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Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!netnews.upenn.edu!dsinc!spool.mu.edu!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!hpscit.sc.hp.com!news.dtc.hp.com!col.hp.com!csn!carbon!mercury.cair.du.edu!troby From: troby@du.edu (Thorn Roby) Subject: Multiport sio without "master port" interrupt? (1.1 RELEASE) Message-ID: <Cq0DBI.Lp@du.edu> Sender: news@du.edu (USENET News System) Organization: University of Denver Date: Wed, 18 May 1994 17:16:29 GMT Lines: 24 I posted this query a few weeks ago, asking specifically about the BOCA IOAT66 card. I suspect the problem may apply to other multiport cards without a designated "master port" as well. Does anyone know the trick to getting these to work? I've compiled a MULTIPORT but non-BIDIRECTIONAL kernel (these ports are for outgoing fax modems, no login required). All ports are recognized at boot time, and they do function on both transmit and receive, but operations seem to be delayed - for example, if I send one AT, I get no response, but if I send it again I get "OK". There seems to be no loss of characters within a given transmission, and the ports work fine if set up as standard non-multiport sio0/sio1. This card does have an I/O address assigned to a shared interrupt, but I don't think it corresponds to an actual I/O port address. Any hints appreciated. If it's relevant, this problem occurs even when only one port is accessed at a time. Looking at the "-current" sio.c, there appears to be code that is relevant to this problem. Anyone know if I can use that version of sio.c together with a RELEASE kernel? The changes looked fairly significant. -- Thorn Roby troby@diana.cair.du.edu CARL Systems, Inc. troby@carl.org 3801 E. Florida Ave.,Suite 300, Denver, CO 80210 (303) 758-3030