*BSD News Article 28051


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From: mtaylor@cybernet.com (Mark Taylor)
Newsgroups: comp.os.386bsd.questions
Subject: [FreeBSD] Multiport COM drivers
Date: 4 Mar 1994 00:18:07 GMT
Organization: Cybernet Systems
Lines: 20
Sender: mtaylor@max.cybernet.com (Mark Taylor)
Distribution: world
Message-ID: <2l5unv$t54@nigel.msen.com>
NNTP-Posting-Host: 192.245.33.3
Keywords: COM MULTIPORT

I have a FASTCOMM 4-port serial I/O card to be used on a FreeBSD platform.  I was
wondering how to set it up to be used by the OS.  Is anyone else out there using
one of these things?

Do I set up special devices in my kernel config?  Do I disable the two serial
ports on my motherboard, in favor of the 4-port board?  Or can I set the IRQs on
the board to anything I want, and compile a kernel with settings for it?  The
board seems to have the option to set it to many IRQ levels and I/O addresses,
and even comes with a special ROM which gives each serial chip its own IRQ (I
think).

What is the multiport option in the kernel for anyway, and how was it intended to
be used? (with or without the motherboard's com ports?)



-Mark Taylor
mtaylor@cybernet.com