File Name: README.TXT

       Linux firmware update YUS8 for Lite-On LTN-486S CD-ROM drive

       CONTENTS
       ---------

	1.0   Overview
	2.0   Change History
      	3.0   Installation and Setup Instructions
       	4.0   Web Sites and Support Phone Number
       	5.0   Trademarks and Notices
       	6.0   Disclaimer


	1.0   Overview
 -----------------------------------------
        1.1   Overview about this code

 	This firmware fixes a problem seen on CD install
	of Linux for x86_64 gets "interrupt lost" message on A-Pro 6224.  This 
	slows install or causes it to fail.  This has only been seen on A-Pro 6224 
	systems with CD-ROM drive Lite-On model LTN-486S.

	1.2  Problem Isolation Aids
 	- The system may be any of the following IBM IntelliStations:
      	an IntelliStation A Pro, Type 6224, any Model.
 
	- The system is configured with the following option(s):
      	IBM 48X-20X CD-ROM Black Internal IDE Drive,
	Lite-On model LTN-486S 
     	Option p/n10K3782, IBM p/n33P3206, FRU p/n33P3207.
 
	- Any Linux operating system could be affected.
  
  Notice: This does not imply that the network operating system
          will work under all combinations of hardware and
          software.
 
  	Please see the compatibility page for more information:
 
       	http://www.pc.ibm.com/us/compat/nos/matrix.shtml

	1.3   This CD-ROM firmware update is required only if the 
	customer is experiencing the problem described in section 1.1 
	of this document.
  

       2.0   Change History
       -----------------------------------------

	From YUS6 to YUS7

	1.Modify TE sensor gain calibration strategy that backup the TE sensor gain value and write it back as if track balance calibration timeout.
	2.Add a command timeout protection.
	3.Implement blank disc identification function.
	4.Modify RFRP_Delta calibration strategy that as the RFRP_Delta calibration result is far away the normal value, it will return with default normal 	value.
	5.Implement Smart Control function that in DAE mode, driver would control the reading speed based on disc quality judgment result
	6.Modify DAE and VCD playing mode from 14xS CLV to CAV
	7.Modify Mode_Sense Command about mode page 0x01.The length about mode page 0x01 is different between SFF8020 and SFF8090.
	8.If the expected sector type in READ_CD command is Mode 2(neither "Mode 2 Form1" nor "Mode 2 Form 2") ,return error.
	9.Generate Unit Attention on SRST.
	10.Support HCT11. for WHQL
	11.For code size saving, reconstruct code.

	From YUS7 to YUS8

	1.Adjust the RF channel relative parameters,data PLL circuit relative parameter to anti-sudden ripple and have large window for successful decoder 	data.
	2.Enhance the re-try strategy as the fail to read, especially in lower reading speed to ensure the recover process finished.


       3.0   Installation and Setup Instructions
       -----------------------------------------

	The image file, yus8ltn.img, is used to create a bootable diskette under Linux. 
 	The command under Linux to write the image to a floppy is 'dd if=yus8ltn.img of=<floppy device>'  
	where <floppy device> is the device name of the floppy drive in the target system. Normally this 
	would be '/dev/fd0' onsystems with legacy floppy drives. For systems with a USB floppy drive, the 
	address will vary. Since USB devices are addressed as SCSI devices under Linux, the floppy 
	device name will be '/dev/sdX', where X is a, b, c, etc, depending on how many other 
	SCSI addressed devices are in the system. 

	Once the diskette has been created, boot the system to be updated with the diskette.  Follow the 
	instructions on the screen.


       4.0   WEB Sites and Support Phone Number
       ----------------

	4.1  IBM Support Web Site:
		http://www.pc.ibm.com/support

	4.2  IBM Marketing eserver Web Site:
		http://www.ibm.com/eserver/xseries


	4.3  If you have any questions about this update, or problems
             applying the update go to the following Help Center World
             Telephone Numbers URL: 800-IBM-SERV (800-426-7378)
	     Hardware Support #: 800-426-4378
	     Software Support #: 800-237-5511
		   
	4.4  Website for the World Wide Support Phone list: 	
                  
	     
        4.5   IntelliStation web site:
		www.pc.ibm.com/intellistation   


       5.0   Trademarks and Notices
       ----------------------------

 	The following terms are trademarks of the IBM Corporation
	in the United States or other countries or both:
		IBM
		Intellistation

	********************************************	
	Linux is a trademark of Linus Torvalds.

	Other company, product, and service names may be
	trademarks or service marks of others.


       6.0   Disclaimer
       ----------------------------

	6.1   THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF
		ANY KIND.   IBM DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS
	 	OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE IMPLIED
		WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND
		MERCHANTABILITY WITH RESPECT TO THE INFORMATION IN THIS
 		DOCUMENT.   BY FURNISHING THIS DOCUMENT, IBM GRANTS NO
		LICENSES TO ANY PATENTS OR COPYRIGHTS.


	6.2   Note to U.S. Government Users -- Documentation related to
		restricted rights -- Use, duplication or disclosure is
		subject to restrictions set forth in GSA ADP Schedule
		Contract with IBM Corporation.