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[139.178.88.99]) by mx.google.com with ESMTPS id 98e67ed59e1d1-2c2d1137640si3017839a91.144.2024.06.10.01.11.16 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Jun 2024 01:11:16 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-207809-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@sang-engineering.com header.s=k1 header.b=OfuLmN+Q; arc=pass (i=1 spf=pass spfdomain=sang-engineering.com dkim=pass dkdomain=sang-engineering.com); spf=pass (google.com: domain of linux-kernel+bounces-207809-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-207809-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 18DC32824CE for ; Mon, 10 Jun 2024 08:11:16 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0C5E16F314; Mon, 10 Jun 2024 08:10:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="OfuLmN+Q" Received: from mail.zeus03.de (www.zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A249357C9C for ; Mon, 10 Jun 2024 08:10:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718007039; cv=none; b=GN2HDOBrXXWIDgDbFtR1MxTJhBsRedaRK54cW4UEviD9LuV767AJdM4bh+OtM00pc98oVQ2gVYIvF9hCiz3zc5XfLv3LxXKTBGHZ0ety55MVLsYkFZ20mEkfd0TzvA4hPvmtgeaUvFPwmdpZuMhD22a3VgFjRsJQwEaKkngKbXY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718007039; c=relaxed/simple; bh=tp/NGE8RxyPHEtfvReImUJ2XG70OLA+d30WQHKc29AY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=avgsWaoQuQpY2SQ1i6yJ6nMDOecw9hI8gU2fk1WrbC/Vl9EG7KmxyfzxI5u59mFmQ1VvwlrCY9YFJc7AB2musDKiJ37BqNclrVt7Pb2Pcc8lc+vQzotq96/p4SZG9RN1m2B5wP4S3hRzPDWw0BGkkwsxDr6k6gVALM9m87R159w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=OfuLmN+Q; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type :content-transfer-encoding; s=k1; bh=CFQTXPUSMeT7AYVoruD7Npcs4kM +ge+9KCd3MJfEn/4=; b=OfuLmN+Q+W0aDkLcJCZ4mUk7jiEUuZ4JC+Z6tSZcVUX 2HmLO2jmontJoUW/aqt4hGsD3tajJViqRXKq3nrEcjhKz6GcGgahCc/UM5NZmPL4 xmqcAiB2NJbjSCJO8M/WUROWNmWh3rpt0IALcOTngo1zd5rwbLwIN5h8TwARIL+m IcMeH+qheGVLRiFVS5Z8C+lSSt2lVu1fGRlEzhWpt9B6Sfg9EAJXLLQLxJ1TtscE i2M/izCuQsEJKg1ZkkT6j0ynNEuCw2y4F5cJlvyD1dcUQYBhqD79cTXApX84SfQr mFdiJpONj6PFkxwwT2KHh1Y+q2aSob6+vRnOz021slQ== Received: (qmail 4192466 invoked from network); 10 Jun 2024 10:10:27 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 10 Jun 2024 10:10:27 +0200 X-UD-Smtp-Session: l3s3148p1@Yk6broQa0OYgAwDPXymAAHMyzy0c7Kdl From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: Easwar Hariharan , Andi Shyti , linux-doc@vger.kernel.org, Wolfram Sang , linux-kernel@vger.kernel.org Subject: [PATCH v2 3/6] docs: i2c: summary: update speed mode description Date: Mon, 10 Jun 2024 10:10:18 +0200 Message-ID: <20240610081023.8118-4-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240610081023.8118-1-wsa+renesas@sang-engineering.com> References: <20240610081023.8118-1-wsa+renesas@sang-engineering.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fastest I2C mode is 5 MHz. Update the docs and reword the paragraph slightly. Signed-off-by: Wolfram Sang Reviewed-by: Easwar Hariharan --- Documentation/i2c/summary.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/i2c/summary.rst b/Documentation/i2c/summary.rst index e3ab1d414014..a1e5c0715f8b 100644 --- a/Documentation/i2c/summary.rst +++ b/Documentation/i2c/summary.rst @@ -3,8 +3,8 @@ Introduction to I2C and SMBus ============================= I²C (pronounce: I squared C and written I2C in the kernel documentation) is -a protocol developed by Philips. It is a slow two-wire protocol (variable -speed, up to 400 kHz), with a high speed extension (3.4 MHz). It provides +a protocol developed by Philips. It is a two-wire protocol with variable +speed (typically up to 400 kHz, high speed modes up to 5 MHz). It provides an inexpensive bus for connecting many types of devices with infrequent or low bandwidth communications needs. I2C is widely used with embedded systems. Some systems use variants that don't meet branding requirements, -- 2.43.0