Re: [Bluez-users] Multiple RFCOMM connections with 2.4.x kernel

[Marcel Holtmann <marcel@holtmann.org>]

Hi Venkat,

>   I am trying to establish two rfcomm connections between two linux
> machines running 2.4.21 kernel. I am using different channel numbers
> for both connections. First connection getting established normally.
> Second connection fails in the connect() with EBUSY OR EAGAIN. I have
> putdown the steps I am doing exactly below. My question is "Can I
> establish more than one RFCOMM connection between two machines running
> 2.4.x kernels"? It would be very helpful if somecan reply to this.

yes, you can. I don't know of a bug in 2.4.21, but you should try the
latest 2.6 kernel.

> Here is what I am doing:
> 1. Start RFCOMM serversocket on Machine1. Its waiting on accept()
> 2. Connect from Machine2 to Machine1 using connect(). I am able to
> connect to server here.
> 3.Start another serversocket on Machine2 on different channelID. Its
> waiting on accept()
> 4. Try to connect from Machine1 to Machine2 using connect(). This
> fails with EAGAIN or EBUSY as long as the connection established in
> step 2 remains.

Provide some example code and the output of "hcidump -X -V" on the
server machines.

Regards

Marcel




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