USBAT MSD Drivers Ver 4.0.1 Build 77

Release Notes

Table Of Contents

• Features
• Driver Components
• Supproted Devices
• Limitation of Driver
• Known Issues
• QC Status of Drivers
• Other Information
• Untested Devices
• Release History

Features

• True Plug & Play Support
• Support for Windows 2000
• No limitation in the number of devices that could be accessed concurrently
• 64KB Read Ahead Buffering for Windows 9X.
• Enhanced Support For Win95 OSR2.1 (Build 1214)
• Supports USB Tools, such as LedTray, Iconfig etc.

Driver Components

Driver set contians following files. Make sure Win95 system uses, win95 OSR2 specific driver.

UIOSPATC.INF - Port driver inf for USBAT msd products for Win9X
UIOSPATC.PDR - Port Driver for USBAT msd products for Win9X
UTCF.INF - Inf file for USBAT Compact flash
UTATA.INF - Inf file for USBAT ATAPI connector
UTPATA.INF - Inf file for USBAT Parallel ATAPI connection
UPATC.SYS - USB Client Driver for USBAT msd products for Win98 and Windows 2000.
Win95\UPATC.SYS - Win95 OSR2 specific USB Client Driver

Supproted Devices

USB Devices

1. Hard Disks
2. Compact Flash (Type I and Type II)
3. SonyHiFD (Only 200MB disk Support)
4. ATAPI CD-ROMs
5. ATAPI CD-RWs
6. Iomaga ZIP 100, Click! (8 & 16)
7. LS-120 (With or W/o C3)
8. Techmar ATAPI Tape Drive
9. CastleWood ATA Drive.

Parallel Port Devices

1. SHUTTLE EPP HD
2. SHUTTLE EPP LS-120 (Upto V4)
3. SHUTTLE EPP SonyHiFD (Only 200MB disk Support)
4. SHUTTLE EPP CD-ROMs
5. SHUTTLE EPP CD-RWs

Limitaions of Drivers

Windows 9X:-

• If Plug & Unplug is attempted continuously, system may crash at IOS layers after 32 times. This problem is also observed on other PnP drivers like PCMCIA ATAPI drives.
• In OSR2, while USB device is in operation and network operation also initialed, some times USB stack malfunctions.
• Helper VxDs for Battery Scope applications (commonly found on Sony laptops) are found to give problem with USB Stack. Hence it is mandatory to disable those drivers for smooth USB access

Windows 2000:-

• In compactflash reader if media is removed while accessing media contents, the reinsertion of media is not regnosied properly. Use explorer to read the media and continue with previous operation.

Known Issues

Window 9X:-

1. When device connected to CMD OHCI host controller (UH0673, Rev: 5), system hangs randomly. This exhibited in window 98 Gold and service pack 1, But not in Windows 98SE or Windows 2000.
2. When device connected to NEC OHCI host controller (Rev 1) thruogh a HUB on a window 98SE system, on suspend/resume of system driver letter is removed from my computer and Device manager gives a yellow mark in USBAT Mass Storage Port Adapter entry. But the Device works normally when connected through roothub.
3. With NEC Host contrller on Windows 98 Gold system, the device is not working normally.
4. In Win95 OSR2.X, while writing multiple small files to USB device, if suspend attempted result is unpreditable.
5. In Win95 OSR2.X, while reading from USB device, randomly suspend request fails.(Instead reporting active I/O, system goes in to suspend mode. resume opeartion is succesful)
6. In Win95 OSR2.X, IoMega Tools vcrsion 4.1 raises pagefault, while viewing Disk properies of Iomega drive.This issue not observed in laster version 6.1of Iomega Tools(IomegaWare 1.1.3)

7. In Techmar tape drive, if any operation from backup software when drive is spining, lead to backup software hanging.

Windows 2000:-

1. FORMAT of some media fails with error messages '"Windows unable to complete the format". This is seen in with MicroSoft® supplied USB Mass storage driver (Usbstor.sys - 5.0.2112.1) in Windows2000 Build 2128 and as well as PC-Card drivers.
2. UnInstalling the driver through device manager causes a 'data invalid error' message to be displayed. This is seen in with MicroSoft® supplied USB Mass storage driver (Usbstor.sys - 5.0.2112.1) in Windows2000 Build 2128.
3. if repeated attampt made to suspend the system, while accessing the drive, sometimes the driver letter removed from the system. On reinserting, it contiunes to work normally.

QC Status of Drivers

• Driver 4.0.1 Build 1 tested for Compact flash in QC of STI
• Driver 4.0.1 Build 66 tested for Sony CDRW in QC of STI
• Driver 4.0.1 Build 77 passed acceptance test in STR for Compact flash and CDRW.

Other Information

Please refer the following table for the switch options forced via the DWORD registry subkey viz "DriverFlags" under "HKLM\System\CurrentControlSet\Services\Class\USB\xxxx" where xxxx corresponds to the instance of the USB client driver. Be Sure before make changes.

Bit	If Set	If Reset
0	System NTOS	System is Win9X OS
1	Enable Win9XOS Special processing for thread Issues	Disable
2	Enable Large Data Transfers For ATA devices	Disable
3	Enable Large Data Transfers For ATAPI devices	Disable
4	Enable Fast IO	Disable
5	Enable Client driver VCD read-ahead cache	Disable
6	Enable Tape Driver cache	Disable
7	Use ScsiMPD-PDR combiniation	Use ScsiMPD-SYS combiniation
8-31	Reserved	-

Untested Devices

USB Devices

1. SonyHiFD (Only 200MD disk Support / Floppy mode not supported)

Parallel Port Devices

1. SHUTTLE EPP HD
2. SHUTTLE EPP LS-120 (Upto V4)
3. SHUTTLE EPP SonyHiFD (Only 200MD disk Support)
4. SHUTTLE EPP CD-ROMs
5. SHUTTLE EPP CD-RWs

Release History

Ver 4.0.1 Build 77

• Fix for reboot issue with Multiple USBAT devices, in Win2000.
• Fix for ACID-MUSIC issue with HP8200 cdrw drive
• Fix for overlapped command execution in tecmer tape drive

Ver 4.0.1 Build 75

• SanDisk Flash Reader Support added (Inf included)
• Correction for Win2k WHQL Test suite
• Correction for ChkDsk and Format in Win2k

Ver 4.0.1 Build 72

• Bug fix for Drive access after Win2k resumes
• Support of Multiple USBAT devices in Win2k

Ver 4.0.1 Build 69

• Bug fix for Win98 SE suspend/resume issue

Ver 4.0.1 Build 68

• Bug fix for Unit Serial No. support

Ver 4.0.1 Build 67

• Version Info are modified to meet Standardization.
• Pdr PnP String changed to 'USBAT Mass Stroage Port driver'.
• Filter driver included for blank CD-R/CD-RW reading issue in INF file.

Ver 4.0.1 Build 66

• Win2k PNP issue fixed.

Ver 4.0.1 Build 59

• Win2k shutdown/resert bug corrected
• CD-ROM plugin Auto insertion notification feature corrected.

Ver 4.0.1 Build 43

• Issues with IBM MicroDrive fixed
• CF Inquiry string changed to 'USBAT Compact Flash'
• Enhanced serial number support
• Win2k SCSI ASPI/passthrough(SPTI) support added.
• INF File device descriptions were modified
• Bug Fix for CD ModeSelect command

Ver 4.0.0 Build 1

• Windows 2000 support added (Alpha Level).
• Tape Drive support added.
• SCM USB tools support
• Serial number support for ATA device
• Misc. Bug Fixes

Ver 3.0.1 Build 5

• Bug Fix for Disc-at-once cd creation error in Easy cd creator
• Additional check included for ATAPI commands
• TransferCount issue with Win95 Osr2.X fixed
• Fix for corrupted VCD playing problem

Ver 3.0.1 Build 4

• Bug Fix for LS-120 floppy write error.
• Crash during re-start or shutdown under OSR2 is fixed (Pdr)
• Additional checks to qualify SRB fields are added (Pdr)
• Re-starting the PDR via device manager is supported (Pdr)

Ver 3.0.1 Build 3

• Misc. Bug fixes in USB Layer
• Bug Fix for LS-120 media change

Ver 3.0.1 Build 2

• Reboot device recognition bug with ATAPI devices is fixed

Ver 3.0.1 Build 1

• 128K Read support can controled via switch
• Misc Bug fixes

Ver 3.00 Build 2

• Bug Fixes for OSR2 Driver

Ver 3.00 Build 1

• Port Driver Support
• Read-Ahead cache support
• Name Standaration is applied

Ver 2.04 Build 5

• Enhanced Support For USBAT-02 ASIC Products

Ver 2.04 Build 4

• Better Support for CD-R 4X Write
• If MPD is removed, using Device Manager, refreshing will bring back the Drive.

Ver 2.04

• Changed in sync with MPD v2.04

Ver 2.03

• Win 9X special proccessing to minimise thread releated issues.

Ver 2.02

• OSR2 support is enhanced

Ver 2.00 Beta 1

• This is the major release in this series.
• WDM PnP is the new feature in this driver.
• Enumerator VxD is fully removed.
• Improved Device Manager Support
• Smooth operation during cable removal while active IO
• Smooth operation during suspend while active IO