Re: [Bluez-devel] Pairing fails with RFCOMM

[Marcel Holtmann <marcel@holtmann.org>]

Hi Nils,

> OK, maybe like this:
> ----->
> xx. RFCOMM connection using minicom or other tool fails, why?
> Problem: In case you have created the RFCOMM link using the "rfcomm
> bind" function this can be caused by application timeouts. This is not a
> problem of BlueZ or the RFCOMM implementation but rather a problem with
> the different nature of a RFCOMM virtual tty and a physical serial tty
> device which is normally used by those applications. Some applications
> implement a timeout protection function while opening the port. If
> opening the port takes longer than a certain amount of time then the
> application fails. A serial tty will usually only take several
> microseconds to open while the RFCOMM virtual tty can take several
> seconds. Additionally opening requires to create a connection to the
> remote Bluetooth device, closing the port closes the connection again.
> Application which open and close the port frequently may thus also fail!
> Solution: Try to create the connection before starting you application.
> This can be done by the "rfcomm connect" function. The Bluetooth
> connection will then remain until the rfcomm utility is stopped.
> <-----
> 
> A bit lengthy maybe ;)

thank you. I stripped a little bit and put it only ;)

> How does BT-HID mouse work?

The best is you follow this HOWTO

	http://www.bueche.ch/comp/mx900/mx900.html

And don't use the bthid from Peter Klausler until you patch it up.

> I have a BT mouse here but the bthid daemon does not connect to it nor
> can I connect another service like rfcomm to it...

RFCOMM will never work, because HID is only based on L2CAP.

> The accompanied keyboard works like a charm!

If the keyboard works, the mouse should work also.

Regards

Marcel




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