Information File For Madge Networks Ltd. SCO3 UNIX LLI Driver
=============================================================
April 1996
==========

Summary
-------

This file describes how to install the supplied LLI driver.   The  LLI
driver is  for  use with SCO UNIX and Madge Smart Token Ring adapters.

1. Creating a "custom" disk
---------------------------

The Madge LLI driver is installed by using the "custom" program and an
installation disk.   If you  have  received your Madge LLI  driver  on
an  installation  disk  then  you should skip this section and proceed
directly  to  section 2.  This  section  describes  how  to  create an
installation disk with the  installation  disk  image file mdgsco3.img
from the Madge CD or bulletin board.

To create an installation disk:

    a) Log into your SCO UNIX system as "root".

    b) Copy the mdgsco3.img file into the /tmp directory.

    c) Place  a  blank  formatted  disk  3.5 inch disk in drive A: and
       enter the command:

       dd if=/tmp/mdgsco3.img of=/dev/fd0135ds18
      
    d) The  disk  in  drive  A:  is now an installation disk  for your
       Madge LLI driver.


2. Installing the Madge LLI driver with "custom"
------------------------------------------------
  
The Madge LLI driver should be installed with  the  "custom"  program.
Place your  installation  disk  in  drive  A:  and whilst logged on as
"root" enter the command:

    custom

From the menu select,"Install" and then "A new product" and follow the 
instructions.   When  asked  if  you  would  like to  run  "netconfig"
answer yes. 
"netconfig"  will  allow  you to set up one or more adapters  with the
Madge LLI driver.  If you  are unfamiliar with the "netconfig" program
please  consult  the  SCO  network administration documentation.  What
follows are some useful hints on installing the Madge LLI driver.

    a) The Madge LLI drivers are called mtok0, mtok1, mtok2 and mtok3.
       mtok0  should  be  used for the first adapter in your PC, mtok1
       for the second and so forth.

    b) If  you  are upgrading from an earlier version of the Madge LLI
       driver then choose "Reconfigure an element in a chain" from the
       "netconfig" menu, then  choose  to  reconfigure  the chain that
       includes "mtok?" and then choose to reconfigure "mtok?".

    c) If you are installing the Madge LLI driver for the  first  time
       then choose "Add a chain". You will be presented with a list of
       drivers for the top element of the chain, select the 
       appropriate one (this will usually be "sco_tcp"). Next you will
       be presented with a list of elements for the  bottom element in
       the  chain,  choose  one of the Madge LLI Driver elements (i.e. 
       mtok0 for the first adapter).

    d) "netconfig" will ask you what  type  of adapter you have, there
       are four choices:

       AT -  Madge Smart ISA bus adapters  (16/4 AT,  ISA Client, AT/P
       and ISA Client/P).

       EISA - Madge Smart EISA adapters.

       MC   - Madge SMart MC adapters.

       SM16 - Madge Smart 16 adapters.

       PNP  - Madge Smart ISA Client Plug & Play adapters

    e)  ISA Client  and  ISA  Client/P  adapters do not us DMA so when 
        asked for a DMA channel enter "PIO".

    f)  Only one Smart 16 adapter may be installed and  this  MUST  be
        the first adapter installed (i.e. mtok0).

    g)  If you  select  interrupt  2 for an adapter then when SCO UNIX
        boots it  will  display  the interrupt number as 9.  Do not be
        concerned, this is  just  an artifact of the way the two eight
        channel interrupt controllers are chained together.
 
When you have finished configuring the driver you will be asked if you
wish to re-link UNIX. Answer yes.


**** End of README.INF ****
