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{ "id": 16303, "url": "https://patchwork.libcamera.org/api/1.1/patches/16303/?format=api", "web_url": "https://patchwork.libcamera.org/patch/16303/", "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": "<20220621230826.23906-2-laurent.pinchart@ideasonboard.com>", "date": "2022-06-21T23:08:26", "name": "[libcamera-devel,2/2] README: Add short testing instructions with cam", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "a79f263ec1045a507867c59b6f9379586c5b6a22", "submitter": { "id": 2, "url": "https://patchwork.libcamera.org/api/1.1/people/2/?format=api", "name": "Laurent Pinchart", "email": "laurent.pinchart@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/16303/mbox/", "series": [ { "id": 3199, "url": "https://patchwork.libcamera.org/api/1.1/series/3199/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3199", "date": "2022-06-21T23:08:25", "name": "[libcamera-devel,1/2] Documentation: Fix length of title underlines", "version": 1, "mbox": "https://patchwork.libcamera.org/series/3199/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/16303/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/16303/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 38036BD808\n\tfor <parsemail@patchwork.libcamera.org>;\n\tTue, 21 Jun 2022 23:08:50 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 31D786563E;\n\tWed, 22 Jun 2022 01:08:48 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 03D1C65631\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 22 Jun 2022 01:08:47 +0200 (CEST)", "from pendragon.lan (62-78-145-57.bb.dnainternet.fi [62.78.145.57])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 9297659D;\n\tWed, 22 Jun 2022 01:08:46 +0200 (CEST)" ], "DKIM-Signature": [ "v=1; 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dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"q54U/Ocs\"; dkim-atps=neutral", "To": "libcamera-devel@lists.libcamera.org", "Date": "Wed, 22 Jun 2022 02:08:26 +0300", "Message-Id": "<20220621230826.23906-2-laurent.pinchart@ideasonboard.com>", "X-Mailer": "git-send-email 2.35.1", "In-Reply-To": "<20220621230826.23906-1-laurent.pinchart@ideasonboard.com>", "References": "<20220621230826.23906-1-laurent.pinchart@ideasonboard.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH 2/2] README: Add short testing\n\tinstructions with cam", "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": "Laurent Pinchart via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>", "Cc": "Pavel Machek <pavel@ucw.cz>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "The README.rst file contains the getting started instructions, but lacks\na simple way to test libcamera. Add a short section about basic cam\nusage.\n\nSuggested-by: Pavel Machek <pavel@ucw.cz>\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n Documentation/environment_variables.rst | 2 ++\n README.rst | 15 +++++++++++++++\n 2 files changed, 17 insertions(+)", "diff": "diff --git a/Documentation/environment_variables.rst b/Documentation/environment_variables.rst\nindex f092cbbd29c5..dcfdb1a33a32 100644\n--- a/Documentation/environment_variables.rst\n+++ b/Documentation/environment_variables.rst\n@@ -86,6 +86,8 @@ global environment:\n :~$ export LIBCAMERA_LOG_LEVELS='Camera:DEBUG,V4L2:DEBUG'\n :~$ cam --list\n \n+.. _log levels:\n+\n Log levels\n ~~~~~~~~~~\n \ndiff --git a/README.rst b/README.rst\nindex f81d6e2e7867..578aa19f0f54 100644\n--- a/README.rst\n+++ b/README.rst\n@@ -101,6 +101,21 @@ for android: [optional]\n for lc-compliance: [optional]\n libevent-dev\n \n+Basic testing with cam utility\n+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n+\n+The ``cam`` utility can be used for basic testing. You can list the cameras\n+detected on the system with ``cam -l``, and capture ten frames from the first\n+camera and save them to disk with ``cam -c 1 --capture=10 --file``. See\n+``cam -h`` for more information about the ``cam`` tool.\n+\n+In case of problems, a detailed debug log can be obtained from libcamera by\n+setting the :ref:`LIBCAMERA_LOG_LEVELS <log levels>` environment variable:\n+\n+.. code::\n+\n+ :~$ LIBCAMERA_LOG_LEVELS=*:DEBUG cam -l\n+\n Using GStreamer plugin\n ~~~~~~~~~~~~~~~~~~~~~~\n \n", "prefixes": [ "libcamera-devel", "2/2" ] }