@@ -390,6 +390,20 @@ can report through the rotational axes (absolute and/or relative rx, ry, rz).
All other axes retain their meaning. A device must not mix
regular directional axes and accelerometer axes on the same event node.
+INPUT_PROP_HAPTIC_TOUCHPAD
+--------------------------
+
+The INPUT_PROP_HAPTIC_TOUCHPAD property indicates that device:
+- supports simple haptic auto and manual triggering
+- can differentiate between at least 5 fingers
+- uses correct resolution for the X/Y (units and value)
+- report correct force per touch, and correct units for them (newtons or grams)
+- follows the MT protocol type B
+
+Summing up, such devices follow the MS spec for input devices in
+Win8 and Win8.1, and in addition support the Simple haptic controller HID table,
+and report correct units for the pressure.
+
Guidelines
==========
@@ -27,6 +27,7 @@
#define INPUT_PROP_TOPBUTTONPAD 0x04 /* softbuttons at top of pad */
#define INPUT_PROP_POINTING_STICK 0x05 /* is a pointing stick */
#define INPUT_PROP_ACCELEROMETER 0x06 /* has accelerometer */
+#define INPUT_PROP_HAPTIC_TOUCHPAD 0x07 /* is a haptic touchpad */
#define INPUT_PROP_MAX 0x1f
#define INPUT_PROP_CNT (INPUT_PROP_MAX + 1)
INPUT_PROP_HAPTIC_TOUCHPAD property is to be set for a device with simple haptic capabilities. Signed-off-by: Angela Czubak <acz@semihalf.com> --- Documentation/input/event-codes.rst | 14 ++++++++++++++ include/uapi/linux/input-event-codes.h | 1 + 2 files changed, 15 insertions(+)