Re: [Bluez-devel] About concurrency sdp_connect

Fabrizio Guglielmino
2006-09-15T09:54:57Z

Hi,
in my attempt to understand how the microsoft stack make this possible I =

have tried to find hcidump an equivalent
on windows to visualize hci command issued to the device. I've found =

only commercial (and not cheap ) software, is
there a software can I use to dump hci commands on windows?

many thanks

Marcel Holtmann ha scritto:
> Hi Peter,
>
> =

>>> I'm not expert in bluez kernel driver programming but I've developed an =

>>> application using socket abstraction
>>> on Windows (microsoft stack) and I can connect simultaneously to many =

>>> devices (7 max) with the same usb dongled
>>> tested with bluez on linux. So I think it can't be a hardware problem, =

>>> or better may be the hardware limitation but I think it's bypassable
>>> in software layers.
>>> bye
>>> Fabrizio
>>> =

>> The problem is not to connect to 7 devices simultaniuous. The problem is =

>> that (on the HCI level) most (or all??) devices gives you an error =

>> response when you start a new connection while there is an outstanding =

>> connection request. Of cause you can come arround this by software on th=
e =

>> upper level. E.g. you can make sure not to send a new connect request to =

>> the device while it has not responeded to the previous one. =

>> =

>
> my last attempt to make this work actually failed, but I didn't put much
> energy into it. Feel free to come up with a working version. The path
> how to handle this is clear.
>
> =

>> Don't know what microsoft is doing here (don't have their source ;-). =

>> =

>
> They will do something similar. If you get a HCI trace, then you can see
> for yourself what they are doing.
>
> Regards
>
> Marcel
>
>
>
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-- =

______________________________
Fabrizio Guglielmino =

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Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easi=
er
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=3D1=
21642