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{ "id": 2485, "url": "https://patchwork.libcamera.org/api/covers/2485/?format=api", "web_url": "https://patchwork.libcamera.org/cover/2485/", "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": "<20200103054120.30979-1-paul.elder@ideasonboard.com>", "date": "2020-01-03T05:41:16", "name": "[libcamera-devel,v5,0/4] V4L2 compatibility layer", "submitter": { "id": 17, "url": "https://patchwork.libcamera.org/api/people/17/?format=api", "name": "Paul Elder", "email": "paul.elder@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/2485/mbox/", "series": [ { "id": 598, "url": "https://patchwork.libcamera.org/api/series/598/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=598", "date": "2020-01-03T05:41:16", "name": "V4L2 compatibility layer", "version": 5, "mbox": "https://patchwork.libcamera.org/series/598/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/2485/comments/", "headers": { "Return-Path": "<paul.elder@ideasonboard.com>", "Received": [ "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 0821C60462\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 3 Jan 2020 06:41:28 +0100 (CET)", "from neptunite.amanokami.net (unknown [96.44.9.94])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 4008430F;\n\tFri, 3 Jan 2020 06:41:27 +0100 (CET)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1578030087;\n\tbh=o46u+7gjgGb1CB3HQiSgrzH4yq5NdJ5qmK8KAIDIAQY=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=qYadWVyaTd1Z9w2ZSfRYLAfBRQ/qA0sv5E6Be91JVi28ZFKPm5SUn1KvNJOLznTVs\n\twfNDGx86mer75jHUR1GwBh+cQNh1cBiwgW1NI4Wivg94SW2j7uFOujPT5C7GbNo0bs\n\ty77S1DVUzfGYyDvLkb7/Abz009i4nIDuErFRjv1o=", "From": "Paul Elder <paul.elder@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Fri, 3 Jan 2020 00:41:16 -0500", "Message-Id": "<20200103054120.30979-1-paul.elder@ideasonboard.com>", "X-Mailer": "git-send-email 2.24.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v5 0/4] V4L2 compatibility layer", "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, 03 Jan 2020 05:41:28 -0000" }, "content": "Implement the initial version of the V4L2 compatibility layer.\n\nPatch 2/4 implements the infrastructure for the pipeline handler to\noptionally assign a device number to each camera that it adds to the\ncamera manager, to allow the V4L2 comptibility layer to map device nodes\nto libcamera cameras. Patch 3/4 implements the mapping assignment for the\nuvcvideo pipeline handler.\n\nPatch 4/4 is the complete implementation of the V4L2 compatibility\nlayer.\n\nIn v5, we now depend on the following two patches:\n3/4 - libcamera: pipeline: uvcvideo: Fix crash when default entity is\n not found\n4/4 - libcamera: object: Support reference arguments in invokeMethod()\n\nPaul Elder (4):\n libcamera: v4l2_device, v4l2_videodevice: call open system call\n directly\n libcamera: camera_manager, pipeline_handler: allow retrieving cameras\n by device numbers\n libcamera: pipeline_handler: uvcvideo: register all Cameras along with\n a devnum\n v4l2: v4l2_compat: Add V4L2 compatibility layer\n\n include/libcamera/camera_manager.h | 6 +-\n meson_options.txt | 5 +\n src/libcamera/camera_manager.cpp | 61 ++-\n src/libcamera/include/pipeline_handler.h | 3 +-\n src/libcamera/pipeline/uvcvideo.cpp | 6 +-\n src/libcamera/pipeline_handler.cpp | 13 +-\n src/libcamera/v4l2_device.cpp | 3 +-\n src/libcamera/v4l2_videodevice.cpp | 4 +-\n src/meson.build | 4 +\n src/v4l2/meson.build | 31 ++\n src/v4l2/v4l2_camera.cpp | 228 ++++++++\n src/v4l2/v4l2_camera.h | 85 +++\n src/v4l2/v4l2_camera_proxy.cpp | 654 +++++++++++++++++++++++\n src/v4l2/v4l2_camera_proxy.h | 82 +++\n src/v4l2/v4l2_compat.cpp | 80 +++\n src/v4l2/v4l2_compat_manager.cpp | 257 +++++++++\n src/v4l2/v4l2_compat_manager.h | 77 +++\n 17 files changed, 1582 insertions(+), 17 deletions(-)\n create mode 100644 src/v4l2/meson.build\n create mode 100644 src/v4l2/v4l2_camera.cpp\n create mode 100644 src/v4l2/v4l2_camera.h\n create mode 100644 src/v4l2/v4l2_camera_proxy.cpp\n create mode 100644 src/v4l2/v4l2_camera_proxy.h\n create mode 100644 src/v4l2/v4l2_compat.cpp\n create mode 100644 src/v4l2/v4l2_compat_manager.cpp\n create mode 100644 src/v4l2/v4l2_compat_manager.h" }