From owner-freebsd-questions Sun May 17 11:38:25 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA25744 for freebsd-questions-outgoing; Sun, 17 May 1998 11:38:25 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from techpower.net (hometeam@techpower.net [205.133.231.1]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA25726 for ; Sun, 17 May 1998 11:38:15 -0700 (PDT) (envelope-from hometeam@techpower.net) Received: from localhost (hometeam@localhost) by techpower.net (8.8.8/8.8.8) with SMTP id KAA01167; Sun, 17 May 1998 10:38:09 -0400 (EDT) (envelope-from hometeam@techpower.net) Date: Sun, 17 May 1998 10:38:09 -0400 (EDT) From: Jt To: John Kelly cc: questions@FreeBSD.ORG Subject: Re: sio driver In-Reply-To: <355f23bc.87309735@mail.cetlink.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Yes could I see your kernel config file on how you change the fifo buffer? I am running stable I wonder if this option is available in the 2.2.6 release? hometeam@techpower.net --We cannot all be masters, nor all masters Cannot be truly follow'd-- -----BEGIN PGP MESSAGE----- Version: 2.6.2 owEBqwBU/4kAlQMFADRCxNWhsddKSTR+6QEBelED/jzeC3btZfqSdIfrNoCgwUJJ iNQ33UQoMyJ2ygkfl72xP5J79yml/F4P73GnNaDVbaMOmOG2NNAi5ElE73wRh54U 17kH+n5XnYeqekV8T2TG2Q6ex3UotXPyZ1vvrCrSxapOz6a4hh0GQeA55rcwLy2W ROHwxfvaVsrX5iVOkRoerBFiC21lc3NhZ2UudHh0AAAAAA== =jCvF -----END PGP MESSAGE----- On Sun, 17 May 1998, John Kelly wrote: > On Sun, 17 May 1998 06:49:11 -0400 (EDT), Jt > wrote: > > >Yeah I was trying for the 230000 I am isdn that was the whole > >purpose of the 16650 to increase thoughput. > > Don't define it to SIO as a 650. Define it as a 550. The only > trouble I ever had was when I tried to tell SIO the UART was a 650 > (which it actually is). > > There's an obscure setting (in -current, I don't know about -stable) > where you can tell SIO that a 550 UART has a transmit FIFO larger than > 16 bytes. That's the only real benefit of trying to define it as 650 > anyway, because you get the larger receive FIFO by default, no matter > whether defined as a 650 or 550. > > I can post my serial port kernel config if you want to see how to use > the transmit FIFO size setting when defined as a 550. > > >jkh mention that freebsd could handle 230 no problem just the 115000 > >16550 was the restriction. > > Not if your serial card has a 2x clock jumper. I run 230,400 on > either a 650 or 550 with no errors. > > >it runs in windows 95 fine on the 230000 settings. > > It only works with serial cards which have 2x or 4x jumper settings. > You tell SIO the speed is 115,200, and the 2x clock jumper makes it > really run at 230,400. > > Works great here with a 3Ccom Impact IQ ISDN at 128k. I run multiple > ports, one upstream ISDN and several downstream modems, no errors. > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message