linux-kernel - Re: [PATCH v3 5/5] hid-multitouch: migrate 3M PCT touch screens to hid-multitouch

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Message-ID: <20110321190606.GA1792@polaris.bitmath.org>
Date:	Mon, 21 Mar 2011 20:06:07 +0100
From:	"Henrik Rydberg" <rydberg@...omail.se>
To:	Benjamin Tissoires <benjamin.tissoires@...c.fr>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...-enac.fr>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/5] hid-multitouch: migrate 3M PCT touch screens to
 hid-multitouch

Hi Benjamin,

> I tested it against 3M1968. I'll try to have it again to make more testing.
> What symptoms do you have?

With the modification below, it works as expected, and you can add

    Reviewed-and-tested-by: Henrik Rydberg <rydberg@...omail.se>

Thanks!

Henrik

---

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 7684e96..0f5b89f 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -424,6 +424,8 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 			break;
 
 		default:
+			if (td->last_field_index && field->index == td->last_field_index)
+				break;
 			/* fallback to the generic hidinput handling */
 			return 0;
 		}

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