Subject: Re: serial ports
To: The Great Mr. Kurtz [David A. Gatwood] <davagatw@mars.utm.edu>
From: Bill Studenmund <wrstuden@loki.stanford.edu>
List: port-mac68k
Date: 08/20/1996 10:22:23
> Regardless:
> 
> tty00 is the printer port, tty01 is the modem port.

NO! You're thining mkLinux. Under NetBSD, tty00 is the modem port, and
tty01 is the printer port.

I don't know why the mkLinux folks did it backwards. Grr.

(The reason probably stems from Zilog. They define an A and a B port for
the SCC chip, but the B port is addressed at a lower memory location than
the A port. We numbered port A == tty00, they numbered lower memory
address == tty00).

Take care,

Bill