***     Release Information Information:
***         $Revision:   1.2  $
***         $Date:   Apr 26 1996 12:53:42  $

***     Update: Apr 26, 1996
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*       RELEASE INFORMATION                                                *
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*       RELEASE INFORMATION - PIIXIDE.ADD ver.3.00, PIIXIDE.FLT ver.1.02
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This section describes the incremental changes in the current release of
the PIIX Bus Master IDE Driver for IBM OS/2, version 3.00/1.02, from the
previous release, version 2.06/1.02.

1. PIIX4 support has been added to PIIXIDE.ADD.  It checks if PIIX4 is
present, and enables bus mastering for DMA capable devices.  The ADD
assumes that UltarDMA was properly set up by the BIOS.  It doesn't program
the IDE timings, or the device mode.

2. PIIXIDE.ADD ver.3.00 is backwards compatible with the previous version.

3. INSTALL.EXE and UNINST.EXE have not been updated for PIIX4.
PIIXIDE.ADD and PIIXIDE.FLT must me installed manually on a PIIX4
system (see README.TXT).


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*       RELEASE INFORMATION - PIIXIDE.ADD ver.2.06, PIIXIDE.FLT ver.1.02
****************************************************************************
This section describes the incremental changes in the current release of
the PIIX Bus Master IDE Driver for IBM OS/2, version 2.06/1.02, from the
previous release, version 2.05/1.02.

1. PSP code base changes have been incorporated.  These include bug fixes for
Selective Install issue and spourious trap message during boot on certain
configurations.


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*       RELEASE INFORMATION - PIIXIDE.ADD ver.2.05, PIIXIDE.FLT ver.1.02
****************************************************************************
This document describes the incremental changes in the current release of
the PIIX Bus Master IDE Driver for IBM OS/2, version 2.05, from the previous
release, version 1.05.


1. PIIX3 support was added.  The current release drivers will install and 
enable IDE bus mastering on platforms using 82371FB (PIIX1) or 82371SB
(PIIX3) in conjunction with Intel PCIsets numbered 430FX, 430HX, 430VX. 
On PIIX3 platforms, PIIXIDE.ADD programs and enables the slave IDE timing 
register (SIDETIM).

2. Two PIIX1 configurations are supported: one with the Primary IDE channel
enabled, the other with the Secondary.

3. Bus mastering on CD-ROM devices is supported.  PIIXIDE.FLT was added to
the driver kit.  It replaces IBMIDECD.FLT and enables bus mastering for DMA
capable CD-ROM drives.  The default state for bus mastering on CD-ROM drives
is DISABLED.  It may be enabled with command line parameters on the
PIIXIDE.ADD line in CONFIG.SYS (see README.TXT for details).

4. CD-ROM drives are programmed for the optimum supported DMA/PIO timings.

5. IOCtl interface for SMART drive support was added to PIIXIDE.ADD.

6. Bus mastering is enabled on platforms with Orion chipset, B0 stepping or
later.  Bus mastering is still disabled on Orion steppings earlier then B0.

7. UNINST.EXE un-installs current release drivers (PIIXIDE.ADD and PIIXIDE.FLT),
as well as the previous release (PIIXIDE.ADD only).

8. INSTALL.EXE installs current release drivers (PIIXIDE.ADD and PIIXIDE.FLT),
and can also handle upgrades from the previous release (PIIXIDE.ADD only).

9. PIIXIDE.ADD and PIIXIDE.FLT are based on the latest code base for
IBM1S506.ADD and IBMIDECD.FLT, respectively.