stack but not in their SDK. They weren't willing
to provide additional info. They simply brushed off my questions.
To workaround this issue I thought I could convert msvad into a
sort off pass-through driver. ie. its lower edge will be btaduio.sys.
msvad is also a PortCls driver like btaudio.sys. The only difference
is msvad shows up in Control Panel | Sounds and Audio Devices where
as btaudio doesn't.
.
- References:
- Starting a driver
- From: n2works
- Re: Starting a driver
- From: Doron Holan [MSFT]
- Re: Starting a driver
- From: km7kumar@xxxxxxxxx
- Re: Starting a driver
- From: Doron Holan [MSFT]
- Re: Starting a driver
- From: km7kumar@xxxxxxxxx
- Starting a driver
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