From owner-freebsd-mobile Wed Mar 5 18:23:01 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id SAA03386 for mobile-outgoing; Wed, 5 Mar 1997 18:23:01 -0800 (PST) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id SAA03331 for ; Wed, 5 Mar 1997 18:22:35 -0800 (PST) Received: (from msmith@localhost) by genesis.atrad.adelaide.edu.au (8.8.5/8.7.3) id MAA08990; Thu, 6 Mar 1997 12:51:59 +1030 (CST) From: Michael Smith Message-Id: <199703060221.MAA08990@genesis.atrad.adelaide.edu.au> Subject: Re: sio probes broken in PAO-970210? In-Reply-To: <199703060203.CAA220647@out2.ibm.net> from Steve Sims at "Mar 5, 97 09:00:17 pm" To: SimsS@IBM.Net (Steve Sims) Date: Thu, 6 Mar 1997 12:51:59 +1030 (CST) Cc: msmith@atrad.adelaide.edu.au, nate@mt.sri.com, freebsd-mobile@freebsd.org X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-mobile@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Steve Sims stands accused of saying: > > Historically, Compuke laptops have failed [5] and [8]. I've had success > with some PAO / 2.1.x combinations, but 2.2-GAMMA fails regardless of > whether PAO is or isn't installed. Ok, so it's the stupid UART that they're using. Are you able to open the unit and locate the UART or the multi-IO chip that's actually being used? You may be able to track down a datasheet for the part, which would help in working out the "right" thing to do. > I've tried upping the DELAYs in sio.c (as recommended by Bruce) but it > doesn't help 2.2-GAMMA. This includes the one between the setting of failures[4] and the test for setting failures[5]? This would be the critical one IMHO. You could also try reading the IIR several times, in the hope that it just takes some encouraging to go away. > Back into the sioprobe() code again, I guess.... You could try forcing the probe to succeed, and see if the port works properly. It's almost worth having a flag to do this. > ...sjs... -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[