Release Notes 93000575_A

                        Digi C/X PCI & Xem PCI Systems
                          Asynchronous Device Driver 
                                 Version 2.2.0

                          AIX 5.0, 5.1, 5.2 and 5.3
                               32bit and 64bit

                       Software Package P/N 40002506_G

                                   12/05/05


CONTENTS
Section  Description
1        Introduction
2        Supported Products
3        Enhancements
4        Bug Fixes
5        Driver Installation
6        History


1. INTRODUCTION

    The Digi AIX C/X & Xem PCI device driver makes the ports on a (C/X) C/CON 
    concentrator or (Xem) PORTS/em module appear as though they are local 
    AIX tty devices directly attached to the computer.


2. SUPPORTED PRODUCTS

    C/X PCI adapter and associated C/CON concentrators.
    Xem PCI adapter and associated PORTS/em modules.


3. ENHANCEMENTS

    Added support for AIX 5.x 64bit.

    Dropped support for AIX 4.x, ISA products and dscreen.


4. BUG FIXES

   Fixed problems where a PCI board would work in some PCI slots
   in a system, but not others.


5. DRIVER INSTALLATION

    You should have received a driver package with this file.  
    Assuming you copied this file to your /tmp directory, you can install the
    driver from the command line with:

        installp -ad /tmp/<driver_file_name> all

    You may also install with "smit", using the following procedure:

        Select "Software Installation and Maintenance"

        Select "Install and Update Software"

        Select "Install/Update Selectable Software (Custom Install)"

        Select "Install/Update from All Available Software"

        When smit asks you for the "INPUT device / directory for software",
        enter "/tmp/<driver_file_name>", and hit ENTER.

        Then for "SOFTWARE to install" enter "all" and hit ENTER twice.


    NOTE:  This driver's minor numbering scheme has CHANGED!
           If you are upgrading from a 1.x version based driver,
           you MUST remove all odm entries for your products AND ttys!


6. HISTORY

    Version 1.4.0 - March 3rd, 2000

        Bug Fixes
          A problem with the driver not releasing a memory address in the
          Xem PORTS/em module initialization has been fixed.
          The symptom of this error was only seen in AIX 4.3.2,
          and resulted in a system crash when configuring Xem PORTS/em
          modules or upon boot if the modules were not previously configured.

          An incorrect smit description has been corrected.
          The symptom of this error was smit incorrectly displaying
          ISA Xem modules as PCI Xem modules.

          A FEP/OS problem has been fixed.
          The symptom of this error was seen as the fourth "daisy-chained"
          connected PCI C/X concentrator not being recognized upon
          configuration.

    Version 1.3.0 - June 24, 1999
        Enhancements
          Added support for Xem adapters (PCI & ISA).

    Version 1.2.0 - August 5, 1998
        Bug Fixes
          Fixed a problem with certain ODM entries not being removed upon
          deinstallation of the driver.

          Corrected a busresolve issue seen on systems with more than one
          PCI bus.

    Version 1.1.0 - March 2, 1997
        Bug Fixes
          Fixed a problem downloading remote-rs232 concentrators.

          Fixed a Multi-processor related system hang.

          Fixed a port hang on PCI C/X ttys.

    Version 1.0.0 - February 2, 1997
        Initial product release.