Release Notes for
                            Digi RealPort Linux
                     Version 1.0 Release 0, 04/27/2000
                                      
                          Release Notes 93000359A
                         Software Package 40002086A
                         Software Manual 92000582A
     _________________________________________________________________
   
  Contents
  
    1. Introduction
    2. Supported Products
    3. Enhancements
    4. Bug Fixes
    5. Know Limitations
    6. Printers
    7. Ditty
    8. Configuration
    9. Documentation
   10. History
     _________________________________________________________________
   
  Introduction
  
   Digi RealPort Linux is a driver package for the PortServer and
   PortServer II products. It is assumed that TCP/IP is running on the
   system and is properly configured. It is also useful, though not
   necessary, for the Wish package to be installed, or some other TCL
   interpreter, in order to use the RealPort Manager configuration tool.
   
   Supported Linux Kernels
     * 2.2-based kernels on Intel and Alpha platforms
     * 2.0-based kernels equal or newer than 2.0.36 on Intel platforms
       
   The driver package has been tested with the following Linux
   distributions:
     * RedHat 5.2
     * RedHat 6.0
       
  Supported Products
  
     * PortServer
     * PortServer II
     * Digi EM (extension modules)
       
  Enhancements
  
     * Added a new proc file: /proc/dgrp/info. This file allows one to
       determine the value of a number of state variables associated with
       the driver, including the driver revision.
       
  Bug Fixes
  
     * Continued refinement of the GUI. The GUI is now distributed as a
       single file, rather than a collection of "tcl" files.
     * dgrp_cfg_node now does validity checking of its ID and COUNT
       parameters.
       
  Known Limitations
  
     * There is a problem with the SBRK ioctl. When a BRK is sent no more
       data is transmitted until the port is closed.
     * The ports on EM modules are observed to perform at a slightly
       reduced speed during throughput testing.
     * There is no support as of yet for the transparent print devices.
     * The ditty PRINTER option is not yet supported.
       
  Printers
  
   There is no transparent print support as of yet.
   
  Ditty
  
   The ditty program provided with this package is named "ditty-rp" so as
   to not interfere with any other versions of ditty installed on the
   system (for use with other Digi products).
   
  Configuration
  
   There is a package of configuration tools provided that are, by
   default, located in the /usr/bin/dgrp/config directory. There are
   scripts for using the command line to add and remove PortServers, as
   well as the RealPort Manager. This is essentially a graphical front
   end for the scripts and a visual tool for monitoring individual
   PortServer ports.
   
  Documentation
  
   The following manpages are provided: ditty-rp(1), drpd(8), dgrp(8),
   dgrp_cfg_node(8), dgrp_gui(8).
   
  History
  
     * Version 0.1-1 - pilot release in January 1999
     * Version 0.1-3: added new scripts to autoload the driver on system
       startup and initialize any PortServers configured in
       /etc/dgrp.backing.store
     * Version 0.1-4: decided to install dgrp.o to the /usr/bin/dgrp
       directory, and then link in the postinstall phase to a suitable
       /lib/modules/*/misc directory. This avoids the problem of having
       the path to dgrp.o hardcoded in the spec file.
     * Version 0.1-5: a minimum break time of 250ms is now enforced. A
       PPP hang problem was resolved. Continued enhancements of the
       packaging.
     * Version 0.1-7: A first pass at cleaning up the code was completed
       for beta release. All driver build warnings have been fixed.
       Appropriate part numbers have been correctly placed in the
       appropriate documents. A useful driver revision number is now
       placed in the console log when the module is loaded.
       
   
    Please email problem reports to [1]Ann-Marie Westgate

References

   1. mailto:westgate@remotepoint.com