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342 lines
10 KiB
Plaintext
342 lines
10 KiB
Plaintext
CP210x Windows XP/Vista(32/64)/7(32/64)/8,8.1(32/64) Driver v6.7 Release Notes
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Copyright (C) 2014 Silicon Laboratories, Inc.
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This release contains the following components:
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* x64 directory
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* silabser.sys
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* silabenm.sys
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* x86 directory
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* silabser.sys
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* silabenm.sys
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* CP210xVCPInstaller_x86.exe (DPInst)
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* CP210xVCPInstaller_x64.exe (DPInst)
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* dpinst.xml (DPInst initialization file)
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* silabser.cat
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* slabvcp.inf
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* ReleaseNotes.txt (this file)
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Driver Installation
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-------------------
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See Kit User's Guide for installation instructions.
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Release Dates
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-------------
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CP210x USB to UART Bridge Driver v6.7 - April 11, 2013
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Supported Operating Systems
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---------------------------
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Windows 8/8.1 (64/32), 7 (64/32), Vista (64/32), and XP
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CP210x Windows Driver Revision History
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--------------------------------------
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version 6.7 (Apr 11, 2014)
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Corrections
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-----------
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Added vendor-specific commands to the driver that do not affect normal operation with
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standard CP210x devices.
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Modified write behavior to packetize data as a work around for a rare USB 2.0 hub behavior
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seen only in Windows XP (x86).
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version 6.6.1 (Oct 24, 2013)
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New features/Enhancements
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-------------------------
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Added certification for Windows 8.1
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version 6.6.1
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New features/Enhancements
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-------------------------
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Added support for CP2108 devices
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Corrections
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-----------
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Corrected bug where OS would hang on repitition of many rapid open/closes on
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certain systems.
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version 6.6
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New features/Enhancements
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-------------------------
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Moving installer format to DPInst
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Supported under Windows 8
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Corrections
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-----------
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Corrected bug in total write timeout calculation
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Corrected bug where EV_BREAK event could be misreported based on incoming data
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Corrected another BSOD corner case regarding write cancellation
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version 6.5.3
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Corrections
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-----------
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Corrected BSOD corner case for a write cancellation
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Corrected memory leak that occurs when a device is plugged/unplugged rapidly enough to
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allow driver startup function to fail
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version 6.5
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Corrections
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-----------
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Corrected BSOD corner case issue for handling control requests
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Corrected issue where USB 3.0 hubs would deliver data to the driver out of order
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version 6.4
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Corrections
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Corrected multiple BSOD issues by updating request handling for control requests to the USB
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device, and the write completion method
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Corrected device removal routine to also undo the COM port naming in the registry at removal time
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instead of when the device is closed after the removal.
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version 6.3a
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Corrections
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Updated to 3.2 DriverInstaller to correct a bug seen when updating from an old driver
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installer version
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version 6.3
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Corrections
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Corrected a bug introduced in 6.2 which caused BSOD during surprise removal.
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Corrected a bug found in I/O cancellation corner case
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version 6.2
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Corrections
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Corrected return value for DeviceIoControl() and other COM API functions once the device is
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removed to properly show ERROR_ACCESS_DENIED (0x05) instead of ERROR_BAD_COMMAND in GetLastError()
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Corrected bug in DTR/RTS reporting latency seen if you set DTR/RTS and ask for it before the
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device has reported it to the host - now when it is written it reads back immediately
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Corrected several USB requests that were improperly defined as device requests when they are actually
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interface requests - this doesn't exhibit and bugs in current single interface devices but was changed
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to be complete and correct
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New features/Enhancements
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-------------------------
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Added support for CP2104 and CP2105 devices
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version 6.1
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Corrections
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Corrected a memory leak which could bog the system down after extended use of a contiuously
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opened COM port, and conditionally yield bluescreens on certain systems
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Corrected a problem where an IO reqest would sometimes return a busy status to
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user mode, instead the queue is restarted if necessary before adding an IO request
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to the queue
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Corrected a condition which would blue screen on cancelling write request that hasn't been
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fully sent out USB
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Corrected the Capabilites return value, which incorrectly reported that timeouts are not supported
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Corrected several Queue size return values, which affected behavior in the MSCOMM control
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Corrected DTR/RTS value on device insertion, visible when Serial Enumeration is disabled
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Corrected the ability to override Baud Rate and Line Control from the INF file
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version 6.0
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Corrections
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-----------
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Corrected multiple blue screens and driver hangs related to race conditions in the driver
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Corrected problem where driver hangs when 4 or more devices are connected to a single
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transaction translator hub
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Corrected bugs that prohibited serial enumeration
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Corrected problem where IO requests were not completed/cancelled on a close
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Corrected problem with dialing out or PPP connections
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New features/Enhancements
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-------------------------
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Created IO queueing mechanism so that multiple reads, writes, etc. can be queued and
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waited on
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version 5.4.29
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Corrections
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-----------
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Fixed a bug which causes GET_COMM_STATUS to take longer than expected (previously corrected
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in version 5.3)
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Corrected several conditions which cause blue screens
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Corrected bug in surprise removal which can cause a blue screen
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Corrected bug where TX_EMPTY wasn't being reported properly
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New features/Enhancements
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-------------------------
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Added Windows 7 to the general installer for XP/2003/Vista under KMDF 1.9
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Modified driver to support selective suspend in Vista/7
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Updated silabenm.sys to include latest changes from serenum in the WDK
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WHQL Certified for XP/2003/Vista(32/64)/7(32/64)
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version 5.4.24
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Corrections
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Fixed a bug which caused a random crash if a write took longer than normal to complete
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New features/Enhancements
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-------------------------
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WHQL Certified for XP/2000/2003/Vista(32/64)
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version 5.4.23
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Corrections
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Fixed a bug which caused a crash if the device is surprise removed during communication.
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Fixed a bug which incorrectly uses the TX_EMPTY flag.
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Fixed incorrect/incosistent status return values.
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Corrected the default software flow control values
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version 5.4
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Corrections
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Fixed bug where the first packet of data is dropped in Windows 2000.
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New features/Enhancements
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-------------------------
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Added support to keep all GPIO pin states and all baud rate and line control data if
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the device loses power during standby or hibernation.
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Updated to use the latest version 1.7 of KMDF
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version 5.3
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Corrections
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Corrected the IOCTL_SERIAL_SET_QUEUE_SIZE to allow expansion of the receive buffer.
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Modified driver to limit the device access only when necessary to improve performance.
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Corrected a case where read interval timeouts do not get started properly.
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version 5.2.2
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Corrections
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Fixed a bug that was causing random bluescreens after a device is opened and closed.
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version 5.2.1
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Corrections
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Fixed a bug caused by the previous fix for incomplete reads in Hyperterminal.
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Fixed a bug when using the Manufacturing DLL where no data comes back from the part for
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customization type settings in Vista 64.
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version 5.2
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Corrections
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Fixed a BAD_POOL_HEADER blue screen issue.
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Fixed a crash during surprise disconnect in HyperTerminal on Vista.
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Fixed a problem causing various incomplete reads, sometimes visible in HyperTerminal.
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New features/Enhancements
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-------------------------
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CP210xVCPInstaller.exe updated to v2.4.
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version 5.1
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Corrections
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Multiple devices can be used now with no problems.
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Driver now correctly works with the MSCOMM ActiveX control.
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version 5.0
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New features/Enhancements
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-------------------------
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Driver has been updated to use the KMDF.
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Driver now includes a Serial Enumeration filter driver.
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WHQL Certified for XP/2000/2003/Vista(32/64).
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version 4.40
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New features/Enhancements
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-------------------------
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Driver has been updated to include Vista (x86/x64) support.
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CP210xVCPInstaller.exe updated to v2.0.
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version 4.38a
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New features/Enhancements
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-------------------------
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Driver version 4.38 is the same, however the installation procedure changed and a new
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installation utility has been provided.
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INF files have been changed to be independent of the installer, making reseller submissions
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easier.
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Windows 2K\XP\2003 now all have the same catalog file making the installation a single
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utility for all OS's.
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version 4.38
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New features/Enhancements
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-------------------------
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Extended surprise removal support added to fix COM port hang.
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WHQL Certified for Windows XP and 2000.
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Version 4.28a
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New features/Enhancements
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-------------------------
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WHQL Certified for Windows XP and 2000.
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Version 4.28
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New features/Enhancements
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-------------------------
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Includes Preinstaller executable and with added preinstaller support in uninstaller
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executable and ini files.
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Corrections
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Fixed driver lock condition caused by certain invalid port settings.
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Fixed Windows 98 PreInstaller issue.
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Version 4.20
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New features/Enhancements
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-------------------------
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Changed driver binary file names from cyg_* to slab*. Also changed
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default inf file strings to SLAB and Silicon Laboratories.
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This installation includes catalog files for Windows 2000/XP Windows
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Hardware Quality Lab (WHQL) Certification.
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Corrections
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-----------
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Modified behavior of SERIAL_EV_TXEMPTY event notification. Applications
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will no longer miss TXEMPTY events if a write is pending during the
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IOCTL_SERIAL_WAIT_ON_MASK control request.
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Version 4.16
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New features/Enhancements
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-------------------------
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Corrections
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Changed behavior for IOCTL_SERIAL_LSRMST_INSERT for correct modem
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event insertion.
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Version 4.09
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Initial Release
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