From Second Life Wiki
This page describes how to install and use the Logitech Dual Action Gamepad in Second Life. These instructions apply to Windows only, though the controller is also usable on Linux. This is an excellent device to use for those who cannot use a keyboard or conventional mouse or those who simply find using a gamepad easier.
Unfortunately, Logitech has discontinued the basic wired Dual Action Gamepad. This is unfortunate because this discontinued model is the lightest weight and therefore the best for those with upper limb limitations or disabilities. The current versions are wireless or with a rumblepack which adds weight to the device and is likely difficult to use for those with accessibility concerns. As of Spring 2010, you may find some old discontinued gamepads in various stores -- good luck!
If you have mobility concerns, please also view this Accessibility page in the Wiki.
If you use Dragon speech recognition software, please also view this Dragon page in the Wiki.
Second Life Viewer
Ensure your preferred Second Life viewer is downloaded and installed first.
Logitech Dual Action Gamepad
Plug the gamepad into your computer. It's always best if you use the same USB port and ensure that your gamepad is plugged in before you launch your Second Life viewer.
Go to the Logitech website
This will likely be under Support> Product Support
Use the auto-detect or search
Download the latest software for your OS
You may wish to create a folder on your desktop called Gamepad to save your downloads to. Once you are finished with the installation and setup, move this folder to an archive region on your hard drive or network.
Game Profiler Data Files
Download the Logitech Gamepad SL Profile
Download the Logitech Gamepad SL Device Settings Layout
Run the Logitech Gamepad software downloaded above
Follow the on screen prompts
At the end of the installation you should see the Logitech Profiler
If you do not see the Logitech Profiler, you can run this manually via the taskbar icon or under your Start Menu's Programs (Logitech> Logitech Gaming Software)
Click Profile> Import
Browse to the downloaded Logitech Gamepad SL Profile
On the Profile Properties screen, Browse to your preferred Second Life viewer's application
Choose an appropriate icon
Close the Profiler
Running Second Life
Start your Second Life viewer
Use the downloaded Logitech Gamepad SL Device Settings Layout sheet to guide you in the use of the gamepad within Second Life
You may find that your mouse cursor becomes skewed or drifts across the screen. If that is the case, simply use your thumbs on both Left and Right gamepad sticks to push up then rotate fully around a couple of times.
You may also find that you lose the ability to use your gamepad after performing some actions in Second Life. If that is the case, then open the Logitech Profiler, click on Options> Global Profiler Settings and then choose Apply Persistent Profile and the appropriate viewer application from the corresponding drop down list.
Refocus your viewer by focusing your mouse cursor on the desired location on the screen, then pressing Button 5 (< Alt >) and Button 1 (Mouse Left Click) simultaneously.
Zoom and pan around by holding Button 5 (< Alt >) and thumbing the Right Stick.
Change zoom and pan angles by holding Button 5 (< Alt >) and Button 3 (< Page Down >) or Button 4 (< Page Up >).
For Dragon users, Button 8 (< Enter >) will press the < Enter > key to send your text through chat.
For Dragon users, Button 6 (Num < + >) toggle your microphone on and off according to the default microphone toggle in Dragon's Hotkey Options.
Embellish your Logitech Profiler further with your own shortcuts depending on your Second Life interests and habits.