{"id":3715,"url":"https://patchwork.libcamera.org/api/1.1/patches/3715/?format=json","web_url":"https://patchwork.libcamera.org/patch/3715/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","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media: v4l2-ctrl: Document V4L2_CID_CAMERA_ORIENTATION","commit_ref":null,"pull_url":null,"state":"superseded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=json","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=json","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":"","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 ;\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 ","To":"linux-media@vger.kernel.org (open list:MEDIA INPUT INFRASTRUCTURE\n\t(V4L/DVB)), libcamera-devel@lists.libcamera.org,\n\tMauro Carvalho Chehab ,\n\tHans Verkuil ,\n\tSakari Ailus ,\n\tLaurent Pinchart ","Cc":"Jacopo Mondi ,\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":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","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 \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"]}