From nobody Sun Oct 5 14:09:57 2025 Received: from mail-il1-f201.google.com (mail-il1-f201.google.com [209.85.166.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D0775270572 for ; Mon, 4 Aug 2025 14:11:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754316685; cv=none; b=PgDr9Aom1MMA1eWHXLIc38DhpVieEu28yqMdJHzUzbi1CqfExosA6b7ZgMx1ctVHgzUV8XLSgTOPeV/g7B/Ogj2gNM5eREfnAuZ/9Q/VA8/w1r+o3I285tZgEoOwcRMY6ANVrWVmn3fn3Kh2NLXrJvWwYYm/F68dzq65xNmEEYg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754316685; c=relaxed/simple; bh=sM1diI0+8QwBlMWWKxPjiFubTZJ47+1Rz6WjGiYKJLg=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=WgbJeRuqtlJEmKWQ9fchTCb61nJyqDpVpBDNDazoqPomUPkg/zQVrloHdX0OkJ/REO1+OPmdZhFXUKyUp1oB2rFElqEE4DF/TaoACJvgrqXYXexzS0IVzQ14BfDA+l+Q+XoGKl97Z/C1AO2vqwdg5bY93ed61JVgQmKQ1ouBZtA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jdenose.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=YRThD+W3; arc=none smtp.client-ip=209.85.166.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jdenose.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="YRThD+W3" Received: by mail-il1-f201.google.com with SMTP id e9e14a558f8ab-3e3ef793a6aso85679435ab.2 for ; Mon, 04 Aug 2025 07:11:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1754316682; x=1754921482; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=HKCR9N5mLRlkbi0TLaRQSzln9H2RUOxEy61mEdM0ngY=; b=YRThD+W33fynYG4tAFFpcjdQAVOVjlusl0PCOE2Cw9y6YzovtmhFYCTi5qC2Oqc0hJ ZT56AYTwPseeCcOzC5vILQB7QUVfKbrLQnpDVFYQd0TqE7QC6yUfNWqPXAZZ+RuhOi37 3gqLQfNTtfYOERgN41k1ow0fiyVwjrDh7pC3sKeANRj1mPKylIV9Gym0yFkV+O7ad2sx 1+hFgG96GXydtUIeMZsNg8uZUwhvn6wYvMeTXYdE2yVpEJj66fAqEuGNIbIDGJHPkBzO VMEOphI6y5otDHXYQikl3xXMCwh/rBytp4b0fHpCnVgP/03fIT97dQif9tCvm7a10CsV BvKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754316682; x=1754921482; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=HKCR9N5mLRlkbi0TLaRQSzln9H2RUOxEy61mEdM0ngY=; b=HCjoMAZ37wdmZ66Oh/i1L2IPfoaLeV/kGeyC776SPbisSX4ZaFt9Uexbm5seOSTGxg hGuyMkw1LV57BlKtI9yrqt51g3onp8oTNwnKvErLmoCCGg/Cm0bcmeqDgn6oC9L4yFdl YVmfhKHH370/0sBF/o9Df3HoDZwIAvUXEZ71iCbekF+zzydwhIZa8OLzGQdJDwfCGiy4 k7p8g8/3FvSuxwgUS4z/PhmaeHmB+mTLReijnluh45Wxa2ofxgIWScJ18IqEE56lgleW oE48nrs22Yxad6yWhYrh+XgXLPC2xD0LU66q2x8px2tkK2ixdmJyfJ1ib2vWAllGvAF3 jnGQ== X-Forwarded-Encrypted: i=1; AJvYcCXTvCO8La0CBEuuVA2LIAgMI7BD+dyaLsHFnRPuHAOcZfqaNtTxJkyeJ3xTxvAQ896nuvzNvNCIFZnkVJY=@vger.kernel.org X-Gm-Message-State: AOJu0Yz9f8mnxBXLDJz+aD/72vBmyvLBnZXmE3Mxmd5fLxYl9nse5kS8 dC8NBenYTd0XvhmF1xy8yBSg6iZJgsWxP/oUkjoawiglvPFCeenOQUtVbBCtg12VUKt0T2copvB fbe9CuF9k+A== X-Google-Smtp-Source: AGHT+IG62l0XeGfQHwqlqdPD5To0kn4v4Bx1GZOjIxLss9+jyRgToxf6b+9GRK7gUtWE2MzF7/Yg60oLI5z1 X-Received: from ilsh9.prod.google.com ([2002:a05:6e02:529:b0:3e3:f33a:a85]) (user=jdenose job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6e02:8e:b0:3dd:89b0:8e1b with SMTP id e9e14a558f8ab-3e4161b3e64mr175173845ab.15.1754316682117; Mon, 04 Aug 2025 07:11:22 -0700 (PDT) Date: Mon, 04 Aug 2025 14:11:18 +0000 In-Reply-To: <20250804-support-forcepads-v2-0-138ca980261d@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250804-support-forcepads-v2-0-138ca980261d@google.com> X-Mailer: b4 0.14.2 Message-ID: <20250804-support-forcepads-v2-3-138ca980261d@google.com> Subject: [PATCH v2 03/11] Input: add INPUT_PROP_HAPTIC_TOUCHPAD From: Jonathan Denose To: Jiri Kosina , Benjamin Tissoires , Dmitry Torokhov , Jonathan Corbet , Henrik Rydberg Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Angela Czubak , "Sean O'Brien" , Jonathan Denose Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Angela Czubak INPUT_PROP_HAPTIC_TOUCHPAD property is to be set for a device with simple haptic capabilities. Signed-off-by: Angela Czubak Co-developed-by: Jonathan Denose Signed-off-by: Jonathan Denose --- Documentation/input/event-codes.rst | 14 ++++++++++++++ include/uapi/linux/input-event-codes.h | 1 + 2 files changed, 15 insertions(+) diff --git a/Documentation/input/event-codes.rst b/Documentation/input/even= t-codes.rst index b4557462edd7b3fef9e9cd6c2c3cb2d05bb531ab..6f7aa9e8207c4aa825d9694ad89= 1f4d105fe8196 100644 --- a/Documentation/input/event-codes.rst +++ b/Documentation/input/event-codes.rst @@ -400,6 +400,20 @@ can report through the rotational axes (absolute and/o= r relative rx, ry, rz). All other axes retain their meaning. A device must not mix regular directional axes and accelerometer axes on the same event node. =20 +INPUT_PROP_HAPTIC_TOUCHPAD +-------------------------- + +The INPUT_PROP_HAPTIC_TOUCHPAD property indicates that device: +- supports simple haptic auto and manual triggering +- can differentiate between at least 5 fingers +- uses correct resolution for the X/Y (units and value) +- report correct force per touch, and correct units for them (newtons or g= rams) +- follows the MT protocol type B + +Summing up, such devices follow the MS spec for input devices in +Win8 and Win8.1, and in addition support the Simple haptic controller HID = table, +and report correct units for the pressure. + Guidelines =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =20 diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/in= put-event-codes.h index 3b2524e4b667d1e7cc02ff5cb674e7c2ac069a66..efe8c36d4ee9a938ffb1b0dd0dd= d0ec6a3fcb8fe 100644 --- a/include/uapi/linux/input-event-codes.h +++ b/include/uapi/linux/input-event-codes.h @@ -27,6 +27,7 @@ #define INPUT_PROP_TOPBUTTONPAD 0x04 /* softbuttons at top of pad */ #define INPUT_PROP_POINTING_STICK 0x05 /* is a pointing stick */ #define INPUT_PROP_ACCELEROMETER 0x06 /* has accelerometer */ +#define INPUT_PROP_HAPTIC_TOUCHPAD 0x07 /* is a haptic touchpad */ =20 #define INPUT_PROP_MAX 0x1f #define INPUT_PROP_CNT (INPUT_PROP_MAX + 1) --=20 2.50.1.565.gc32cd1483b-goog