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Serial port programming question

To: "'linux-india-general@xxxxxxxxxxxxxxxxxxxxx'" <linux-india-general@xxxxxxxxxxxxxxxxxxxxx>
Subject: Serial port programming question
From: Nitin Kakkar <Nitin.Kakkar@xxxxxxxx>
Date: Mon, 18 Dec 2000 12:04:45 -0800

Hi
   I need to write a software which communicates with a hardware on Serial
port. It needs to use RTS line at serial port as on/off switch.  Thats is
before sending characters the software should turn on RTS line and after
sending characters it should turn off RTS line.  The software will run in
user address spece. 

Can any one please tell me how can I  set/reset rts line.
I am using kernel 2.0.36, shipped with older RH 5.0.

Regards
Nitin

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