From owner-freebsd-hackers Thu Feb 6 14:14:53 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id OAA09920 for hackers-outgoing; Thu, 6 Feb 1997 14:14:53 -0800 (PST) Received: from gwa.ericsson.com (gwa.ericsson.com [198.215.127.2]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id OAA09904; Thu, 6 Feb 1997 14:14:30 -0800 (PST) Received: from mr1.exu.ericsson.se (mr1.exu.ericsson.com [138.85.147.11]) by gwa.ericsson.com (8.8.2/8.8.2) with ESMTP id QAA29640; Thu, 6 Feb 1997 16:13:54 -0600 (CST) Received: from noah.lmc.ericsson.se (noah.lmc.ericsson.se [142.133.1.1]) by mr1.exu.ericsson.se (8.7.1/NAHUB-MR1.1) with ESMTP id QAA20863; Thu, 6 Feb 1997 16:13:53 -0600 (CST) Received: from jello.lmc.ericsson.se (jello.lmc.ericsson.se [142.133.28.34]) by noah.lmc.ericsson.se (8.8.3/8.8.3) with ESMTP id RAA08788; Thu, 6 Feb 1997 17:13:51 -0500 (EST) Received: (from lmcsato@localhost) by jello.lmc.ericsson.se (8.8.3/8.8.3) id RAA02105; Thu, 6 Feb 1997 17:13:55 -0500 (EST) Message-Id: <199702062213.RAA02105@jello.lmc.ericsson.se> MIME-Version: 1.0 (OpenStep Mail Solaris OpenStep-1.1b-sparc-05 Nov 1996 Version 1.1) Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received: by NeXT.Mailer (Solaris OpenStep-1.1b-sparc-05 Nov 1996 Version 1.1 .RR) From: Samy Touati Date: Thu, 6 Feb 97 17:13:54 +0500 To: Terry Lambert Subject: Re: serial ports at 230k cc: pst@jnx.com (Paul Traina), hackers@FreeBSD.ORG, bde@FreeBSD.ORG References: <199702062131.OAA17929@phaeton.artisoft.com> Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by freefall.freebsd.org id OAA09909 Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk So this means that if you put a 16650 UART (it's not a typo) you can still use the same driver and achieve 128k unstead of just 115,2k ? Samy The hardware doesn't support it, unless you changeout your clock crystal (assuming it isn't using an on-board clock generator in an ASIC containing it and the UART both). All the driver does is translate manifest conatants to bit patterns, so it doesn't care if B300 (for instance) really makes the UART go into 300 baud mode or not. 8-). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.