From: Angela Czubak <aczubak@xxxxxxxxxx>
FF_HAPTIC effect type can be used to trigger haptic feedback with HID
simple haptic usages.
Signed-off-by: Angela Czubak <aczubak@xxxxxxxxxx>
Co-developed-by: Jonathan Denose <jdenose@xxxxxxxxxx>
Signed-off-by: Jonathan Denose <jdenose@xxxxxxxxxx>
---
include/uapi/linux/input.h | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index 2557eb7b056178b2b8be98d9cea855eba1bd5aaf..a440fafaa018947f4d9ca0a15af2b4c6bd0ae6a0 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -428,6 +428,24 @@ struct ff_rumble_effect {
__u16 weak_magnitude;
};
+/**
+ * struct ff_haptic_effect
+ * @hid_usage: hid_usage according to Haptics page (WAVEFORM_CLICK, etc.)
+ * @vendor_id: the waveform vendor ID if hid_usage is in the vendor-defined range
+ * @vendor_waveform_page: the vendor waveform page if hid_usage is in the vendor-defined range
+ * @intensity: strength of the effect as percentage
+ * @repeat_count: number of times to retrigger effect
+ * @retrigger_period: time before effect is retriggered (in ms)
+ */
+struct ff_haptic_effect {
+ __u16 hid_usage;
+ __u16 vendor_id;
+ __u8 vendor_waveform_page;
+ __u16 intensity;
+ __u16 repeat_count;
+ __u16 retrigger_period;
+};
+
/**
* struct ff_effect - defines force feedback effect
* @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING,
@@ -464,6 +482,7 @@ struct ff_effect {
struct ff_periodic_effect periodic;
struct ff_condition_effect condition[2]; /* One for each axis */
struct ff_rumble_effect rumble;
+ struct ff_haptic_effect haptic;
} u;
};
@@ -471,6 +490,7 @@ struct ff_effect {
* Force feedback effect types
*/
+#define FF_HAPTIC 0x4f
#define FF_RUMBLE 0x50
#define FF_PERIODIC 0x51
#define FF_CONSTANT 0x52
@@ -480,7 +500,7 @@ struct ff_effect {
#define FF_INERTIA 0x56
#define FF_RAMP 0x57
-#define FF_EFFECT_MIN FF_RUMBLE
+#define FF_EFFECT_MIN FF_HAPTIC
#define FF_EFFECT_MAX FF_RAMP
/*
--
2.51.0.rc1.163.g2494970778-goog
