linux-kernel - [PATCH 2/2] Input: synaptics - initialize pointer emulation usage

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Message-Id: <1360956981-1112-2-git-send-email-rydberg@euromail.se>
Date:	Fri, 15 Feb 2013 20:36:21 +0100
From:	"Henrik Rydberg" <rydberg@...omail.se>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Daniel Kurtz <djkurtz@...omium.org>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, Henrik Rydberg <rydberg@...omail.se>
Subject: [PATCH 2/2] Input: synaptics - initialize pointer emulation usage

To properly setup event parameters for emulated events, pass
the appropriate flag to the slot initialization function. Also,
all MT-related events should be setup before initialization.

Incidentally, this solves the issue of doubly filtered pointer
events.

Reported-by: Daniel Kurtz <djkurtz@...omium.org>
Signed-off-by: Henrik Rydberg <rydberg@...omail.se>
---
Hi Daniel,

This patch has only been compile tested, but chances are that it will
work for you, together with the previous patch.

Cheers,
Henrik

 drivers/input/mouse/synaptics.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 12d12ca..a8590ad 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1247,11 +1247,11 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
 
 	if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
-		input_mt_init_slots(dev, 2, 0);
 		set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
 					ABS_MT_POSITION_Y);
 		/* Image sensors can report per-contact pressure */
 		input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+		input_mt_init_slots(dev, 2, INPUT_MT_POINTER);
 
 		/* Image sensors can signal 4 and 5 finger clicks */
 		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
-- 
1.8.1.2

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