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Date: Tue, 14 Mar 1995 18:46:07 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199503140846.SAA13104@godzilla.zeta.org.au>
To: freebsd-hackers@FreeBSD.org, j@uriah.heep.sax.de
Subject: Re: calling up ddb from a comconsole
Sender: hackers-owner@FreeBSD.org
Precedence: bulk

>Had a hard time getting this machine up again...  This once happened
>to work on a 2.0 box (actually, it still works).  It uses a BREAK
>character to trigger DDB.  The patch is rather complex since it
>adds another argument to siointr1 in order to pass the unit # down
>(and decide if this port has been the console port).

It should use the (unimplemented) `unit' member in the com struct to
avoid bloating the interface.

Bruce