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From: rt@cpsc53.UUCP (Ron Thompson)
Newsgroups: net.micro.att,net.unix-wizards
Subject: Re: 3B2/300 uucp ports & Permissions
Message-ID: <100182@cpsc53.UUCP>
Date: Mon, 28-Apr-86 22:01:54 EDT
Article-I.D.: cpsc53.100182
Posted: Mon Apr 28 22:01:54 1986
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> 
> All this raises the more useful question:
> 
> 	1. Can the 3B2 control its outgoing DTR signal?

Let's see if I can get this right-
The open raises it, setting BAUD to 0 lowers DTR.  It can't be
made to go high again without a close and successive open.
> 
> 	2. Can a tty port be opened without the incoming CD signal
> 	   being high? 

I think the flag NODELAY (spelling), for the open does this.
-- 
  Ron Thompson		AT&T Information Systems	Customer Programming  
  (404) 982-4217        Atlanta, Georgia		Services Center	      
  ..{ihnp4,akgua}!cpsc53!rt             (Opinions expressed are mine alone.)