Path: utzoo!attcan!uunet!husc6!rice!sun-spots-request
From: shenkin@cubsun.bio.columbia.edu (Peter Shenkin)
Newsgroups: comp.sys.sun
Subject: two-way communication through the same port under SunOs 4.0?
Message-ID: <175@cubsun.BIO.COLUMBIA.EDU>
Date: 23 Nov 88 03:20:47 GMT
Sender: usenet@rice.edu
Reply-To: Sun-Spots@Rice.edu
Organization: Rice University, Houston, Texas
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Approved: Sun-Spots@rice.edu
Original-Date: Fri, 11 Nov 88 16:46:18 EST
X-Sun-Spots-Digest: Volume 7, Issue 23, message 5 of 12

According to my SunOs 4.0 manuals, as of this release you're supposed to
be able to run a getty on ttya to enable logins, and simultaneously hook
an outgoing modem onto the same hardware port, calling it /dev/cua0.
Whichever application (login or, eg, tip) grabs the port first is supposed
to lock it to other applications.  I've tried this, and I think I have all
my gettytab, ttytab and /etc/remote entries correct, but the getty on ttya
(or ttyd0, or ttym0, no matter how I try it) renders /dev/cua0 busy for
outgoing calls.  According to my manual, this isn't supposed to happen.

This is on a 386i, but a colleague trying the identical things on a 3-160
running 4.0 exhibits the identical symptoms.

Has anyone gotten it to work, or is it a known bug, or what?
-- 
Peter S. Shenkin, Department of Chemistry, Barnard College, Columbia University
New York, NY   10027  NEW TEL !!: (212) 854-1418 (work);  (212) 829-5363 (home)
shenkin@cubsun.bio.columbia.edu    shenkin%cubsun.bio.columbia.edu@cuvmb.BITNET