Re: [Bluez-users] Bluez/bluetooth newbie

[anoop <ee02m043@yahoo.com>]

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Hi Scott,
   
  I am also in the search for  such a library.
  Can you point me to this?.
   
  Anoop

"Turley, Scott-P27856" <Scott.Turley@gdc4s.com> wrote:
  Doing a little more investigation, I found a library that sends/receives
data over a socket connection using rfcomm. 

However, if I use the client side of this library, doing a connect to
another bluetooth device that implements the Serial Port Profile, it
works beautifully, I'm able to send data that gets displayed on the
windows side hyperterminal.

When I try to run the server side library on the Linux machine, and
attempt to make a connection over the hyperterminal, I get an error
message: "Connection attempt failed because the remote device does not
support the Serial Port Profile".

How do I get a listener on a Linux host to accept serial port profile
connections?

-Scott

-----Original Message-----
From: bluez-users-bounces@lists.sourceforge.net
[mailto:bluez-users-bounces@lists.sourceforge.net] On Behalf Of Marcel
Holtmann
Sent: Thursday, October 19, 2006 9:30 PM
To: BlueZ users
Subject: Re: [Bluez-users] Bluez/bluetooth newbie

Hi Scott,

> I'm trying to do something really simple in the bluetooth environment.
> I attached a USB bluetooth module (from A7 engineering) to a Linx PC, 
> and I attached a serial module to a windows PC. This serial module 
> has the complete stack, and I just interface to it with ASCII commands

> over a serial port profile. I want to simply send ASCII text across a

> bluetooth serial connection between the two computers.
> 
> I have been able to do this successfully with a windows host. Here 
> are the steps I'm taking:
> 
> * On the Windows side, I connect to the serial bluetooth module,
> configure the baud rate to 9600, no HW flow control, etc.
> * On the Linux side I start the hcid and sdpd services.
> * Then I search for the remote bluetooth device using "hcitool
> inq" and I see it.
> * I establish a connection using "hcitool cc ".

this step is not needed at all.

> * Finally I use rfcomm to make a serial connection: "rfcomm
> connect 0 1".

You might wanna use "rfcomm --raw connect 0 1".

> The windows side recognizes a connection is made, but I am unable to 
> get data across.
> 
> I have found no way to establish baud rate. Is that necessary across 
> bluetooth?

No. The baud rate is for the physical interface of the module and not
the RFCOMM connection.

Regards

Marcel



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