From owner-freebsd-hackers Tue Apr 4 23:32:36 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id XAA04578 for hackers-outgoing; Tue, 4 Apr 1995 23:32:36 -0700 Received: from gndrsh.aac.dev.com (gndrsh.aac.dev.com [198.145.92.241]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id XAA04572 for ; Tue, 4 Apr 1995 23:32:32 -0700 Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.8/8.6.6) id WAA09825; Tue, 4 Apr 1995 22:32:19 -0700 From: "Rodney W. Grimes" Message-Id: <199504050532.WAA09825@gndrsh.aac.dev.com> Subject: Re: Colorado Jumbo 250MB ft, and FreeBSD 2.0R To: phk@ref.tfs.com (Poul-Henning Kamp) Date: Tue, 4 Apr 1995 22:32:19 -0700 (PDT) Cc: steve2@freefall.cdrom.com, freebsd-hackers@FreeBSD.org In-Reply-To: <199504050622.XAA06938@ref.tfs.com> from "Poul-Henning Kamp" at Apr 4, 95 11:22:44 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Content-Length: 818 Sender: hackers-owner@FreeBSD.org Precedence: bulk > > > Is this really the right thing to do? Somehow I have the feeling that > > 1 second is plenty of time for a seek operation to complete for any > > given floppy drive and the real bug is in the DELAY code. > > Hum, some of these commands require quite a number of "steps" to be taken, > 50 or so I belive. What if this particular machine initializes the step > rate to something slow like 20ms ? The first command we do after a controller reset in fd.c is to set the step rate to 3mS, head unload time to 240mS and the head load time to 2mS, and if we can't do that the probe is over, we well never get to the attach code that is having the problem :-) -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD