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-rw-r--r--Documentation/input/gamepad.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/input/gamepad.txt b/Documentation/input/gamepad.txt
index 8002c894c6b0..31bb6a4029ef 100644
--- a/Documentation/input/gamepad.txt
+++ b/Documentation/input/gamepad.txt
@@ -122,12 +122,14 @@ D-Pad:
BTN_DPAD_*
Analog buttons are reported as:
ABS_HAT0X and ABS_HAT0Y
+ (for ABS values negative is left/up, positive is right/down)
Analog-Sticks:
The left analog-stick is reported as ABS_X, ABS_Y. The right analog stick is
reported as ABS_RX, ABS_RY. Zero, one or two sticks may be present.
If analog-sticks provide digital buttons, they are mapped accordingly as
BTN_THUMBL (first/left) and BTN_THUMBR (second/right).
+ (for ABS values negative is left/up, positive is right/down)
Triggers:
Trigger buttons can be available as digital or analog buttons or both. User-
@@ -138,6 +140,7 @@ Triggers:
ABS_HAT2X (right/ZR) and BTN_TL2 or ABS_HAT2Y (left/ZL).
If only one trigger-button combination is present (upper+lower), they are
reported as "right" triggers (BTN_TR/ABS_HAT1X).
+ (ABS trigger values start at 0, pressure is reported as positive values)
Menu-Pad:
Menu buttons are always digital and are mapped according to their location