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-rw-r--r--drivers/input/input-mt.c10
-rw-r--r--include/linux/input/mt.h2
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
index a1bbec9cda8d..8de52e3c00c0 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -131,8 +131,10 @@ EXPORT_SYMBOL(input_mt_destroy_slots);
* inactive, or if the tool type is changed, a new tracking id is
* assigned to the slot. The tool type is only reported if the
* corresponding absbit field is set.
+ *
+ * Returns true if contact is active.
*/
-void input_mt_report_slot_state(struct input_dev *dev,
+bool input_mt_report_slot_state(struct input_dev *dev,
unsigned int tool_type, bool active)
{
struct input_mt *mt = dev->mt;
@@ -140,14 +142,14 @@ void input_mt_report_slot_state(struct input_dev *dev,
int id;
if (!mt)
- return;
+ return false;
slot = &mt->slots[mt->slot];
slot->frame = mt->frame;
if (!active) {
input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
- return;
+ return false;
}
id = input_mt_get_value(slot, ABS_MT_TRACKING_ID);
@@ -156,6 +158,8 @@ void input_mt_report_slot_state(struct input_dev *dev,
input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, id);
input_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, tool_type);
+
+ return true;
}
EXPORT_SYMBOL(input_mt_report_slot_state);
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
index d7188de4db96..3f4bf60b0bb5 100644
--- a/include/linux/input/mt.h
+++ b/include/linux/input/mt.h
@@ -100,7 +100,7 @@ static inline bool input_is_mt_axis(int axis)
return axis == ABS_MT_SLOT || input_is_mt_value(axis);
}
-void input_mt_report_slot_state(struct input_dev *dev,
+bool input_mt_report_slot_state(struct input_dev *dev,
unsigned int tool_type, bool active);
void input_mt_report_finger_count(struct input_dev *dev, int count);