+------------------------------------------------------------------------------+
|                          C H A N G E    O R D E R                            |
|                           Interphase Corporation                             |
+------------------------------------------------------------------------------+
|    C O #       |  DATE APPROVED:                   |  DATE WRITTEN:          |
|    4321        |  1996-11-12 11:50                 |  1996-11-04 15:17       |
+----------------+-----------------------------------+-------------------------|
|           MARKETING NUMBER                     P-NUMBER                      |
|                                                                              |
|               4220                                186                        |
|               4220W                               192                        |
|                                                                              |
+------------------------------------------------------------------------------+
|OLD REVISION             NEW REVISION           DESCRIPTION                   |
|                                                                              |
|FA00084-D00              FA00084-D01            COUGAR2 EPROM                 |
|FA00085-D00              FA00085-D01            COUGAR2 EPROM (FLASH)         |
|SX00086-D00              SX00086-D01            COUGAR2 MEMORY DNLD           |
|SX00087-D00              SX00087-D01            COUGAR2 FLASH DNLD            |
|                                                                              |
+------------------------------------------------------------------------------+
|--SYMPTOM/CAUSE/SOLUTION SECTION--                                            |
|                                                                              |
REASON FOR CHANGE(S) : (Be specific)


Symptom : Incorrect transfer count reported in IOPB.

Cause   : When reading a Wide SCSI variable block length device if the device
          does an 'ignore wide residue' message and the host IOPB transfer
          count request is the exact count from the device, the returned IOPB
          transfer count is 1 less that what was actually transferred.
          example: host iopb transfer count = 511 bytes
                   SCSI device does 256 word transfers = 512 bytes
                   SCSI device issues ignore wide residue message
                   returned IOPB to host transfer count = 510

Solution: Correct the code that handles the 'ignore wide residue' message to
          sanity check the original count from the host before decrementing the
          value.