Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758114Ab2EDMzJ (ORCPT ); Fri, 4 May 2012 08:55:09 -0400 Received: from mail-wg0-f44.google.com ([74.125.82.44]:56751 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757894Ab2EDMyJ (ORCPT ); Fri, 4 May 2012 08:54:09 -0400 From: "benjamin.tissoires" To: "benjamin.tissoires" , Dmitry Torokhov , Henrik Rydberg , Jiri Kosina , Stephane Chatty , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/5] HID: hid-multitouch: support arrays for the split of the touches in a report Date: Fri, 4 May 2012 14:53:48 +0200 Message-Id: <1336136030-18503-4-git-send-email-benjamin.tissoires@gmail.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1336136030-18503-1-git-send-email-benjamin.tissoires@gmail.com> References: <1336136030-18503-1-git-send-email-benjamin.tissoires@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1302 Lines: 38 From: Benjamin Tissoires Win8 certification introduced the ability to transmit two X and two Y per touch. The specification precises that it must be in an array, with a report count == 2. This test guarantees that we split the touches on the last element in this array. Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-multitouch.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index e205d1e..3ee22ec 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -589,7 +589,10 @@ static int mt_event(struct hid_device *hid, struct hid_field *field, return 0; } - if (usage->hid == td->last_slot_field) + if (usage->hid == td->last_slot_field && + usage == &field->usage[field->maxusage - 1]) + /* we only take into account the last report + * of a field if report_count > 1 */ mt_complete_slot(td); if (field->index == td->last_field_index -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/