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{ "id": 3715, "url": "https://patchwork.libcamera.org/api/1.1/patches/3715/?format=api", "web_url": "https://patchwork.libcamera.org/patch/3715/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20200508100158.3437161-5-jacopo@jmondi.org>", "date": "2020-05-08T10:01:49", "name": "[libcamera-devel,v10,04/13] media: v4l2-ctrl: Document V4L2_CID_CAMERA_ORIENTATION", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "55fb867d48c667fced3043f83d1801192baa36d5", "submitter": { "id": 3, "url": "https://patchwork.libcamera.org/api/1.1/people/3/?format=api", "name": "Jacopo Mondi", "email": "jacopo@jmondi.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/3715/mbox/", "series": [ { "id": 888, "url": "https://patchwork.libcamera.org/api/1.1/series/888/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=888", "date": "2020-05-08T10:01:45", "name": "media: report camera properties", "version": 10, "mbox": "https://patchwork.libcamera.org/series/888/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/3715/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/3715/checks/", "tags": {}, "headers": { "Return-Path": "<jacopo@jmondi.org>", "Received": [ "from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net\n\t[217.70.183.199])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 652F3603E3\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 8 May 2020 11:59:10 +0200 (CEST)", "from localhost.localdomain (2-224-242-101.ip172.fastwebnet.it\n\t[2.224.242.101]) (Authenticated sender: jacopo@jmondi.org)\n\tby relay9-d.mail.gandi.net (Postfix) with ESMTPSA id 75175FF80B;\n\tFri, 8 May 2020 09:59:08 +0000 (UTC)" ], "X-Originating-IP": "2.224.242.101", "From": "Jacopo Mondi <jacopo@jmondi.org>", "To": "linux-media@vger.kernel.org (open list:MEDIA INPUT INFRASTRUCTURE\n\t(V4L/DVB)), libcamera-devel@lists.libcamera.org,\n\tMauro Carvalho Chehab <mchehab@kernel.org>,\n\tHans Verkuil <hverkuil-cisco@xs4all.nl>,\n\tSakari Ailus <sakari.ailus@linux.intel.com>,\n\tLaurent Pinchart <laurent.pinchart@ideasonboard.com>", "Cc": "Jacopo Mondi <jacopo@jmondi.org>,\n\ttfiga@google.com,\n\tpavel@ucw.cz", "Date": "Fri, 8 May 2020 12:01:49 +0200", "Message-Id": "<20200508100158.3437161-5-jacopo@jmondi.org>", "X-Mailer": "git-send-email 2.26.1", "In-Reply-To": "<20200508100158.3437161-1-jacopo@jmondi.org>", "References": "<20200508100158.3437161-1-jacopo@jmondi.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v10 04/13] media: v4l2-ctrl: Document\n\tV4L2_CID_CAMERA_ORIENTATION", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "X-List-Received-Date": "Fri, 08 May 2020 09:59:10 -0000" }, "content": "Add documentation for the V4L2_CID_CAMERA_ORIENTATION camera\ncontrol. The newly added read-only control reports the camera device\norientation relative to the usage orientation of the system the camera\nis installed on.\n\nSigned-off-by: Jacopo Mondi <jacopo@jmondi.org>\n---\n .../media/v4l/ext-ctrls-camera.rst | 30 +++++++++++++++++++\n 1 file changed, 30 insertions(+)", "diff": "diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst\nindex e39f84d2447f8..01e104bab6b3d 100644\n--- a/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst\n+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-camera.rst\n@@ -510,6 +510,36 @@ enum v4l2_scene_mode -\n value down. A value of zero stops the motion if one is in progress\n and has no effect otherwise.\n \n+``V4L2_CID_CAMERA_ORIENTATION (integer)``\n+ This read-only control describes the camera orientation by reporting\n+ its mounting position on the device where the camera is installed. The\n+ control value is constant and not modifiable by software. This control is\n+ particularly meaningful for devices which have a well defined orientation,\n+ such as phones, laptops and portable devices since the control is expressed\n+ as a position relative to the device's intended usage orientation.\n+ For example, a camera installed on the user-facing side of a phone,\n+ a tablet or a laptop device is said to be have ``V4L2_ORIENTATION_FRONT``\n+ orientation, while a camera installed on the opposite side of the front one\n+ is said to be have ``V4L2_ORIENTATION_BACK`` orientation. Camera sensors not\n+ directly attached to the device, or attached in a way that allows them to\n+ move freely, such as webcams and digital cameras, are said to have the\n+ ``V4L2_ORIENTATION_EXTERNAL`` orientation.\n+\n+\n+\n+.. flat-table::\n+ :header-rows: 0\n+ :stub-columns: 0\n+\n+ * - ``V4L2_ORIENTATION_FRONT``\n+ - The camera is oriented towards the user facing side of the device.\n+ * - ``V4L2_ORIENTATION_BACK``\n+ - The camera is oriented towards the back facing side of the device.\n+ * - ``V4L2_ORIENTATION_EXTERNAL``\n+ - The camera is not directly attached to the device and is freely movable.\n+\n+\n+\n .. [#f1]\n This control may be changed to a menu control in the future, if more\n options are required.\n", "prefixes": [ "libcamera-devel", "v10", "04/13" ] }