Subject: Re: [Bluez-users] RS232 Control Signals.
From: Marcel Holtmann <marcel@holtmann.org>
To: BlueZ Mailing List <bluez-users@lists.sourceforge.net>
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Date: Mon, 10 Jan 2005 17:19:55 +0100

Hi Luiz,

>   I'd like to know if the RS232 Control Signals are available when
> using Bluetooth through Serial Emulation whith the rfcomm program.
> 
>   I'm writing a program which should detect when a serial device
> (which also suports bluetooth) is turned off. The program does its
> job using an ioctl() call:
> 
> ioctl(fd, TIOCMGET, &status);
> 
>   and then checking for the DSR signal.
> 
>   It works as expected for the (true) serial port, but when I use
> Bluetooth through Serial Emulation with the rfcomm program the signal 
> doesn't change its state, and my program fails.
> 
>   Are the RS232 Control Signals available?

I think they are missing. However feel free to send a patch for the
kernel that implements support for it.

Regards

Marcel


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