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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED,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 ACA89C4321D for ; Thu, 23 Aug 2018 18:31:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6E10821564 for ; Thu, 23 Aug 2018 18:31:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="CUP0hycl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E10821564 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727569AbeHWWCc (ORCPT ); Thu, 23 Aug 2018 18:02:32 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:34807 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727412AbeHWWCc (ORCPT ); Thu, 23 Aug 2018 18:02:32 -0400 Received: by mail-pg1-f193.google.com with SMTP id u10-v6so1331176pgr.1 for ; Thu, 23 Aug 2018 11:31:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/3CjhislnGGqU2g8MmW8SwCvogvUhECLJdE3KndpOdQ=; b=CUP0hyclBxjARnYZIqgC1rZExSxHVaRJ6nBohdn0WryRFx2dOKG4+LEUy+BorSCeWS wWlwOeE043TYImeCxzPcvt91AOUviZJA0IhMwIakRH/hYxA9eqo5dceu5NwsaTLNAggt clhjlutkPz95ooj0QXlPuYiwK+UM6XJyKODIo= 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=/3CjhislnGGqU2g8MmW8SwCvogvUhECLJdE3KndpOdQ=; b=MtT7UC6LsUVxfF15jL2ZwNfJYpjqLlkKFOY+H0by2m2F27sdE6M0fT7NqDCeUuM3Ax 35mjH4WVjsVSp0F/0hk5Sl2nWw1a2ISdT5FbqJwKXFj0nqPPy8aHyD3IptYNSUQ6InYk 2OOwK7vO2jJNxxe2PJtKYoO9v+ggAZD6Jwvn1Htb9mN1Kl3qF97FGF4rFdP+HxnMkx2Y XioCDcOk7cDQRrAA9aWzARGMv//J/XDOt4DwH8jbDfdIjau+OjeFnSkvSDuQ7H04bGV2 SBXrEl9jDAecBmQ0D5tKPFyhOEU0EQTMJC4D9t2P7jAlFoAz9Z8P1jm1S8h8HUPSsWeW C/lA== X-Gm-Message-State: APzg51BYAm7i0hTJzlYNwpYIIMEWi9NKHLD/ildAcV3Z4bYZxRq5iOmQ ey10hfpLn8j+UosrMXXGfeIgAQ== X-Google-Smtp-Source: ANB0VdZHj3KxyeDaWF/JYIT1EXJYxyf6nl7xIC92Uw6WS9AEZxQdlX6W45BI+cKoEDajQY/5s4wOLA== X-Received: by 2002:a62:cc83:: with SMTP id j3-v6mr1231705pfk.255.1535049095292; Thu, 23 Aug 2018 11:31:35 -0700 (PDT) Received: from kolhar.mtv.corp.google.com ([2620:15c:202:201:356a:9de2:526a:5bc]) by smtp.gmail.com with ESMTPSA id p11-v6sm9054225pfj.72.2018.08.23.11.31.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 23 Aug 2018 11:31:34 -0700 (PDT) From: Harry Cutts To: linux-input , LKML Cc: Jiri Kosina , Dmitry Torokhov , Benjamin Tissoires , Harry Cutts , linux-doc@vger.kernel.org, Jonathan Corbet Subject: [PATCH 1/3] Add the `REL_WHEEL_HI_RES` event code Date: Thu, 23 Aug 2018 11:30:55 -0700 Message-Id: <20180823183057.247630-2-hcutts@chromium.org> X-Mailer: git-send-email 2.18.0.1017.ga543ac7ca45-goog In-Reply-To: <20180823183057.247630-1-hcutts@chromium.org> References: <20180823183057.247630-1-hcutts@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This event code represents scroll reports from high-resolution wheels, and will be used by future patches in this series. See the linux-input "Reporting high-resolution scroll events" thread [0] for more details. [0]: https://www.spinics.net/lists/linux-input/msg57380.html Signed-off-by: Harry Cutts --- Documentation/input/event-codes.rst | 11 ++++++++++- include/uapi/linux/input-event-codes.h | 1 + 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/input/event-codes.rst b/Documentation/input/event-codes.rst index a8c0873beb95..df024cb82829 100644 --- a/Documentation/input/event-codes.rst +++ b/Documentation/input/event-codes.rst @@ -190,7 +190,16 @@ A few EV_REL codes have special meanings: * REL_WHEEL, REL_HWHEEL: - These codes are used for vertical and horizontal scroll wheels, - respectively. + respectively. The value is the number of "notches" moved on the wheel, the + physical size of which varies by device. For high-resolution wheels (which + report multiple events for each notch of movement, or do not have notches) + this may be an approximation based on the high-resolution scroll events. + +* REL_WHEEL_HI_RES: + + - If a vertical scroll wheel supports high-resolution scrolling, this code + will be emitted in addition to REL_WHEEL. The value is the (approximate) + distance travelled by the user's finger, in 256ths of a millimeter. EV_ABS ------ diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h index 53fbae27b280..dad8d3890a3a 100644 --- a/include/uapi/linux/input-event-codes.h +++ b/include/uapi/linux/input-event-codes.h @@ -708,6 +708,7 @@ #define REL_DIAL 0x07 #define REL_WHEEL 0x08 #define REL_MISC 0x09 +#define REL_WHEEL_HI_RES 0x0a #define REL_MAX 0x0f #define REL_CNT (REL_MAX+1) -- 2.18.0.1017.ga543ac7ca45-goog