Microsoft Word - Resolved Driver Issues.doc
Resolved Driver Issues
Introduction
This document describes some of the issues present in previous versions of the drivers. The intent of the document is to encourage updating to the latest UniWin driver which has all listed issues resolved. This list includes changes made from version 6.31 to the current version.
Current Released Version – 6.45
6.45 Resolved the following issues: Date: 07-15-2011
Microchip TSHARC Windows XP (32/64-bit), Windows 7 (32/64-bit) Universal Driver, Release 6.45
1. Fixed small memory leak within the TSHARC background service.
6.44 Resolved the following issues: Date: 06-23-2011
Microchip TSHARC Windows XP (32/64-bit), Windows 7 (32/64-bit) Universal Driver, Release 6.44
1. Communication fix that ensure Octopus controller versions are returned correctly.
2. Fix for Windows 7 such that the controller version is parsed from the registry correctly.
3. Modified how USB devices are opened on the system.
4. Updated RS232 driver to handle Enable/Disable calls more robustly.
6.43 Resolved the following issues: Date: 01-19-2011
Microchip TSHARC Windows XP (32/64-bit), Windows 7 (32/64-bit) Universal Driver, Release 6.43
1. EEPROM Corruption There are known issues with TSHARC EEPROM stability on older driver versions. This corruption can cause extreme delays during calibration or system load, as well as loss of calibration.
2. Controller EnableDisable Failure While the driver is communicating with the controller it places the controller in a disabled state. After communications, a controller enable command is transmitted. Incomplete validation of the controller response could lead the driver to identify the controller as enabled when it was disabled, thus causing a loss of touch functionality.
3. Slow EEPROM Communications The firmware would call multiple sequences of Enable/Disable during controller communications, as well as reading entirety of EEPROM data. The driver has now been optimized to minimize communications redundancies.
4. Reboot Required During Uninstall
Uninstall has been modified to only require rebooting in a minimum number of scenarios. It is now much less likely to be required.
5. USER Permissions Could Not Access TSHARC Control Panel TSHARC Control Panel has been updated to allow nonadministrators to perform Calibrations.
6. Numerous additional bug fixes and stability improvements have also been implemented.
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