From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06C18C433E1 for ; Sat, 27 Mar 2021 13:07:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D1CE16193D for ; Sat, 27 Mar 2021 13:07:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230328AbhC0NGi (ORCPT ); Sat, 27 Mar 2021 09:06:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230266AbhC0NG1 (ORCPT ); Sat, 27 Mar 2021 09:06:27 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5086BC0613B1 for ; Sat, 27 Mar 2021 06:06:27 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id h8so2235029plt.7 for ; Sat, 27 Mar 2021 06:06:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=NeWUvZBV3NAy1b0eckELIbBZ7sti/n1sLYnD4r2cjaU=; b=V7uM0AaI1Vy/mmqpuTVu5F6+98YPDzOa3QS6tRkWeJqhrflMONfCXtOxXVR+CeiPil OOfaxOtAMeVEW9wE0EU3U/8aNghtzuUvVN+0Tj57+W+4g0ilQOODiDLDu4ZqAo1Q5eDZ gA+He13KWVwNYaYTNUNParLXG5GYDbblaqABSUDurI1FTjn1US0ZZytlzdZy1GfL9eTj 6AiiVM3A4YdUGUWE7qQQE8jI92o4qKYvaNjn1M+d5ypKCue3NJWeRTSPKLu0QD2qL02+ QPga2RPtmLpztA8/lPGTRpgVNY3C5jdCBZyWgFtvZg5dNoDfe5bQnAmF2J2ka+A7JBSD VHtw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=NeWUvZBV3NAy1b0eckELIbBZ7sti/n1sLYnD4r2cjaU=; b=OQek2lJ5JINezfYdN/FzSPFL1N9Hrs+KstU7K4gEHavdffvSAOBebg2MG5VSzkf93H o1iOiAOoXY7cx7j7Vx5CFZUuJOLilpC6gPTJpZlaP8YtEFfGkPaUPPh5FSTyM463Sir8 n6DupTSrFUI1y44GOBZ2bM2pf9hRN1Yj1oiCT6upmfoHw0/PaKEZt5aOEI8se7HRJp94 td6+SEZok3uxKEglKEqAG8cnj7Pt4tKVQlg+MI1AQDLQ/ytdYJlMPmrqVyNpnsv44wYa dxBf0TaMvqn9SYDIDcGct3toAVm5DfVUqXm1nkYcYMOdvPrmLoH52NtCyi5cYC+2TR6i jUpA== X-Gm-Message-State: AOAM532sXgN0NNpKjilSMBewUXwwXz+MOfd7J5FRI6zAWA5st7gy5LmE Sw/QHj4cm3zT07LU1kWYSO9puwFV+yK0Hquf X-Google-Smtp-Source: ABdhPJyDnhcP7BeBHXX2rPqMXwkOQiZdussDPATmYqyQnp7HAsi0OqWSUVIloMNi3QBpMsmjXTtyew== X-Received: by 2002:a17:903:2285:b029:e6:faf5:eaff with SMTP id b5-20020a1709032285b02900e6faf5eaffmr19574014plh.70.1616850386727; Sat, 27 Mar 2021 06:06:26 -0700 (PDT) Received: from johnchen902-arch-ryzen.. (2001-b011-3815-3a1f-9afa-9bff-fe6e-3ce2.dynamic-ip6.hinet.net. [2001:b011:3815:3a1f:9afa:9bff:fe6e:3ce2]) by smtp.gmail.com with ESMTPSA id ot17sm6413787pjb.50.2021.03.27.06.06.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 27 Mar 2021 06:06:26 -0700 (PDT) From: John Chen To: linux-kernel@vger.kernel.org Cc: Rohit Pidaparthi , RicardoEPRodrigues , Jiri Kosina , Benjamin Tissoires , John Chen Subject: [PATCH 2/4] HID: magicmouse: fix 3 button emulation of Mouse 2 Date: Sat, 27 Mar 2021 21:05:06 +0800 Message-Id: <20210327130508.24849-3-johnchen902@gmail.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210327130508.24849-1-johnchen902@gmail.com> References: <20210327130508.24849-1-johnchen902@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is observed that, with 3 button emulation, when middle button is clicked, either the left button or right button is clicked as well. It is caused by hidinput "correctly" acting on the event, oblivious to the 3 button emulation. As raw_event has taken care of everything, no further processing is needed. However, the only way to stop at raw_event is to return an error (negative) value. Therefore, the processing is stopped at event instead. Signed-off-by: John Chen --- drivers/hid/hid-magicmouse.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index 7aad6ca56780..c646b4cd3783 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -440,6 +440,21 @@ static int magicmouse_raw_event(struct hid_device *hdev, return 1; } +static int magicmouse_event(struct hid_device *hdev, struct hid_field *field, + struct hid_usage *usage, __s32 value) +{ + struct magicmouse_sc *msc = hid_get_drvdata(hdev); + if (msc->input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 && + field->report->id == MOUSE2_REPORT_ID) { + // magic_mouse_raw_event has done all the work. Skip hidinput. + // + // Specifically, hidinput may modify BTN_LEFT and BTN_RIGHT, + // breaking emulate_3button. + return 1; + } + return 0; +} + static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev) { int error; @@ -754,6 +769,7 @@ static struct hid_driver magicmouse_driver = { .id_table = magic_mice, .probe = magicmouse_probe, .raw_event = magicmouse_raw_event, + .event = magicmouse_event, .input_mapping = magicmouse_input_mapping, .input_configured = magicmouse_input_configured, }; -- 2.31.0