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From: kenh@techbook.com (Ken Haynes)
Newsgroups: comp.sys.novell
Subject: Re: Problems getting Logitech mice to work on our LAN (Followup)
Message-ID: <1990Dec21.161808.28140@techbook.com>
Date: 21 Dec 90 16:18:08 GMT
References: <1990Dec17.154533.9187@irscscm.UUCP> <1990Dec19.164133.2622@irscscm.UUCP>
Organization: TECHbooks of Beaverton Oregon - Public Access Unix
Lines: 29

>responses:
>
>1) Loading mouse.com without the Ethernet card installed in the PC.

This is an interaction between the mouse card and the ethernet card.  Here's
what you do. Find out what I/O ports your mouse card and ethernet card use.
Cards communicate with the rest of the PC through IRQs, I/O ports and 
memory addresses.  Not all cards use all of the above but all will use
at least some. Oh yea, I forgot they also use DMA but I doubt if the mouse
is using DMA.  Get all the information you can about what IRQs, and I/O
ports your using on each one of the cards, not just the mouse and ethernet
cards. LPT ports and COM ports use these things too. Make sure that none
of the IRQs are shared, nor any of the I/O ports.  A program like CHECKIT  
will tell you what IRQs are currently being used.  Consult your documentation
on all the cards and write down what each card is currently using, and is
capable of using.  Figure out a combination where none of the cards are
attempting to use any other cards IRQ or I/O or DMA or whatever.  Be warned
there may not be a workable solution!  If you are using 8 bit ethernet cards
they will not have the upper IRQ capability of ATs or AT bus class machines.
You will have to get 16 bit cards with more options if you run out of 
options.  Good Luck!  If you need additional help you can call me at
(503) 627-0149.

Ken
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