From owner-freebsd-questions Mon Dec 7 08:35:17 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA15559 for freebsd-questions-outgoing; Mon, 7 Dec 1998 08:35:17 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from gw.jmrodgers.com (gw.jmrodgers.com [205.247.224.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA15551 for ; Mon, 7 Dec 1998 08:35:15 -0800 (PST) (envelope-from meuston@jmrodgers.com) Received: from max (max.jmrodgers.com [205.247.224.209]) by gw.jmrodgers.com (8.8.8/8.8.8) with SMTP id LAA16721; Mon, 7 Dec 1998 11:33:30 -0500 (EST) (envelope-from meuston@jmrodgers.com) Received: by localhost with Microsoft MAPI; Mon, 7 Dec 1998 11:33:29 -0500 Message-ID: <01BE21D5.697E7B40.meuston@jmrodgers.com> From: Max Euston To: "'Thomas Good'" , "FreeBSD-questions@FreeBSD.ORG" Subject: RE: Serial Comms Question Date: Mon, 7 Dec 1998 11:33:27 -0500 Organization: J.M. Rodgers Co., Inc. X-Mailer: Microsoft Internet E-mail/MAPI - 8.0.0.4211 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Monday, December 07, 1998 8:35 AM, Thomas Good [SMTP:tomg@nrnet.org] wrote: > My USR 28.8 interal ACU (sio3 - cuaa3) is misbehaving. I am using HDB [snip] > But...I wait for local echo which is not forthcoming. When I hit CR I get > one word from my SCO login prompt echoed back. I press enter a few times > and eventually see my entire login prompt but am unable to send chars [snip] Check the IRQ setting on your modem. In the DOS world, COM 1&3 share IRQ 4 and COM 2&4 share IRQ 3. IIRC shared interrupts don't work in Unix so COM 3 uses IRQ 5 and COM 4 uses IRQ 9 by default. You can change this by typing '-c' at the bootup screen or by compiling a custom kernel. Good Luck, Max To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message