[Bluez-devel] Many simultaneous BtOBEX_TransportConnect ?

[Bluez-devel] Many simultaneous BtOBEX_TransportConnect ?

[Fabrizio Guglielmino]

I'm facing a problem with bluez and I can't found the solution.
Situation is:
      bluez-libs-3.1
      openobex-1.2
      linux kernel 2.6.12

I'm simply trying to send a file (vcard) to two cellular phones
simultaneous using object push profile.
I've writed a little C program based on obex_test that take btaddr,
channel and filename and push the last.
If I send to only one device all it'ok, but if I try to send
simultaneous launcing two commands in cascade the first go ok but the
second
always fail in BtOBEX_TransportConnect of openobex ibrary.

Testing two rfcomm connection to same devices all works....

Is this a bluez (or openopex) limitation?

I've implemented the same on windows xp with microsoft stack without  
problems and
I'm testing the solutions with the same bluetooth usd dongles.



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Re: [Bluez-devel] Many simultaneous BtOBEX_TransportConnect ?

[Collin R. Mulliner]

I think this is a OpenOBEX limitation, the workaround is to create the
rfcomm connections "by hand" and then use the OpenOBEX file descriptor
interface.

...
context.libObex = OBEX_Init(OBEX_TRANS_FD, eventhandler, 0);
...
FdOBEX_TransportSetup(...)
...

Collin

On Thu, 2006-07-20 at 22:36 +0200, Fabrizio Guglielmino wrote:
> I'm facing a problem with bluez and I can't found the solution.
> Situation is:
>       bluez-libs-3.1
>       openobex-1.2
>       linux kernel 2.6.12
> 
> I'm simply trying to send a file (vcard) to two cellular phones
> simultaneous using object push profile.
> I've writed a little C program based on obex_test that take btaddr,
> channel and filename and push the last.
> If I send to only one device all it'ok, but if I try to send
> simultaneous launcing two commands in cascade the first go ok but the
> second
> always fail in BtOBEX_TransportConnect of openobex ibrary.
> 
> Testing two rfcomm connection to same devices all works....
> 
> Is this a bluez (or openopex) limitation?
> 
> I've implemented the same on windows xp with microsoft stack without  
> problems and
> I'm testing the solutions with the same bluetooth usd dongles.
> 
> 
> 
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--
Collin R. Mulliner <collin@betaversion.net>
BETAVERSiON Systems [www.betaversion.net]
info/pgp: finger collin@betaversion.net
He is dead Jim! --Dr. McCoy


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Re: [Bluez-devel] Many simultaneous BtOBEX_TransportConnect ?

[Marcel Holtmann]

Hi Fabrizio,

> I'm facing a problem with bluez and I can't found the solution.
> Situation is:
>       bluez-libs-3.1
>       openobex-1.2
>       linux kernel 2.6.12
> 
> I'm simply trying to send a file (vcard) to two cellular phones
> simultaneous using object push profile.
> I've writed a little C program based on obex_test that take btaddr,
> channel and filename and push the last.
> If I send to only one device all it'ok, but if I try to send
> simultaneous launcing two commands in cascade the first go ok but the
> second
> always fail in BtOBEX_TransportConnect of openobex ibrary.
> 
> Testing two rfcomm connection to same devices all works....
> 
> Is this a bluez (or openopex) limitation?
> 
> I've implemented the same on windows xp with microsoft stack without  
> problems and
> I'm testing the solutions with the same bluetooth usd dongles.

run "hcidump -X -V" and check if you might create the ACL connections at
the same time. This will fail with most dongles.

Regards

Marcel



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Re: [Bluez-devel] Many simultaneous BtOBEX_TransportConnect ?

[Fabrizio Guglielmino]

Hi Marcell....You've already respoded to me sending the l2cap patch to 
handle multiple l2cap connections....
The problem is the same ...BtOBEX_TransportConnect make a connect so 
fall in the l2cap layer limitation.
I'm working on the patch but I'm not so expert on kernel/modules 
developing so I need some time.....

Many thansk a lot....

Marcel Holtmann ha scritto:
> Hi Fabrizio,
>
>   
>> I'm facing a problem with bluez and I can't found the solution.
>> Situation is:
>>       bluez-libs-3.1
>>       openobex-1.2
>>       linux kernel 2.6.12
>>
>> I'm simply trying to send a file (vcard) to two cellular phones
>> simultaneous using object push profile.
>> I've writed a little C program based on obex_test that take btaddr,
>> channel and filename and push the last.
>> If I send to only one device all it'ok, but if I try to send
>> simultaneous launcing two commands in cascade the first go ok but the
>> second
>> always fail in BtOBEX_TransportConnect of openobex ibrary.
>>
>> Testing two rfcomm connection to same devices all works....
>>
>> Is this a bluez (or openopex) limitation?
>>
>> I've implemented the same on windows xp with microsoft stack without  
>> problems and
>> I'm testing the solutions with the same bluetooth usd dongles.
>>     
>
> run "hcidump -X -V" and check if you might create the ACL connections at
> the same time. This will fail with most dongles.
>
> Regards
>
> Marcel
>
>
>
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>
>
>   



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