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To: youshi10@u.washington.edu
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: freebsd-hackers@FreeBSD.ORG
Subject: Re: Is showing all attributes for RS232 port possible in FreeBSD?
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In message: <4B29E098-F409-490F-86F1-380CFE1165FC@u.washington.edu>
            Garrett Cooper <youshi10@u.washington.edu> writes:
: Hi,
: 	I was just wondering if there was any way where I could program with  
: C, such that I could view information regarding the extra pins on a  
: DB9 serial port other than just TXD and RXD, ie the DTS, CD, CTS,...  
: etc ports.
: 	I am trying to figure out how exactly Hyperterm works as part of a  
: project with programming a PIC microprocessor.

man 4 tty

Warner