Subject: which tty device files for talking to serial devices?
To: None <>
From: Klaus Heinz <>
List: tech-userlevel
Date: 06/24/2007 02:16:21

from reading tty(4) I understand that /dev/dty?? are the device files one
should use to talk to an external device connected to one of the serial
ports. Is this correct?

I have found application software that wanted to use /dev/ttyC? and
according to MAKEDEV(8) there is the possibility to create /dev/ttyC?
for "NS16550 (``com'') serial ports".
Is com(4) the correct man page for /dev/ttyC? ?
How does /dev/ttyC? differ from /dev/tty?? and /dev/dty?? ?
Am I supposed to use them?
Why are they not created by default?

com(4) mentions only /dev/dty?? and /dev/tty?? in its FILES section.
MAKEDEV(8) does not mention /dev/dty?? at all.

Everything found on NetBSD/i386 3.0.

This looks confusing to me.