Re: Serial connection with a T68i
Re: Serial connection with a T68i
- Subject: Re: Serial connection with a T68i
- From: Eric Brown <email@hidden>
- Date: Wed, 9 Oct 2002 10:43:03 -0700
On Wednesday, October 9, 2002, at 10:25 AM, Eric Welch wrote:
Alberto,
Exclusive use of a Bluetooth serial port is more a POSIX issue than a
Bluetooth issue.
Consider
#include <ttycom.h>
ioctl(fd, TIOCEXCL, 0);
after you open the port. That should prevent anyone else from being
able to
get it.
Hope this helps...
eric
And the problem is that even if you use the Bluetooth APIs to access
the RFCOMM channel directly, there is still likely only one Serial Port
Profile RFCOMM channel on the device. A single RFCOMM channel only
allows for a single client to use it at one time, so while you were
using the Bluetooth API to access it, it would be unavailable through
the tty.
- Eric
From: Alberto Ricci <email@hidden>
Date: Wed, 9 Oct 2002 14:54:28 +0200
To: email@hidden
Subject: Serial connection with a T68i
Hello,
I am writing an application and I would like to make it communicate
with a T68i cellphone via a bluetooth connection.
Yeah, I'm new to bluetooth development and protocols.
The device is already paired with the Mac, so there is a serial port
available for communicating and I could use the usual posix routines
to open the port and do serial i/o.
However, I would like to be able to communicate with it without
preventing other applications from being able to use that serial
port. As far as I know, the Address Book application does that.
How is this achieved?
Or does the Address Book application only open the serial port in a
read-only mode with allows other processes to access it? But Address
Book does send AT commands to the phone, so it can't be read-only...
Any hints?
Thank you very much!
Alberto.
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