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From: root@cybernet.com (Mark Taylor)
Newsgroups: comp.os.386bsd.questions,comp.os.386bsd.development
Subject: Re: Multiport support (Digiboard) under FreeBSD 1.1.5.1
Date: 18 Aug 1994 23:11:22 GMT
Organization: Cybernet Systems, Inc.
Lines: 22
Distribution: world
Message-ID: <330pqq$cr7$1@heifetz.msen.com>
References: <1994Aug17.042726.2055@atlas.com>
NNTP-Posting-Host: 192.245.33.55



The DigiBoard series of multi-port serial boards are not supported under FreeBSD.
 Unless they have the same interrupt sharing mechanism as the AST boards, or are
similar to the BocaBoards.

I have a FastComm 4W 4-port board that is not explicitely supported by FreeBSD,
but it does work fine.  The board is not used under high-load situations (the
machine it is on is relatively passive), so I have no performance data.  It does
support up to 115.2 kbps, though I use it as 4800 and 9600 bps.

I had to put a hack into 1.1.Beta to get it to work there (thanks to Bob Wilcox
for providing that hack).  It was incorporated into 1.1.5, and possibly 1.1.

If the multiport board that you are interested in has one shared IRQ, I'd say
that chances are that you can get it to work, with some (possibly alot) of elbow
grease (sio.c is not that complicated if you know something about IRQs and serial
chips).


-Mark Taylor
mtaylor@cybernet.com