Re: [Bluez-devel] It's rfcomm connect problem

[Andreas Gaufer <Andreas.Gaufer@bluecellnetworks.com>]

Hi Marcel,

i see the problem here and studied the mails about that. We workaround
it by retrying socket a couple of times which works OK even if it wont
scale too good up to the theoretical maximum of connections.

In the moment I'm debugging some phenomena that sends hci_reset to
hci devices that run more than one connection while pumping on maximum
negotiated MTU (Obex Layer). I don't know where its coming from yet, I'll
keep you updated on my findings. =


I would be happy joining the work on the L2CAP later.

Greetings

Andy

On Mon, 24 Jul 2006 18:35:12 +0200
Marcel Holtmann <marcel@holtmann.org> wrote:

> Hi Andreas,
> =

> > thank your for that information. I guess your problem is just the same
> > you had with sdp some while ago. A single BT Device can not *start*
> > connecting to two different remote devices at the same time. =

> > =

> > To solve this you have to find a way to:
> > =

> > 1. Create Connection to device A =

> > 2. Wait until Connect Complete for A's bdaddr happens (no matter if fai=
led or succ.)
> > 3. Then continue with other Create Connection Commands
> =

> we have a plan to make the L2CAP layer handle multiple ACL connects and
> try again if one attempt fails. However the last patch I wrote for it
> got lost somehow and it was broken anyway. The mailing list should
> contain a thread where I proposed how this must be handled. I don't have
> time to look at it at the moment. So if anybody wants to work on it,
> please do so and send in a patch.
> =

> Regards
> =

> Marcel
> =

> =

> =

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-- =

-- =

mit freundlichen Gr=FC=DFen / best regards,

Andreas Gaufer

Office: +49 951-700428-91
Fax: 	+49 951-700428-87
Mail: 	Andreas.Gaufer@bluecellnetworks.com

I fully agree with RFC 1855


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