Readme.txt Driver File Contents (usb2v21.zip)

USB 2.0 Driver Version 2.0
Driver Limitations:
===================
- The following USB 2.0 devices and features are not supported
  in this driver release:
   - USB 2.0 Isochronous devices (example: USB 2.0 webcams and
     USB 2.0 speakers).
   - Composite USB 2.0 Devices.
   - USB Remote Wake Up.

- Some devices which implement USB 2.0 interrupts may not work
  properly.

- Some USB 1.1 composite devices may not work properly if connected
  to a USB 2.0 Hub. (example: MIDI-interface, headphones/microphone
  system, and some keyboards).

- This driver does not currently support multiprocessor systems
  under Windows 2000.

- Currently the following systems are not supported with the Adaptec
  USB 2.0 CardBus and USB 2.0 Drivers.
  - IBM ThinkPad X20
  - Compaq EVO N150


Notes:
======
- Do not attempt to put the system into standby or hibernation
  during data transfer (I/O activity) with a USB device.

- The first time a USB device is plugged into a USB port, the
  system may prompt you to locate the driver for that USB
  device and request a restart.

- Please check your device manufacturer's web site for the latest
  updates to their software.


Troubleshooting Info:
=====================
- If you attempt to put the system into standby or hibernation
  during data transfer (I/O activity) with a USB device, you may
  experience problems with your system.  Please do not attempt to
  put the system into standby or hibernation during I/O activity
  with a USB device.

- When using Windows Me, the Device Manager will have a green
  question mark next to any USB 2.0 device which is connected
  to an Adaptec USB 2.0 card.  The device will continue to
  function properly.

- When using Windows 98SE, the Adaptec USB 2.0 driver may prevent
  some systems from entering into standby mode.
  
- The system may report that a USB 2.0 CD-RW connected to an
  Adaptec AUA-2000LP card does not contain any media when
  resuming from a suspend. To workaround this issue, use the
  "unplug or eject hardware" icon in the system to remove the
  USB 2.0 CD-RW. Unplug the USB 2.0 CD-RW from the card, and
  then plug it back in.

- If you unplug/re-plug a device too quickly, the system may
  not recognize the USB device.  To workaround this issue, allow
  at least 3 seconds between a unplug and re-plug.

- Removing two or more devices using the "unplug or eject"  
  hardware icon (on the system tray): Use the "unplug or eject"
  icon to remove one device, then physically remove the device,
  before attempting to use the "unplug or eject" icon to remove
  other devices. If you attempt to remove more than one device
  using the "unplug or eject icon," physically removing a USB
  device will cause the other devices to re-enumerate.

- When using Windows 2000, with certain CD-RW applications
  running, the system may stall if a USB CD-RW drive is
  removed using the "unplug or eject hardware" icon in the
  system tray.

- Before making any changes through the device manager to enable
  or disable the Adapter Enhanced Host Controller, stop all USB
  devices connected to the Adaptec host bus adapter or CardBus and
  remove the USB devices from the system.

- When connect to an Adaptec USB 2.0 Hub, Creative USB 1.1 webcams,
  may not re-enumerate if you put the system into standby mode.
  To workaround this issue, unplug and re-plug the webcam.

- When using an HP PSC-750 printer/scanner/copier, we recommend
  connecting the device directly to your USB card or built-in
  USB port rather than through a Hub.

- When using the Adaptec AUA-1420 CardBus card, Adaptec USB 2.0
  drivers, and the Xircon Ethernet CardBus card, with Windows 2000,
  the ethernet card may not work properly. This will be addressed
  in a future release of our drivers.
  
17.12.2001 16.29


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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