From patchwork Wed Aug 3 07:58:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Erling Ljunggren X-Patchwork-Id: 85235 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1oJ9Gf-001kmE-QS; Wed, 03 Aug 2022 07:58:14 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237355AbiHCH6L (ORCPT + 1 other); Wed, 3 Aug 2022 03:58:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237318AbiHCH6J (ORCPT ); Wed, 3 Aug 2022 03:58:09 -0400 Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7BF3F2A43C for ; Wed, 3 Aug 2022 00:58:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2742; q=dns/txt; s=iport; t=1659513488; x=1660723088; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LKY9HUBRz+tuJSsdYJUDPSCHucP72wGgTwKl3py/KGU=; b=PlcyDnlze2kCws9nTBP+15MIOqcfnjnbkM+SjdNVsn0vb1U+jVYRxLDD zUSQ7FNb0Fo4nxqOBJxkBxaZyzcawv6sYZVic+xIPXFM0HL+DwFxnglHL P075NQljRyMB1vTcj1AMCMRZFMKOH7jaWwl5SShk7gpCkHRM14x/WgVEz w=; X-IronPort-AV: E=Sophos;i="5.93,213,1654560000"; d="scan'208";a="3360424" Received: from aer-iport-nat.cisco.com (HELO aer-core-1.cisco.com) ([173.38.203.22]) by aer-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 03 Aug 2022 07:58:06 +0000 Received: from office-260.rd.cisco.com ([10.47.77.162]) by aer-core-1.cisco.com (8.15.2/8.15.2) with ESMTP id 2737w5SA024084; Wed, 3 Aug 2022 07:58:06 GMT From: Erling Ljunggren To: linux-media@vger.kernel.org Cc: Erling Ljunggren Subject: [PATCH v2 2/5] media: docs: Add V4L2_CAP_EDID_MEMORY Date: Wed, 3 Aug 2022 09:58:47 +0200 Message-Id: <20220803075850.1196988-3-hljunggr@cisco.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220803075850.1196988-1-hljunggr@cisco.com> References: <20220803075850.1196988-1-hljunggr@cisco.com> MIME-Version: 1.0 X-Outbound-SMTP-Client: 10.47.77.162, [10.47.77.162] X-Outbound-Node: aer-core-1.cisco.com X-Spam-Status: No, score=-10.2 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIMWL_WL_MED,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, SPF_HELO_PASS,SPF_NONE,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -10.0 (----------) X-LSpam-Report: No, score=-10.0 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_MED=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,USER_IN_DEF_DKIM_WL=-7.5 autolearn=ham autolearn_force=no Add documentation for the new edid eeprom capability. Signed-off-by: Erling Ljunggren --- Documentation/userspace-api/media/v4l/biblio.rst | 11 +++++++++++ .../userspace-api/media/v4l/vidioc-querycap.rst | 7 +++++++ .../userspace-api/media/videodev2.h.rst.exceptions | 1 + 3 files changed, 19 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/biblio.rst b/Documentation/userspace-api/media/v4l/biblio.rst index 9cd18c153d19..5cbe41877a63 100644 --- a/Documentation/userspace-api/media/v4l/biblio.rst +++ b/Documentation/userspace-api/media/v4l/biblio.rst @@ -334,6 +334,17 @@ VESA DMT :author: Video Electronics Standards Association (http://www.vesa.org) +.. _vesaeddc: + +E-DDC +==== + + +:title: VESA Enhanced Display Data Channel (E-DDC) Standard +:subtitle: Version 1.3 + +:author: Video Electronics Standards Association (http://www.vesa.org) + .. _vesaedid: EDID diff --git a/Documentation/userspace-api/media/v4l/vidioc-querycap.rst b/Documentation/userspace-api/media/v4l/vidioc-querycap.rst index 63e23f6f95ee..bdb530bd6816 100644 --- a/Documentation/userspace-api/media/v4l/vidioc-querycap.rst +++ b/Documentation/userspace-api/media/v4l/vidioc-querycap.rst @@ -173,6 +173,13 @@ specification the ioctl returns an ``EINVAL`` error code. interface. A video overlay device typically stores captured images directly in the video memory of a graphics card, with hardware clipping and scaling. + * - ``V4L2_CAP_EDID_MEMORY`` + - 0x00000008 + - The device is a standalone EDID memory device. This is typically an eeprom + that supports the VESA Enhanced Display Data Channel Standard. + + While an eeprom is the most common implementation, it can be something else + as well, such as a microcontroller. Hence the generic name 'memory'. * - ``V4L2_CAP_VBI_CAPTURE`` - 0x00000010 - The device supports the :ref:`Raw VBI Capture ` diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions index 9cbb7a0c354a..12fa290828e7 100644 --- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions +++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions @@ -185,6 +185,7 @@ replace define V4L2_CAP_META_OUTPUT device-capabilities replace define V4L2_CAP_DEVICE_CAPS device-capabilities replace define V4L2_CAP_TOUCH device-capabilities replace define V4L2_CAP_IO_MC device-capabilities +replace define V4L2_CAP_EDID_MEMORY device-capabilities # V4L2 pix flags replace define V4L2_PIX_FMT_PRIV_MAGIC :c:type:`v4l2_pix_format`