[Bluez-devel] Connection with a phone stays open after closing RFCOMM channel

[Bluez-devel] Connection with a phone stays open after closing RFCOMM channel

[Victor Shcherbatyuk]

Hi Marcel!

I have the following prob.:

My prog. listens on a RFCOMM chan. (adv. as HF channel via SDP) of  a 
laptop, when I 
connect from my phone to the laptop the chan. is opened, I send some 
commands to configure the phone and when finished, close the chan. The 
problem is that L2CAP connection stays open, from the output of hcidump I 
see that laptop sends DISC request on dlci 6 and receives UA, but then 
according to protocol it should also then send DISC for dlci 0, and then 
terminate L2CAP -- it does not happen...
If I do the same, but initiating connection from laptop - it works fine...
I'm sure there is no other RFCOMM chan. opened.

I have latest lib. and utils, 2.6.10 kernel not pached. The phone is 
SE630.

Thanks in advance.

Kind regards,
          Victor Shcherbatyuk.
 -- 
P.S. btw, phone detects that RFCOMM chan. is closed and changes HF icon to 
general connected icon...



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Re: [Bluez-devel] Connection with a phone stays open after closing RFCOMM channel

[Marcel Holtmann]

Hi Victor,

> My prog. listens on a RFCOMM chan. (adv. as HF channel via SDP) of  a 
> laptop, when I 
> connect from my phone to the laptop the chan. is opened, I send some 
> commands to configure the phone and when finished, close the chan. The 
> problem is that L2CAP connection stays open, from the output of hcidump I 
> see that laptop sends DISC request on dlci 6 and receives UA, but then 
> according to protocol it should also then send DISC for dlci 0, and then 
> terminate L2CAP -- it does not happen...
> If I do the same, but initiating connection from laptop - it works fine...
> I'm sure there is no other RFCOMM chan. opened.

sounds like a bug in the phone. Send in the "hcidump -X -V" for it.

Regards

Marcel




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