*BSD News Article 4931


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Xref: sserve comp.sys.ibm.pc.hardware:31046 comp.unix.bsd:4977 comp.unix.sysv386:23651
Newsgroups: comp.sys.ibm.pc.hardware,comp.unix.bsd,comp.unix.sysv386
Path: sserve!manuel!munnari.oz.au!spool.mu.edu!umn.edu!umeecs!nova!ellis
From: ellis@nova.gmi.edu (Stew Ellis)
Subject: IRQ2 trace on video card, which one?
Message-ID: <ellis.716302427@nova>
Keywords: irq2, interrupt conflicts, video, serial and net cards
Sender: news@zip.eecs.umich.edu (Mr. News)
Organization: GMI Engineering&Management Institute, Flint, MI
Date: Sat, 12 Sep 1992 12:53:47 GMT
Lines: 25


I am running Intel UNIX SYSVR4.0.3.  I seem unable to talk to the Belltech
ICC serial ports, even though the drivers look to be installed on startup.
The last step of the boot process when the onboard code for the ICC board is
supposed to be loaded, I get the error message "/dev/icc: device not found".
There is a dev entry for the /dev/icc, as well as each of the 12 ports, with
and without modem control.  I believe this started when I installed a Boca
SVGA card (with the ET4000 chip). Although I had not used the ICC ports
before, I am sure the ICC code used to load correctly.  The ICC cards expect
to use IRQ10.  Although I am not yet hanging on a network, I also have a net
card strapped for IRQ2, that will be recognized as IRQ9.

I would like to prophylactically disable the IRQ2 line on the video board.
Although I have a pinout description, I am having trouble bringing
everything completely into focus.  My pinout shows IRQ9 as pin 7.  That is
the one I need to disable on the video card, right?  How do I identify which
side and end of the board to start counting from?

If someone has other ideas, please share them with me.  Thanks in advance.

--
--                                                        ___________________
  R.Stewart(Stew) Ellis, Assoc.Prof., (Off)313-762-9765  /   _____  ______ 
  Humanities & Social Science,  GMI Eng.& Mgmt. Inst.   /        / /  /  / /
  Flint, MI 48504      ellis@nova.gmi.edu              /________/ /  /  / /