Subject: Re: Serial support
To: Holger B. Austinat <hba1@cec.wustl.edu>
From: Jonathan Sturges <jonathan@cc.odu.edu>
List: port-vax
Date: 04/07/1996 23:56:02
On Sun, 7 Apr 1996, Holger B. Austinat wrote:
> Has anyone got serial support working? On our uVax II (of course running
> 1.1A), the serial cards (two DHV-11) are properly detected, the devices
> were created with MAKEDEV (ttyS0-ttySf), and the attached terminal is
> working.
>
> But we can't get any data sent on serial lines. Can someone who has
> working serial support tell us exactly what he did?
I'm using modems, not terminals, so once I got this far I built C-Kermit
190 and tried talking to the modem; I had no problems.
Check these things out:
1) Make sure that the port you *think* is ttyS0 really is. I was
confused about this at first, so I guessed. And the first time, I
guessed wrong. I had the modem in ttyS3, I think. The cab kit isn't
marked.... :(
2) Make sure your cabling to the terminal is kosher (watching the
handshaking and all).
3) Turn the ports 'on' in /etc/ttys, and make sure their corresponding
/etc/gettytab entry is correct. If you change the /etc/ttys and/or
/etc/gettytab files, make sure you either reboot or do a 'kill -HUP 1'
for the changes to take effect.
good luck,
Jonathan