RE: [PATCH] Input: /input/input-mt.c Emit BTN_TOO_FINGER in function input_mt_report_pointer_emulation if touchpad meets hover condition Signed-off-by: KT Liao <kt.liao@xxxxxxxxxx>

[廖崇榮]

Hi Dmitry,

I up-streamed the patch last Sunday, please let me know if you have other
concern.

Thanks your support   KT

-----Original Message-----
From: KT Liao [mailto:ktalex.liao@xxxxxxxxx] 
Sent: Sunday, May 29, 2016 11:39 AM
To: linux-kernel@xxxxxxxxxxxxxxx; linux-input@xxxxxxxxxxxxxxx;
dmitry.torokhov@xxxxxxxxx
Cc: phoenix@xxxxxxxxxx; kt.liao@xxxxxxxxxx; jeff.chung@xxxxxxxxxx;
charliemooney@xxxxxxxxxx
Subject: [PATCH] Input: /input/input-mt.c Emit BTN_TOO_FINGER in function
input_mt_report_pointer_emulation if touchpad meets hover condition
Signed-off-by: KT Liao <kt.liao@xxxxxxxxxx>

---
 drivers/input/input-mt.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c index
54fce56..b89aaa7 100644
--- a/drivers/input/input-mt.c
+++ b/drivers/input/input-mt.c
@@ -218,8 +218,17 @@ void input_mt_report_pointer_emulation(struct input_dev
*dev, bool use_count)
 	}
 
 	input_event(dev, EV_KEY, BTN_TOUCH, count > 0);
-	if (use_count)
+
+	if (use_count) {
+		if (count == 0 &&
+		    !test_bit(ABS_MT_DISTANCE, dev->absbit) &&
+		    test_bit(ABS_DISTANCE, dev->absbit) &&
+		    input_abs_get_val(dev, ABS_DISTANCE) != 0) {
+			count = 1;
+		}
 		input_mt_report_finger_count(dev, count);
+	}
+
 
 	if (oldest) {
 		int x = input_mt_get_value(oldest, ABS_MT_POSITION_X);
--
2.7.4