The Device Driver Utility enables you to connect to the Image Packaging System (IPS) and use it to search for device drivers for hardware in your system that might not have a driver installed.
To start the Device Driver Utility, choose Applications > System Tools > Device Driver Utility.
For more about device drivers and using the Device Driver Utility, refer to:
http://dlc.sun.com/osol/docs/content/dev/getstart/devdriver.html