CP210x Windows Driver v4.38a Release Notes Copyright (C) 2006 Silicon Laboratories, Inc. This release contains the following components: * CP210xVCPInstaller.exe * setup.ini * slabbus.cat * slabser.cat * slabbus.inf * slabw2k.inf * slabbus.sys * slabcmnt.sys * slabcr.sys * slabser.sys * slabwhnt.sys * Release Notes.txt (this file) Driver Installation ------------------- See Kit User's Guide for installation instructions. CP210x Windows Driver Revision History -------------------------------------- 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 suprise 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 ReleaseDownload Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.