Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!gatech!dscatl!nanovx!msa3b!kevin
From: kevin@msa3b.UUCP (Kevin P. Kleinfelter)
Newsgroups: comp.sys.ibm.pc.rt
Subject: Re: AIX Carrier Detect Problem
Summary: not quite
Message-ID: <671@msa3b.UUCP>
Date: 18 Jul 89 14:30:02 GMT
References: <644@msa3b.UUCP> <786@ctisbv.UUCP> <3680@portia.Stanford.EDU>
Organization: Management Science America, Inc., Atlanta, GA
Lines: 23

In article <3680@portia.Stanford.EDU>, karish@forel.stanford.edu (Chuck Karish) writes:
> In article <786@ctisbv.UUCP> pim@ctisbv.UUCP (Pim Zandbergen) wrote:
> >I have found out that "stty clocal" or "stty -clocal" have no effect in AIX.
> >You select modem control *once* when you run "devices", afterwards
> >you cannot change it.
> 
> All `devices' seems to do with these parameters is to edit the
> appropriate entry in /etc/ports.  It would seem that parameters not

Not quite true.  It also does a "mknod c /dev/tty0 5 96" for tty0.
The minor device number contains a bit mask which determines modem control.
In order to get modem control, you must have the correct minor device number
AND -clocal.

As near as I can tell, when processing tty devices, "devices updates
	/dev/tty?
	/etc/ports
	/etc/inittab
I see no reason why these things cannot ALL be done manually if desired.
Am I wrong?
-- 
Kevin Kleinfelter @ Management Science America, Inc (404) 239-2347
gatech!nanovx!msa3b!kevin