From owner-freebsd-questions Fri Mar 14 12:53:35 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id MAA11428 for questions-outgoing; Fri, 14 Mar 1997 12:53:35 -0800 (PST) Received: from horst.bfd.com (horst.bfd.com [204.160.242.10]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id MAA11411 for ; Fri, 14 Mar 1997 12:53:30 -0800 (PST) Received: from harlie.bfd.com (bastion.bfd.com [204.160.242.14]) by horst.bfd.com (8.8.5/8.7.3) with SMTP id MAA03699; Fri, 14 Mar 1997 12:53:18 -0800 (PST) Date: Fri, 14 Mar 1997 12:53:18 -0800 (PST) From: "Eric J. Schwertfeger" To: Nick Liu cc: questions@freebsd.org Subject: Re: Multiport Serial card from ByteRunner In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Fri, 14 Mar 1997, Nick Liu wrote: > > I asked for a catalog from the ByteRunner. In the attached letter it > indicated that FREEBSD 2.1 supported it. > > The discussion I found in the archive all said the same thing: only up to > 115200 bps. > > What is going on here? Which FREEBSD support this serial card up to 460K? > Please e-mail me. Depends on which ByteRunner Card. Right now, No FreeBSD version that I'm aware of supports 16650 software selection of baud rates higher than 115.2kbps. I plan on rectifying this, but that certainly won't be anytime in the next month or so. However, some of the ByteRunner cards allow you to feed a higher than standard clock to the UART. This doesn't have to be supported by software, as the software will set 115.2kbps and get 2 or 4 times that. I understand that there are some kernel tweaks that need to be done to make this work reliably. I've got some cards I'm going to play with, but I haven't actually set them up yet.