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{ "id": 4025, "url": "https://patchwork.libcamera.org/api/1.1/covers/4025/?format=api", "web_url": "https://patchwork.libcamera.org/cover/4025/", "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": "<20200611171528.9381-1-email@uajain.com>", "date": "2020-06-11T17:16:01", "name": "[libcamera-devel,v4,0/6] Introduce UVC hotplugging support", "submitter": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/people/1/?format=api", "name": "Umang Jain", "email": "email@uajain.com" }, "mbox": "https://patchwork.libcamera.org/cover/4025/mbox/", "series": [ { "id": 993, "url": "https://patchwork.libcamera.org/api/1.1/series/993/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=993", "date": "2020-06-11T17:16:02", "name": "Introduce UVC hotplugging support", "version": 4, "mbox": "https://patchwork.libcamera.org/series/993/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/4025/comments/", "headers": { "Return-Path": "<bounces+15657259-5c31-libcamera-devel=lists.libcamera.org@em7280.uajain.com>", "Received": [ "from o1.f.az.sendgrid.net (o1.f.az.sendgrid.net [208.117.55.132])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 0118B61167\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 11 Jun 2020 19:16:03 +0200 (CEST)", "by filter0088p3las1.sendgrid.net with SMTP id\n\tfilter0088p3las1-13542-5EE266D1-A5\n\t2020-06-11 17:16:01.707854497 +0000 UTC m=+255989.231988590", "from mail.uajain.com (unknown)\n\tby ismtpd0004p1hnd1.sendgrid.net (SG) with ESMTP\n\tid -PPsXPefR9Cir886jekLcg Thu, 11 Jun 2020 17:16:01.246 +0000 (UTC)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=uajain.com\n\theader.i=@uajain.com header.b=\"UqELhGkx\"; \n\tdkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=uajain.com;\n\th=from:subject:mime-version:to:cc:content-type:\n\tcontent-transfer-encoding;\n\ts=s1; bh=KpwMp5/5+NFG3IoSOal254txRjs2HbGpoY5aTpzStE8=;\n\tb=UqELhGkxtiP9O9JDxpg9M5nQuHqKEhzZrQs7zGKJ2TsdXaFfiEuW5HZRhwXEM1J19Xkt\n\tbsaIcyHjPLENcuDXa1Zdkx7zDfOL+fV6AOwscWKMBoqeODXdVKTSImjjvhYVuIgw9BLRrt\n\tglAQ6rpIvhawK7gP4LdvMrqwtGs3Jr8Tk=", "From": "Umang Jain <email@uajain.com>", "Date": "Thu, 11 Jun 2020 17:16:01 +0000 (UTC)", "Message-Id": "<20200611171528.9381-1-email@uajain.com>", "Mime-Version": "1.0", "X-SG-EID": "1Q40EQ7YGir8a9gjSIAdTjhngY657NMk9ckeo4dbHZDiOpywc/L3L9rFqlwE4KPcIQ89AvAiYjJmgYkN1WcnPYQppZwiX4S4RsTicx0So7YkMZKLspPftWN5pcxNFLl+kkz4epii5iycdlniF/7Su2sHkTMtCBXDLolmWd+c5t2MTflULocWZH/pzIV4XkQ0eYrMXq4YF5j+3+rK0KLymJTVQR4mV0AuAj3yW++axDGa+d6T/JjStJ0Kt4OzZD0Q", "To": "laurent.pinchart@ideasonboard.com, libcamera-devel@lists.libcamera.org", "Content-Type": "text/plain; charset=us-ascii", "Content-Transfer-Encoding": "7bit", "Subject": "[libcamera-devel] [PATCH v4 0/6] Introduce UVC hotplugging support", "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": "Thu, 11 Jun 2020 17:16:04 -0000" }, "content": "Hi all,\n\nAround round of UVC hotplug support I have been working on.\n\nChangelog:\n \nv3->v4:\n - Introduce one additional commit to eliminate Pipehandlers' vector\n from CameraManager. It was leaving behind a leaked reference which\n was causing unclean unbind->bind operation (due to dangling dirs)\n for the hotplug unit test to run.\n - Simplify hotplug unit test with use of std::ofstream.\n - Change CameraManager::Private::addCamera() signature to accept\n Camera arg as pass-by-value instead of pass-by-reference.\n - qcam: Finalize HotplugEvent naming with ::HotPlug and ::HotUnplug\n - Few small improvements in commit messages and rebase. \n\n\nUmang Jain (6):\n libcamera: CameraManager: Drop the vector of created PipelineHandlers\n libcamera: camera_manager: Refactor pipelines creation into separate\n function\n libcamera: device_enumerator: Emit a signal when a new devices are\n added\n libcamera: camera_manager: Introduce signals when a camera is\n added/removed\n qcam: main_window: Introduce initial hotplug support\n tests: Introduce hotplug hot-unplug unit test\n\n include/libcamera/camera_manager.h | 6 +-\n .../libcamera/internal/device_enumerator.h | 4 +\n src/libcamera/camera_manager.cpp | 60 +++++++--\n src/libcamera/device_enumerator.cpp | 13 ++\n src/libcamera/pipeline_handler.cpp | 2 +-\n src/qcam/main_window.cpp | 76 +++++++++++\n src/qcam/main_window.h | 6 +\n test/hotplug-cameras.cpp | 124 ++++++++++++++++++\n test/meson.build | 1 +\n 9 files changed, 277 insertions(+), 15 deletions(-)\n create mode 100644 test/hotplug-cameras.cpp" }