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From: John Baldwin <jhb@FreeBSD.org>
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Date: Wed, 14 Jul 2004 20:50:24 -0400
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cc: Cyrille Lefevre <clefevre-lists@9online.fr>
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cc: Marcel Moolenaar <marcel@xcllnt.net>
Subject: Re: [TEST/REVIEW/HEADSUP] tty drivers mega-patch
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On Wednesday 14 July 2004 06:46 pm, Cyrille Lefevre wrote:
> cua* are supposed to be the line to talk to a modem w/ modem control
> (CD, etc.) while tty* are not supposed to talk to a modem and doesn't
> have modem control.

That's backwards.  tty* will hang on open() until CD, while cua* will not.  I 
use cu with /dev/cua* a lot to do manual modem commands to dial into boxes.  
However, /dev/tt* is used in /etc/ttys on the boxes I dial into to run a 
getty on the receiving modem.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org