Here's the list of the available joystick buttons for the input config system (replace the * with the ID of the joystick you want to use, starting with 1):

• JOY_1_*
• JOY_2_*
• JOY_3_*
• JOY_4_*
• JOY_5_*
• JOY_6_*
• JOY_7_*
• JOY_8_*
• JOY_9_*
• JOY_10_*
• JOY_11_*
• JOY_12_*
• JOY_13_*
• JOY_14_*
• JOY_15_*
• JOY_16_*

Here's the list of the available joystick axes for the input config system:

• JOY_X
• JOY_Y
• JOY_Z
• JOY_R
• JOY_U
• JOY_V
• JOY_POV