From patchwork Fri Jun 21 07:30:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 1950571 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=sang-engineering.com header.i=@sang-engineering.com header.a=rsa-sha256 header.s=k1 header.b=e5da2N5a; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:4601:e00::3; helo=am.mirrors.kernel.org; envelope-from=linux-i2c+bounces-4173-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [IPv6:2604:1380:4601:e00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4W58F427W8z1ydW for ; Fri, 21 Jun 2024 17:31:52 +1000 (AEST) 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 am.mirrors.kernel.org (Postfix) with ESMTPS id 794531F22D37 for ; Fri, 21 Jun 2024 07:31:49 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 651A216D9A5; Fri, 21 Jun 2024 07:30:29 +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="e5da2N5a" X-Original-To: linux-i2c@vger.kernel.org Received: from mail.zeus03.de (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 4048F14D449 for ; Fri, 21 Jun 2024 07:30:25 +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=1718955029; cv=none; b=jsLsorayjZ0Hjn8bVTZoZbJg7a2YnwqU7sw0LFyhaqb0aL5YS+hFF4CaE8vtRGF8d2kV9lw/gZNsr05XnSWTnPInaaWfnXFGNZ4XsanjXjExIroeMmuUUW4D5QE2UQxtI/Oa0NqFS4Pv6B7BjhooQOuZCwffU66fh3T2VI1I1p0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718955029; c=relaxed/simple; bh=tLa3YjKzTjbALrEqcR62zhXe0F7RUglCnTOQTHelM9A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=r8xQk3TCxbhgFB42+gqolxB8d3KKWIDKN5waLMXBa8b8F60nLOJX6GgxTRJIRp9PcO37W9zQAj+sdiZ0uhR99+LQO24IfAf9rO5Mr7qMsNXVGTWn+CmiN8Om3+hygor1aNaD7uea/HzG+RJqDd9K5hXRYJW/bKjyfx4NTmOXGbM= 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=e5da2N5a; 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=ns0TUqgMIMc2G1ba8motoRRT6bt z+ty/Oyg8gP8SWmY=; b=e5da2N5atOPx9sU3HnbguoDU4x5iKVRPkVDDDEpkwqK HiHr5/qo1NyhMdC7ZFGP1l4nyBrQ4Bl8zceH3ze4/zsaZLtJVZExLd0OcKPeZLY7 ABAEm0iSVfhE88OP5WB1ZwBuRf+oG70iJXj0zGbcnJi3TarvrlKV6NA6K3U50yK9 4zvR7Pkeidg7aGuAVEjMBakop8ISfFjQvXEaiT74LRrS1H98474Nha97hU09ZR2x uVR0zx1iKUWMbcwIB3vkFs0MtW7+aIyEgW8AVnYujhaCAie9kkos9Ok7U8stIymt 4Gf0KWZqSXZZObSm/cYDI4KdqqgREOOsCnMuPzMv1xQ== Received: (qmail 1279065 invoked from network); 21 Jun 2024 09:30:24 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 21 Jun 2024 09:30:24 +0200 X-UD-Smtp-Session: l3s3148p1@ZFyXZ2Eb0sMgAwDPXzjQABqqX1QYyOSW From: Wolfram Sang To: linux-kernel@vger.kernel.org Cc: Andi Shyti , Easwar Hariharan , Wolfram Sang , linux-i2c@vger.kernel.org Subject: [PATCH v4 2/6] docs: i2c: summary: update I2C specification link Date: Fri, 21 Jun 2024 09:30:09 +0200 Message-ID: <20240621073015.5443-3-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240621073015.5443-1-wsa+renesas@sang-engineering.com> References: <20240621073015.5443-1-wsa+renesas@sang-engineering.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Luckily, the specs are directly downloadable again, so update the link. Also update its title to the original name "I²C". Signed-off-by: Wolfram Sang Reviewed-by: Easwar Hariharan --- Documentation/i2c/summary.rst | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/Documentation/i2c/summary.rst b/Documentation/i2c/summary.rst index 28ff80a2302b..e3ab1d414014 100644 --- a/Documentation/i2c/summary.rst +++ b/Documentation/i2c/summary.rst @@ -11,11 +11,9 @@ systems. Some systems use variants that don't meet branding requirements, and so are not advertised as being I2C but come under different names, e.g. TWI (Two Wire Interface), IIC. -The latest official I2C specification is the `"I2C-bus specification and user -manual" (UM10204) `_ -published by NXP Semiconductors. However, you need to log-in to the site to -access the PDF. An older version of the specification (revision 6) is archived -`here `_. +The latest official I2C specification is the `"I²C-bus specification and user +manual" (UM10204) `_ +published by NXP Semiconductors, version 7 as of this writing. SMBus (System Management Bus) is based on the I2C protocol, and is mostly a subset of I2C protocols and signaling. Many I2C devices will work on an