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CP210x Windows Driver v5.3 Release Notes Copyright (C) 2008 Silicon Laboratories, Inc. This release contains the following components: * x64 directory * silabser.sys * silabenm.sys * x86 directory * silabser.sys * silabenm.sys * CP210xVCPInstaller.exe (v2.4) * setup.ini * silabser.cat * slabvcp.inf * ReleaseNotes.txt (this file) Driver Installation ------------------- See Kit User's Guide for installation instructions. Release Dates ------------- CP210x Windows Driver v5.3 - July 15, 2008 CP210x Windows Driver Revision History -------------------------------------- version 5.3 Corrections ----------- Corrected the IOCTL_SERIAL_SET_QUEUE_SIZE to allow expansion of the receive buffer. Modified driver to limit the device access only when necessary to improve performance. Corrected a case where read interval timeouts do not get started properly. version 5.2.2 Corrections ----------- Fixed a bug that was causing random bluescreens after a device is opened and closed. version 5.2.1 Corrections ----------- Fixed a bug caused by the previous fix for incomplete reads in Hyperterminal. Fixed a bug when using the Manufacturing DLL where no data comes back from the part for customization type settings in Vista 64. version 5.2 Corrections ----------- Fixed a BAD_POOL_HEADER blue screen issue. Fixed a crash during surprise disconnect in HyperTerminal on Vista. Fixed a problem causing various incomplete reads, sometimes visible in HyperTerminal. New features/Enhancements ------------------------- CP210xVCPInstaller.exe updated to v2.4. version 5.1 Corrections ----------- Multiple devices can be used now with no problems. Driver now correctly works with the MSCOMM ActiveX control. version 5.0 New features/Enhancements ------------------------- Driver has been updated to use the KMDF. Driver now includes a Serial Enumeration filter driver. WHQL Certified for XP/2000/2003/Vista(32/64). version 4.40 New features/Enhancements ------------------------- Driver has been updated to include Vista (x86/x64) support. CP210xVCPInstaller.exe updated to v2.0. version 4.38a New features/Enhancements ------------------------- Driver version 4.38 is the same, however the installation procedure changed and a new installation utility has been provided. INF files have been changed to be independent of the installer, making reseller submissions easier. Windows 2K\XP\2003 now all have the same catalog file making the installation a single utility for all OS's. version 4.38 New features/Enhancements ------------------------- Extended surprise removal support added to fix COM port hang. WHQL Certified for Windows XP and 2000. Version 4.28a New features/Enhancements ------------------------- WHQL Certified for Windows XP and 2000. Version 4.28 New features/Enhancements ------------------------- Includes Preinstaller executable and with added preinstaller support in uninstaller executable and ini files. Corrections ----------- Fixed driver lock condition caused by certain invalid port settings. Fixed Windows 98 PreInstaller issue. Version 4.20 New features/Enhancements ------------------------- Changed driver binary file names from cyg_* to slab*. Also changed default inf file strings to SLAB and Silicon Laboratories. This installation includes catalog files for Windows 2000/XP Windows Hardware Quality Lab (WHQL) Certification. Corrections ----------- Modified behavior of SERIAL_EV_TXEMPTY event notification. Applications will no longer miss TXEMPTY events if a write is pending during the IOCTL_SERIAL_WAIT_ON_MASK control request. Version 4.16 New features/Enhancements ------------------------- Corrections ----------- Changed behavior for IOCTL_SERIAL_LSRMST_INSERT for correct modem event insertion. Version 4.09 Initial Release