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{ "id": 1959, "url": "https://patchwork.libcamera.org/api/covers/1959/?format=api", "web_url": "https://patchwork.libcamera.org/cover/1959/", "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": "<20190912200330.19004-1-laurent.pinchart@ideasonboard.com>", "date": "2019-09-12T20:03:26", "name": "[libcamera-devel,0/4] Fix udev device enumerator with V4L2 M2M devices", "submitter": { "id": 2, "url": "https://patchwork.libcamera.org/api/people/2/?format=api", "name": "Laurent Pinchart", "email": "laurent.pinchart@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/1959/mbox/", "series": [ { "id": 487, "url": "https://patchwork.libcamera.org/api/series/487/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=487", "date": "2019-09-12T20:03:26", "name": "Fix udev device enumerator with V4L2 M2M devices", "version": 1, "mbox": "https://patchwork.libcamera.org/series/487/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/1959/comments/", "headers": { "Return-Path": "<laurent.pinchart@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 8A71B600E9\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 12 Sep 2019 22:03:44 +0200 (CEST)", "from pendragon.lan (bl10-204-24.dsl.telepac.pt [85.243.204.24])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 326DD33A;\n\tThu, 12 Sep 2019 22:03:42 +0200 (CEST)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1568318624;\n\tbh=EwBRD/4/SNC/RQNwjRcU85xxmGiEf1NXGbYpjw9cIVE=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=X5SjGmnhRH7R/vjBh4dNNMGq4dsvc5OuUOR8jpqcSGFkBLOhP8zUbb+ghBBtsgNhE\n\tCLHxS+4cLvCNaJAgxFCgz+jmLG5m5XcQMLAJqHOQHlERuPV2f2EY/eYjV3pFT5UUfS\n\tXQQmI9xYRI9VpmbiyVo2WHtnwx8V9+Jn26A5mOCY=", "From": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Thu, 12 Sep 2019 23:03:26 +0300", "Message-Id": "<20190912200330.19004-1-laurent.pinchart@ideasonboard.com>", "X-Mailer": "git-send-email 2.21.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH 0/4] Fix udev device enumerator with V4L2\n\tM2M devices", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.23", "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": "Thu, 12 Sep 2019 20:03:44 -0000" }, "content": "Hello,\n\nThe latest rework of the udev device enumerator to support delayed\ndevice initialisation broke V4L2 M2M support, as it assumes that a\ndevice node belongs to a single entity. As I'm guilty of having missed\nthat during review, here's a patch series to fix it.\n\nThe first three patches are drive-by cleanups, while the real fix is in\npatch 4/4.\n\nLaurent Pinchart (4):\n libcamera: device_enumerator: Move lookupDeviceNode() to child classes\n libcamera: device_enumerator_udev: Delay device node lookup\n libcamera: device_enumerator_udev: Avoid double list lookup\n libcamera: device_enumerator_udev: Support entities sharing device\n nodes\n\n src/libcamera/device_enumerator.cpp | 13 --\n src/libcamera/device_enumerator_sysfs.cpp | 11 ++\n src/libcamera/device_enumerator_udev.cpp | 116 ++++++++++++------\n src/libcamera/include/device_enumerator.h | 2 -\n .../include/device_enumerator_sysfs.h | 2 +-\n .../include/device_enumerator_udev.h | 27 +++-\n 6 files changed, 113 insertions(+), 58 deletions(-)" }