
NI-488.2M SB-GPIB Driver for SunOS 4.1.x.
Release Notes
Copyright 1994 National Instruments Corporation.
All Rights Reserved.



			Release Notes

    Running under SunOS Release 4.1.1
    ---------------------------------
    Due to a bug in SunOS Version 4.1.1, the SB-GPIB driver data is corrupted
    and causes a system crash when ib commands (ibrd, ibwrt, etc.) are run.  
    One of the following procedures will correct the problem.

    1.  If you have the 4.1.1 version of the file sys/sun4c/openprom_xxx.c,
        edit line 155(within the routine sbus_decode_regprop) to read as follows
        and then rebuild your kernel.

        for (i = 0, regp = dip->devi_reg; i < dip->devi_nreg; ++i, ++regp) {
                                                                 ^^^^^^^^
                                                                    new
   
    2.  If you do not have the source code for openprom_xxx.c but you can 
	rebuild your kernel, use the openprom_xxx.o file provided with the 
	NI-488.2M driver and rebuild your kernel before installing the 
	SB-GPIB driver.

    3.  If you cannot rebuild your kernel contact Sun Microsystems to
        get a correct copy of the SunOS 4.1.1.



     UNIX Signals
     ------------
     If you want to make any device calls from within a UNIX signal interrupt
     routine, you must first turn off automatic serial polling in the driver.
     Any such configuration changes must be made before the driver is loaded.
     By default, automatic serial polling is turned on.



     Upgrade for Sparc 2 motherboards
     --------------------------------
     If you have a Sparc 2 with an ATT cache controller and your system
     is "panicking" then you may need to upgrade the motherboard.  The 
     cache controller is opposite the power supply and has "ATT cache 
     controller" written on it.  The ECO that corrects the problem is 
     WO_02798.


     About the "Getting Started Manual"
     ----------------------------------
     The current driver is the "NI-488.2M Driver for the Sun SPARCstation".

     The reference manual included in the kit is the "NI-488.2M Software 
     Reference Manual".
