linux-kernel - [PATCH v2 3/7] HID: multitouch: do not map usage from non used reports

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Date:	Fri, 22 Mar 2013 18:38:30 +0100
From:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:	Henrik Rydberg <rydberg@...omail.se>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...c.fr>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/7] HID: multitouch: do not map usage from non used reports

hid-multitouch only handles touch events, so there is no point in
mapping other kind of events.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
---
 drivers/hid/hid-multitouch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 35b6025..611c88cb 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -741,7 +741,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	* such as Mouse that might have the same GenericDesktop usages. */
 	if (field->application != HID_DG_TOUCHSCREEN &&
 	    field->application != HID_DG_TOUCHPAD)
-		return 0;
+		return -1;
 
 	/* eGalax devices provide a Digitizer.Stylus input which overrides
 	 * the correct Digitizers.Finger X/Y ranges.
-- 
1.8.1.4

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