linux-kernel - [PATCH 3.12 03/66] Input: Add INPUT_PROP

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Message-Id: <a4e2b94ab9353230fe45187ee0c15a2fc9195fc3.1417878427.git.jslaby@suse.cz>
Date:	Sat,  6 Dec 2014 16:06:55 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 03/66] Input: Add INPUT_PROP_TOPBUTTONPAD device property

From: Hans de Goede <hdegoede@...hat.com>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit f37c013409bb78ebb958821aa10d069e707cabac upstream.

On some newer laptops with a trackpoint the physical buttons for the
trackpoint have been removed to allow for a larger touchpad. On these
laptops the buttonpad has clearly marked areas on the top which are to be
used as trackpad buttons.

Users of the event device-node need to know about this, so that they can
properly interpret BTN_LEFT events as being a left / right / middle click
depending on where on the button pad the clicking finger is.

This commits adds a INPUT_PROP_TOPBUTTONPAD device property which drivers
for such buttonpads will use to signal to the user that this buttonpad not
only has the normal bottom button area, but also a top button area.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 include/uapi/linux/input.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index a3726275876d..f30db096455f 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -164,6 +164,7 @@ struct input_keymap_entry {
 #define INPUT_PROP_DIRECT		0x01	/* direct input devices */
 #define INPUT_PROP_BUTTONPAD		0x02	/* has button(s) under pad */
 #define INPUT_PROP_SEMI_MT		0x03	/* touch rectangle only */
+#define INPUT_PROP_TOPBUTTONPAD		0x04	/* softbuttons at top of pad */

 #define INPUT_PROP_MAX			0x1f
 #define INPUT_PROP_CNT			(INPUT_PROP_MAX + 1)
-- 
2.1.3

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