Bluetooth set RfComm channel

[Gorka]

Hi,

I am trying to connect my Bluetooth device with an application running
on my laptop. The problem I have is that this application (I can not
change it) only accepts connections on a certain RfComm channel. When
I create my server socket using listenUsingRfcommWithServiceRecord it
creates the service in a random channel. What I am doing right now is
to create many services, 6 for example, and hope that one of them is
created on the channel 8. Is it possible somehow to indicate or force
the channel where the SDP service is going to be offered??

Thanks, Gorka

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[Pavan Savoy]

I think so yes.
That is how obex does and pbap does in android both force themselves
to listen onto 12 and 19 respectively ...
you can check their source code...

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--Pavan Savoy

[Arun Kumar]

Dear Gorka,

You should be able to check the relevant BT service and thier port numbers in your init.rc file. this is where all BT services are autoluanched via sdptool with user/group as Bluetooth.

for most part. rfcomm port numbers are mostly reserved ..viz ftp 21, opp as 19 etc.. but init.rc is a good starting point to understand same.

thanks,
Arun

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Regards,
Arun