ReadMe.txt Driver File Contents (files_1_wire_drivers_v400.zip)

This will install 1-Wire Drivers Version 4.00 on this 
computer. 1-Wire Drivers will enable 1-Wire applications 
to communicate with Dallas Semiconductor's iButton 
products on Microsoft Windows 95, 98, 2000, ME, 
and XP.

Special Considerations for USB

 1) Unplug any 1-Wire USB devices when prompted during 
    installation to allow the device driver to be updated.
 2) If the PC has never had a 1-Wire USB device on it, 
    then plug it in when prompted to complete 
    the USB install. 
 3) On a first-time install, please wait for the Add 
    Hardware Wizard to run after plugging in the USB 
    device.   
 4) If Add Hardware Wizard has a hard time finding the 
    driver to install (DS2490.SYS), then then point the 
    Hardware Wizard to it:
    (usually) C:\Program Files\Dallas Semiconductor\1-Wire Drivers Version 4.00

USB Adapter Enumeration Notes

 1)  The way 1-Wire USB adapter (specifically, the DS9490R 
     or DS9490B) enumeration occurs is a bit different from 
     other 1-Wire adapters as some TMEX USB port numbers are 
     reserved.  
 2)  The 1-Wire USB driver supports hot-swap for the default 
     device on Port number 1. 
 3)  Port numbers 2 though 15 are assigned to a particular 
     adapter based on it's unique number. This port will remain 
     the same even after the PC is rebooted or devices are 
     removed and reinserted.  
 4)  Port 0 is reserved for DS2490-based adapters with no 
     unique number assigned.


The 1-Wire Drivers installation comes with an optionally-installable, 
general purpose "OneWireViewer".  This versatile software utility will 
enable you to examine, test, and maintain iButtons.

Before upgrading to this version of 1-Wire Drivers, 
always remove any previous version with its 
uninstaller.   To use the uninstaller in 
Windows 95/98/2K/ME/XP:

1. Click on the 'Start' button
2. Click on 'Settings' and then 'Control Panel'
3. Double-click on the 'Add/Remove Programs' 
   icon in the 'Control Panel'
4. Select the '1-Wire Drivers' line in the 
   'Add/Remove Programs' window
5. Click OK at the bottom of the 'Add/Remove 
   Programs' window 
6. When asked if you want to remove all of 
   1-Wire Drivers, click OK.


For more information

  iButton information:
    http://www.ibutton.com/

  Maxim/Dallas Semiconductor information:
    http://www.maxim-ic.com/

  Technical Support:
    http://www.maxim-ic.com/products/ibutton/contacts/

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.

server: web2, load: 1.67