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    "msgid": "<20221202124005.3643-1-naush@raspberrypi.com>",
    "date": "2022-12-02T12:40:03",
    "name": "[libcamera-devel,v2,0/2] Add read-only flag to ControlInfo",
    "submitter": {
        "id": 34,
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        "name": "Naushir Patuck",
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            "date": "2022-12-02T12:40:03",
            "name": "Add read-only flag to ControlInfo",
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Fri,  2 Dec 2022 12:40:03 +0000",
        "Message-Id": "<20221202124005.3643-1-naush@raspberrypi.com>",
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        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v2 0/2] Add read-only flag to ControlInfo",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
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        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "From": "Naushir Patuck via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Naushir Patuck <naush@raspberrypi.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Hi,\n\nThis small patch series adds a read-only flag to ControlInfo.  This is used\nto test if a control, in particular V4L2_CID_HBLANK, can be written to by\nuserland.  It replaces the slightly fragile workaround we have right now where\nwe test if the min and max values of a control are the same to determine if\na control is read-only.\n\nI've only modified the one ControlInfo constructor signature used by the\nV4L2Device class to allow this flag to be set, as setting it for a non-v4l2\ncontrol probably does not make sense at this point.  If folks think this is\nincorrect, please let me know.\n\nRegards,\nNaush\n\nNaushir Patuck (2):\n  libcamera: controls: Add read-only flag to ControlInfo\n  libcamera:camera_sensor, ipa: raspberrypi: Test readOnly() for HBLANK\n    control\n\n include/libcamera/controls.h        |  5 ++++-\n src/ipa/raspberrypi/raspberrypi.cpp | 12 +-----------\n src/libcamera/camera_sensor.cpp     | 14 ++------------\n src/libcamera/controls.cpp          | 17 +++++++++++++----\n src/libcamera/v4l2_device.cpp       | 12 ++++++++----\n 5 files changed, 28 insertions(+), 32 deletions(-)"
}