[PATCH 14/16] HID: hid-ntrig: Single touch mode tap

[Andy Whitcroft]

From: Rafi Rubin <rafi at seas.upenn.edu>

Add DOUBLETAP to events emitted when in single touch only mode.

Users with a single touch firmware report not seeing the DOUBLETAP events; this
is a side effect of dropping old mapping for confidence. The confidence mapping
may be fine for singletouch mode but causes problems in multitouch mode.

Signed-off-by: Rafi Rubin <rafi at seas.upenn.edu>
Signed-off-by: Jiri Kosina <jkosina at suse.cz>
(cherry picked from commit ff5cf34c809cd5950579e46e7c10c29bc647aaf1)

Signed-off-by: Andy Whitcroft <apw at canonical.com>
---
 drivers/hid/hid-ntrig.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index f6f882d..3234c72 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -165,6 +165,8 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 			 * to emit a normal (X, Y) position
 			 */
 			if (!nd->reading_mt) {
+				input_report_key(input, BTN_TOOL_DOUBLETAP,
+						 (nd->confidence != 0));
 				input_event(input, EV_ABS, ABS_X, nd->x);
 				input_event(input, EV_ABS, ABS_Y, nd->y);
 			}
-- 
1.7.0