Driver:	TWEXABYT, Version 4.10.00 January 30, 1993
	Copyright (c) 1990-1993, Emeritus Technologies.
	All rights reserved.

	TapeWare Exabyte SCSI-2 device driver

	Date		Mod	Description
	-----------	---	-----------------------------------------------
	15-May-1991	MDB	Created Exabyte driver from TWDATDRV version
				3.00.32 (new driver version: 3.00.01)

	20-May-1991	MDB	First working version of driver

	29-May-1991	MDB	added front panel update switch
				(default = OFF)

	12-Jul-1991	MDB	corrected errors in multiMode flag

	13-Jul-1991	MDB	removed polling routine from list
				when dSeekBlock is called.

	15-Jul-1991	MDB	added retry count to rewind command
				if the drive does not signal BOM on completion
				(the Exabyte 8200 does this sometimes)

	23-Aug-1991	MDB	Corrected problem with panel update count.

	06-Sep-1991	MDB	Added block size recognition to mount media.

	30-Oct-1991	MDB	Corrected yet another problem with panel update
				count! Finally had to use a fixed panel update
				count. This is a strange problem. When we use
				a proper algorithm to calculate the update
				count, TapeWare does some very strange things
				after the device driver is loaded. I can only
				figure that there is something wrong with the
				way in which it is compiled. This will have to
				be looked at in the future.

	24-Sep-1991	RAC	Added support for 3.01 header files and
				Borland C++ compiler. Changed version number
				to 3.01.00.

	07-Oct-1991	MDB	Completed changes to driver for support of
				Exabyte 8500 series drives.

	14-Nov-1991	MDB	Corrected error in mount media. When a tape
				has just been inserted, there will be a short
				time while the drive is mounting the tape that
				the drive will report fixed/variable block
				length error. This is accounted for by looping
				and retrying the operation once per second for
				a maximum of sixty seconds.

	02-Jan-1992	MDB	Corrected problem in dStopWrite/Read when
				front panel updates were enabled.

	27-Jan-1992	MDB	Changed version number to 4.00

	29-Jan-1992	MDB	Removed check for LBOT in decode sense.

	13-Feb-1992	MDB	Corrected problem with seek algorithm. When a
				Read-Open is called immediately followed by
				a stop-read command, the file mark dectected
				after the media Id was not serviced. This
				forced the tape block number to be off by one.

	25-Feb-1992	MDB	Corrected problem with reverse seek algorithm.

	26-Feb-1992	MDB	Optimized reverse seek to use rewind if faster

	26-Feb-1992	MDB	Corrected potential error in MountMedia. If the
				first block on a tape is a file mark, we were
				singaling a block read to TapeWare. This was
				really bad form!

	27-Mar-1992	MDB	Set Action to ACTIVE prior to calling
				PerformIOPB(); This way, if we get an IRQ
				before PerformIOPB returns, Action will not
				be left active.

	05-Aug-1992	MDB	Added dispatch to time delay functions.

	18-Aug-1992	MDB	Corrected problem in dStartAppend and
				dStartWrite. These routines were not clearing
				the device status (leaving an end of data 
				check condition set).

	02-Sep-1992	MDB	Corrected bug in dCheckStatus that was not
				reporting controller level errors during
				streaming read/write operations.

	15-Sep-1992	MDB	Added support for EXB-8205c.

	07-Oct-1992	MDB	Corrected End-Of-Media reporting error with
				Exabyte 8500.

	30-Jan-1993	RAC	Changed version to 4.10

