Help configuring xbox 360 controller

[tmt345]

I've got pretty much everything done I think but I need to know what to:

-Put for threshold (its at 50 except for triggers)... I have no idea what this is!
-What is modifier?
-How do I make the triggers sense it half way, it only detects it if I push it down all the way.
-What is background input?
-What is square stick?

I know this is alot of questions but I'm sure lots of people are trying to use an Xbox 360 controller and noobs like me probably need answers to this!

I was also gonna ask how to make rumble work for both sides cause I thought you could only pick one option but then I figured out you could choose both the Motor L AND Motor R by using Ctrl button.

[Billiard26]

Threshold is how far you have to push an analog control for it to register as a digital button press.
I'm assuming you are using normal buttons and dpad directions for the buttons/dpad, so threshold will have no effect.

Threshold on the triggers does the same thing. How far you have to pull your analog triggers (set to "L" and "R") before it registers as a full trigger pull.
The gamecube controller has actual buttons under the triggers which click when you pull them all the way in.
You must set L/R-Analog to your triggers as well, if you want them to be pressure sensitive.

Background input will allow you to use your gamepad when the Dolphin window isn't active.
Square stick will attempt to turn a square joystick into a circular one. The 360 controller's analog sticks are circular, so you probably don't need this.

Modifier would be used with a keyboard: so you can push an analog stick half-way when all you have is keyboard keys.

[tmt345]

great answer!

thanks