Path: utzoo!censor!geac!torsqnt!hybrid!scifi!bywater!uunet!samsung!sol.ctr.columbia.edu!emory!rsiatl!nanovx!msa3b!kevin
From: kevin@msa3b.UUCP (Kevin P. Kleinfelter)
Newsgroups: comp.unix.aix
Subject: YAASPP Solved!
Message-ID: <1498@msa3b.UUCP>
Date: 17 Jan 91 18:56:06 GMT
Organization: Dun and Bradstreet Software, Inc., Atlanta, GA
Lines: 22

Recently I posted about a serial port problem.  The gist of the problem
was that serial ports were going dead, requiring a reboot to activate them.

In the course of diagnosing the problem, we discovered that "pdisable -a"
did NOT drop DTR to the modems... SOMETIMES.  We did not have HUPCL
in LOGMODES for the port, but we did have it for RUNMODES.  If someone
had not logged-in on a port, pdisabling the port did not drop DTR.

In other words, if HUPCL is not set (i.e. "stty -hupcl"), then
pdisableing a port does not drop DTR.  I assert that this is a bug.
True or false?


GLOSSARY

YAASPP - Yet Another AIX Serial Port Problem
DTR - Data Terminal Ready (If you don't know it, I can't explain it.)
-- 
Kevin Kleinfelter @ Dun and Bradstreet Software, Inc (404) 239-2347
{emory,gatech}!nanovx!msa3b!kevin

Look closely at the return address.  It is nanovx and NOT nanovAx.