                  PCI IDE  Device Driver  Ver 2.1.42
                 

1) Driver Name: VIA Bus Master PCI IDE Driver

2) Description: IDE driver for VIA TECHNOLOGIES, INC.

3) Release Date: 99/09/02

4) Supported Operating Systems: OS/2 Warp 3.0 or Warp 4.0

5) Revision Number: 2.1.42

6) Number of Files: 6

7) Feature List:

   Support transfer mode:
    - PIO Mode
    - Single Word DMA
    - Multiword DMA
    - Ultra DMA Mode 0/1/2


8) Driver installation:

    *************************
    ** Driver Installation **
    *************************

      Boot from the OS/2 hard disk and type the "DDINSTAL" command to install
    the device driver.

                C> DDINSTAL

      After  the  "DDINSTAL",  the  original  CONFIG.SYS  will  be renamed to
    CONFIG.VIA and add two lines into the CONFIG.SYS.

        BASEDEV=VIAIDE.ADD
        BASEDEV=VIACD.FLT



    ************************
    ** Enable/Disable DMA **
    ************************
      The default setting for the hard disk is DMA enabled and for the CD-ROM
    is DMA disabled. You can enable or disable a single device by setting the
    following parameters after VIAIDE.ADD in CONFIG.SYS.

      /A:[0|1]    Select primary or secondary channel.
      /U:[0|1]    Select master or slave device in the same channel.
      /BM         Enable DMA mode.
      /!BM        Disable DMA mode.

    Example:

         BASEDEV=VIAIDE.ADD /A:0 /U:0 /BM /A:1 /!BM

      This setting will enable the DMA mode for the device connected
    under primary channel master position and disable the DMA mode
    for the entire secondary channel.

    Note: The undefined position in above, primary channel slave position,
          is using the default setting.

      After the changing, you should shutdown the OS/2 Wrap and reboot again
    to active the change.

    ***************************
    ** Driver Uninstallation **
    ***************************
      You  could  remove the "AGP 4X/133 Bus Master PCI IDE Device Driver for
    OS/2" by removing above two lines from the  config.sys file and  deleting
    the  VIA   drivers named "VIAIDE.ADD" and "VIACD.FLT" located in the \OS2
    directory by  manual operations. After reboot, the "AGP 4X/133 Bus Master
    PCI IDE Driver" is not existing in your system.


9) File Size: (bytes)

ROOT
          RELEASE  TXT         3,279
          README   TXT         5,380
          VIAIDE   DDP           435
          OS2      EXE        27,977
          VIACD    FLT        24,096
         VIAIDE   ADD        68,355

10) Bug Fixed:

******************
* Version 2.1.39 *
******************

OS2\          First release.

******************
* Version 2.1.40 *
******************

OS2\          OS2.exe will remark default drivers. (Both IBM1S506.ADD
              and IBMIDECD.FLT)

******************
* Version 2.1.42 *
******************

OS2\          Modify some strings during execute ddinstall.

********************
* Version 2.1.42_1 *
********************

OS2\          Fix system hang when AHA SCSI Bios is loaded and some
              CD-ROM is at master without slave device.
