[Imgema]

Did you map your controller in the configuration utility first?
http://kodi.wiki/view/HOW-TO:Modify_joystick.xml
The Xbox 360 is a Gamepad not a Joystick or am i wrong so you should be looking at the gamepad.xml looks like what you where after.
<SlideShow>
<gamepad>
<A>Pause</A>
<B>Stop</B>
<Y>Rotate</Y>
<X>ZoomNormal</X>
<black>Info</black>
<white>Info</white>
<righttrigger>NextPicture</righttrigger>
<lefttrigger>PreviousPicture</lefttrigger>
<dpadleft>PreviousPicture</dpadleft>
<dpadright>NextPicture</dpadright>
<dpadup>ZoomIn</dpadup>
<dpaddown>ZoomOut</dpaddown>
<leftthumbstick>AnalogMove</leftthumbstick>
<back>Stop</back>
</gamepad>
</SlideShow>

I tried all that.

XBOX 360 controller is affected by the joystick.xml. I also tried configuring it through the utility but it doesn't change anything. I also copied these lines from "gamepad" to "joystick" but again, no fix. The best thing i could do was to manually change "analogMoveX" and "Y" to "up", "down", "left" and "right" but that makes the analog stick work like the keyboard buttons (no smooth, analog movement).