From owner-freebsd-hackers  Thu Dec 22 04:42:37 1994
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Date: Thu, 22 Dec 1994 23:37:45 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199412221237.XAA04236@godzilla.zeta.org.au>
To: bde@zeta.org.au, burg@burg.is.ge.com
Subject: Re: bidirectional ports ?
Cc: hackers@freebsd.org
Sender: hackers-owner@freebsd.org
Precedence: bulk

>Yes, of course getty has /dev/ttyd0 open. That is exactly the problem.
>How can I start a getty without without it opening the device?

Don't have carrier present when there is no connection.  Then getty will
block while opening the device and "ps lax" will show /usr/libexec/[getty]
sleeping on "siodcd".

Bruce