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{ "id": 17895, "url": "https://patchwork.libcamera.org/api/patches/17895/?format=api", "web_url": "https://patchwork.libcamera.org/patch/17895/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/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": "<20221124121220.47000-10-jacopo@jmondi.org>", "date": "2022-11-24T12:12:20", "name": "[libcamera-devel,9/9] documentation: sensor_drivers: Document H/V flip", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "f4a394514680ef8340644812df20b0e552b2fcab", "submitter": { "id": 3, "url": "https://patchwork.libcamera.org/api/people/3/?format=api", "name": "Jacopo Mondi", "email": "jacopo@jmondi.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/17895/mbox/", "series": [ { "id": 3638, "url": "https://patchwork.libcamera.org/api/series/3638/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3638", "date": "2022-11-24T12:12:11", "name": "libcamera: camera_sensor: Centralize flips handling", "version": 1, "mbox": "https://patchwork.libcamera.org/series/3638/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/17895/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/17895/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 49E03BDE6B\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 24 Nov 2022 12:12:39 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 08CED6331E;\n\tThu, 24 Nov 2022 13:12:39 +0100 (CET)", "from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net\n\t[217.70.183.194])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id B306D6331A\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 24 Nov 2022 13:12:35 +0100 (CET)", "(Authenticated sender: jacopo@jmondi.org)\n\tby mail.gandi.net (Postfix) with ESMTPSA id DECDC40002;\n\tThu, 24 Nov 2022 12:12:34 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1669291959;\n\tbh=1Y9XURxrGeqSini5H73FcuTfYF7+giYbLY/41RfhXVs=;\n\th=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:\n\tFrom;\n\tb=0WDXC+s+md/+5rzgDMmvuy2n0UvpHsg0kNCr3ubYEwoAziAE9FQnQJKmD/LjTa8Hg\n\tLOUPb/hQ3iQKFLqxlnhnHldoFnFBJoBRjBlEkBYDRDARo8R5QaLD1I1rRouUl/KCR4\n\tJitfGgIxwxpi11mMIVaNbmG7e72OY313HzzNFUpJXJ6hlNaOrHFUjP0NGeLzLk0WSQ\n\tDYHww7plVxTUYxDsL8xsG4OoFgNiNbQSNZRC9InUrVfMcpp0L9h0c86e97SckLxl7q\n\t87GsnDHK0GU9aOKycACBRJKgUx251E+P78bKnkU5WtXMEFPbBXDBnlmXh9nnEcTOxt\n\tLm3/NbV9IT9fQ==", "To": "libcamera-devel@lists.libcamera.org", "Date": "Thu, 24 Nov 2022 13:12:20 +0100", "Message-Id": "<20221124121220.47000-10-jacopo@jmondi.org>", "X-Mailer": "git-send-email 2.38.1", "In-Reply-To": "<20221124121220.47000-1-jacopo@jmondi.org>", "References": "<20221124121220.47000-1-jacopo@jmondi.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH 9/9] documentation: sensor_drivers:\n\tDocument H/V flip", "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>", "From": "Jacopo Mondi via libcamera-devel <libcamera-devel@lists.libcamera.org>", "Reply-To": "Jacopo Mondi <jacopo@jmondi.org>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Briefly document the optional requirement support for H/V flip controls.\n\nSigned-off-by: Jacopo Mondi <jacopo@jmondi.org>\n---\n Documentation/sensor_driver_requirements.rst | 13 +++++++++++++\n 1 file changed, 13 insertions(+)", "diff": "diff --git a/Documentation/sensor_driver_requirements.rst b/Documentation/sensor_driver_requirements.rst\nindex b0854be3328a..e9f998ca8d31 100644\n--- a/Documentation/sensor_driver_requirements.rst\n+++ b/Documentation/sensor_driver_requirements.rst\n@@ -55,6 +55,19 @@ The sensor driver should support the following V4L2 controls:\n \n The controls are used to register the camera location and rotation.\n \n+In order to support rotating the image according to the above registered\n+properties the sensor driver should support\n+\n+* `V4L2_CID_HFLIP`_\n+* `V4L2_CID_VFLIP`_\n+\n+.. _V4L2_CID_HFLIP: https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html\n+.. _V4L2_CID_VFLIP: https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html\n+\n+and have them writable from userspace. In case of a RAW Bayer sensors, drivers\n+should correctly report if vertical/horizontal flips modify the Bayer pattern\n+ordering by reporting the `V4L2_CTRL_FLAG_MODIFY_LAYOUT` control flag.\n+\n The sensor driver should implement support for the V4L2 Selection API,\n specifically it should implement support for the\n `VIDIOC_SUBDEV_G_SELECTION`_ ioctl with support for the following selection\n", "prefixes": [ "libcamera-devel", "9/9" ] }