{"id":16303,"url":"https://patchwork.libcamera.org/api/1.1/patches/16303/?format=json","web_url":"https://patchwork.libcamera.org/patch/16303/","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":"<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=json","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=json","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":"","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 ;\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 ;\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; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1655852928;\n\tbh=6pV7nNbcDYEYbk5M+t+WrGYwbzWlut2/W0e0IYso5As=;\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:Cc:\n\tFrom;\n\tb=VxNhgxAo+16a+KD2PnsFRtQ6xMljCUMyaNFyW+U5HMtRRvZvrRDIvTJAdIolSOrwf\n\tJdLAp8+YwViol0oA84dXki/OwSMZ5UTH2Mmts/JEZaSSydcxbB2VJ5HeSDXH41l/Fy\n\tIt9nw3enf/ZpTbVaDzOAvg/uGOsn24jLwaBpsBNdUZhnhut7MQXG46/i8OHUMNlH1B\n\tIeEwDHUkWkD3g7iFTgiPGVi8oi1vMYj1elKphMfS777XfsOZ0xWs6lhfRXyJtXC/7K\n\tzGX0jzDQUvgEwGH+5GfzmGpTv1rPCZpd659DAYeBQEAOawaEhuqipl4JzpH18m74gS\n\tdu+4P9iCYLrXg==","v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1655852926;\n\tbh=6pV7nNbcDYEYbk5M+t+WrGYwbzWlut2/W0e0IYso5As=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=q54U/OcsZRzZ5SPDQjkpXoAkjmxDyp3pkSp2FNmH4pHfFqPpA8crZ8ghIWlIhqqYk\n\tYSbWkE/lwLOH64g1vurN6cB0bsWFaliFW+YJYOI9f92qk/mrCCUS6zuJWwqM+Ysnhn\n\tA4H+tU0/7ITWo0LCAmIcoGbPOIjHGI0XK/wS2kW4="],"Authentication-Results":"lancelot.ideasonboard.com; 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":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","From":"Laurent Pinchart via libcamera-devel\n\t","Reply-To":"Laurent Pinchart ","Cc":"Pavel Machek ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"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 \nSigned-off-by: Laurent Pinchart \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 ` 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"]}