Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759622Ab2JYOOH (ORCPT ); Thu, 25 Oct 2012 10:14:07 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:63311 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946072Ab2JYOLE (ORCPT ); Thu, 25 Oct 2012 10:11:04 -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 03/10] HID: hid-multitouch: support arrays for the split of the touches in a report Date: Thu, 25 Oct 2012 16:09:42 +0200 Message-Id: <1351174189-24719-4-git-send-email-benjamin.tissoires@gmail.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1351174189-24719-1-git-send-email-benjamin.tissoires@gmail.com> References: <1351174189-24719-1-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: 1578 Lines: 47 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 | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 1382554..e96ecc3 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -577,12 +577,16 @@ static int mt_event(struct hid_device *hid, struct hid_field *field, return 0; } - if (usage->hid == td->last_slot_field) - mt_complete_slot(td, field->hidinput->input); - - if (field->index == td->last_field_index - && td->num_received >= td->num_expected) - mt_sync_frame(td, field->hidinput->input); + if (usage_index + 1 == field->report_count) { + /* we only take into account the last report + * of a field if report_count > 1 */ + if (usage->hid == td->last_slot_field) + mt_complete_slot(td, field->hidinput->input); + + if (field->index == td->last_field_index + && td->num_received >= td->num_expected) + mt_sync_frame(td, field->hidinput->input); + } } -- 1.7.11.7 -- 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/