From owner-freebsd-hackers Thu Feb 1 09:39:02 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id JAA12529 for hackers-outgoing; Thu, 1 Feb 1996 09:39:02 -0800 (PST) Received: from brasil.moneng.mei.com (brasil.moneng.mei.com [151.186.109.160]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id JAA12524 for ; Thu, 1 Feb 1996 09:38:57 -0800 (PST) Received: (from jgreco@localhost) by brasil.moneng.mei.com (8.7.Beta.1/8.7.Beta.1) id LAA09182; Thu, 1 Feb 1996 11:37:56 -0600 From: Joe Greco Message-Id: <199602011737.LAA09182@brasil.moneng.mei.com> Subject: Re: serial ports on shared irq To: didier@omnix.fr.org Date: Thu, 1 Feb 1996 11:37:55 -0600 (CST) Cc: hackers@freebsd.org In-Reply-To: from "didier@omnix.fr.org" at Jan 31, 96 08:05:25 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hackers@freebsd.org Precedence: bulk > hi > > is it possible to use serveral serial port on the same irq (4 port board) > > thanks Yes. Here's a "BlackBoard" something or other, similar to other 4port cards: device sio4 at isa? port 0x200 tty flags 0x0705 device sio5 at isa? port 0x208 tty flags 0x0705 device sio6 at isa? port 0x210 tty flags 0x0705 device sio7 at isa? port 0x218 tty flags 0x0705 irq 12 vector siointr Set for ports at 0x200 and interrupt 12 obviously enough. Don't forget to include COM_MULTIPORT in your options. ... Joe ------------------------------------------------------------------------------- Joe Greco - Systems Administrator jgreco@ns.sol.net Solaria Public Access UNIX - Milwaukee, WI 414/546-7968