Subject: Re: /dev/cuaXX & other things
To: None <current-users@NetBSD.org>
From: Michael Graff <firstname.lastname@example.org>
Date: 12/21/1994 22:33:34
Does Ultrix have one device, but has a non-exclusive mode where something can
be ``locked out'' when something else wants to use it?
getty opens /dev/tty00. Set non-exclusive mode.
cu opens dev/tty00, without setting non-exclusive mode. The kernel ignores
getty's connection now, and cu owns the port, until done. Then getty
gets it back.
I could be way wrong here, but... ;)