From owner-freebsd-hackers Sun Jul 23 11:27:26 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.11/8.6.6) id LAA08831 for hackers-outgoing; Sun, 23 Jul 1995 11:27:26 -0700 Received: from sequent.kiae.su (sequent.kiae.su [144.206.136.6]) by freefall.cdrom.com (8.6.11/8.6.6) with SMTP id LAA08825 for ; Sun, 23 Jul 1995 11:27:23 -0700 Received: by sequent.kiae.su id AA20269 (5.65.kiae-2 ); Sun, 23 Jul 1995 22:25:24 +0400 Received: by sequent.KIAE.su (UUMAIL/2.0); Sun, 23 Jul 95 22:25:23 +0400 Received: (from ache@localhost) by astral.msk.su (8.6.8/8.6.6) id WAA00128; Sun, 23 Jul 1995 22:23:56 +0400 To: Terry Lambert Cc: bde@zeta.org.au, hackers@freebsd.org, harry@hgac.com, jkh@violet.berkeley.edu References: <9507230836.AA25387@cs.weber.edu> In-Reply-To: <9507230836.AA25387@cs.weber.edu>; from Terry Lambert at Sun, 23 Jul 95 2:36:50 MDT Message-Id: Organization: Olahm Ha-Yetzirah Date: Sun, 23 Jul 1995 22:23:56 +0400 (MSD) X-Mailer: Mail/@ [v2.40 FreeBSD] From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= aka "Andrey A. Chernov, Black Mage" X-Class: Fast Subject: Re: dial up at > 9600 baud Lines: 30 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Length: 1364 Sender: hackers-owner@freebsd.org Precedence: bulk In message <9507230836.AA25387@cs.weber.edu> Terry Lambert writes: >> >I don't think I quite understand why the previous behaviour was a >> >problem in the first place -- perhas the original poster could explain >> >the rationale for his changes a bit better? >> >> >> The problem: initial port speed 9600, getty speed 38400 f.e., >> port opened on carrier at 9600, modem detects it and set >> connection to 9600 too, _then_ getty change port speed to 38400 >> confusing modem completely. >> >> I understand that problem solves by locking port on 38400 >> initially, but it isn't nice solution, getty must able >> to open port at correct speed setted in its flags. >I guess I still don't understand how the modem magically detects >the port speed when the port sets the baud before it says anything >(like "login: "). I don't know details, but modem is able to determine local interface speed, maybe during initial connect handshake. If modem stays in automatic connect rate selection, it never connects on speed which is greater its local serial interface speed. -- Andrey A. Chernov : And I rest so composedly, /Now, in my bed, ache@astral.msk.su : That any beholder /Might fancy me dead - FidoNet: 2:5020/230.3 : Might start at beholding me, /Thinking me dead. RELCOM Team,FreeBSD Team : E.A.Poe From "For Annie" 1849