RELEASE NOTES.TXT Driver File Contents (

CP210x Windows Driver v4.38 Release Notes
Copyright (C) 2006 Silicon Laboratories, Inc.

This release contains the following components:

* slabunin.exe
* slabunin2k.exe
* slabunin.u98
* slabunin.u2k
* slabbus.inf
* slabvxd.inf
* slabw2k.inf
* slabwdm.inf
* slabbus.sys
* slabcm95.sys
* slabcmnt.sys
* slabcr.sys
* slabser.sys
* slabwh95.sys
* slabwhnt.sys
* slabcomm.vxd
* slabvcd.vxd
* slabvcr.vxd
* Readme.txt (this file)

Driver Installation

	See Kit User's Guide for installation instructions.

CP210x Windows Driver Revision History

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.
	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.


	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

	Changed behavior for IOCTL_SERIAL_LSRMST_INSERT for correct modem 
	event insertion.

Version 4.09
	Initial Release

Download Driver Pack

How To Update Drivers Manually

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.

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