Searched refs:VIDIOC_QUERYCTRL (Results 1 – 24 of 24) sorted by relevance
| /Linux-v5.4/Documentation/media/uapi/v4l/ |
| D | extended-controls.rst | 88 themselves than is possible with :ref:`VIDIOC_QUERYCTRL <VIDIOC_QUERYCTRL>`
89 the :ref:`VIDIOC_QUERY_EXT_CTRL <VIDIOC_QUERYCTRL>` ioctl was added. In
98 :ref:`VIDIOC_QUERYCTRL` to check this.
113 :ref:`VIDIOC_QUERYCTRL` in combination with the
122 while (0 == ioctl (fd, VIDIOC_QUERYCTRL, &qctrl)) {
128 ``V4L2_CTRL_FLAG_NEXT_CTRL`` flag. The ``VIDIOC_QUERYCTRL`` ioctl will
141 while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &qctrl)) {
159 ``VIDIOC_QUERYCTRL`` will fail when used in combination with
173 ``V4L2_CTRL_TYPE_CTRL_CLASS``. ``VIDIOC_QUERYCTRL`` will return the name
179 :ref:`VIDIOC_QUERYCTRL` documentation for more
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| D | control.rst | 317 :ref:`VIDIOC_QUERYCTRL` and
318 :ref:`VIDIOC_QUERYMENU <VIDIOC_QUERYCTRL>` ioctls, get and set a
321 ``VIDIOC_QUERYCTRL``, ``VIDIOC_G_CTRL`` and ``VIDIOC_S_CTRL`` when the
355 while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
366 perror("VIDIOC_QUERYCTRL");
406 if (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
418 perror("VIDIOC_QUERYCTRL");
425 if (0 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
437 perror("VIDIOC_QUERYCTRL");
454 if (-1 == ioctl(fd, VIDIOC_QUERYCTRL, &queryctrl)) {
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| D | vidioc-queryctrl.rst | 13 ioctls VIDIOC_QUERYCTRL, VIDIOC_QUERY_EXT_CTRL and VIDIOC_QUERYMENU
19 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
25 .. c:function:: int ioctl( int fd, int VIDIOC_QUERYCTRL, struct v4l2_queryctrl *argp )
26 :name: VIDIOC_QUERYCTRL
51 ``VIDIOC_QUERYCTRL`` ioctl with a pointer to this structure. The driver
55 It is possible to enumerate controls by calling ``VIDIOC_QUERYCTRL``
83 ``VIDIOC_QUERYCTRL``, except that the ``reserved`` array must be zeroed
388 cannot be queried using ``VIDIOC_QUERYCTRL``. Only
391 ``VIDIOC_QUERYCTRL``.
411 - This is not a control. When ``VIDIOC_QUERYCTRL`` is called with a
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| D | ext-ctrls-detect.rst | 27 :ref:`VIDIOC_QUERYCTRL` for this control will
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| D | vidioc-g-ctrl.rst | 94 to :ref:`VIDIOC_QUERYMENU <VIDIOC_QUERYCTRL>`).
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| D | ext-ctrls-jpeg.rst | 29 :ref:`VIDIOC_QUERYCTRL` for this control will
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| D | diff-v4l.rst | 279 :ref:`VIDIOC_QUERYCTRL`,
306 :ref:`VIDIOC_QUERYCTRL` ioctl. For general
389 :ref:`VIDIOC_QUERYCTRL`,
414 :ref:`VIDIOC_QUERYCTRL` ioctl reports if the
423 the :ref:`VIDIOC_QUERYCTRL` ioctl. For general
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| D | ext-ctrls-fm-rx.rst | 27 :ref:`VIDIOC_QUERYCTRL` for this control will
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| D | ext-ctrls-rf-tuner.rst | 42 :ref:`VIDIOC_QUERYCTRL` for this control will
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| D | ext-ctrls-fm-tx.rst | 29 :ref:`VIDIOC_QUERYCTRL` for this control will
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| D | vidioc-g-ext-ctrls.rst | 74 :ref:`VIDIOC_QUERYCTRL` first and use
81 by calling :ref:`VIDIOC_QUERY_EXT_CTRL <VIDIOC_QUERYCTRL>`.
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| D | hist-v4l2.rst | 97 the VIDIOC_QUERYCTRL handlers in the sample drivers.
877 :ref:`VIDIOC_QUERYCTRL`, new control types
1240 :ref:`VIDIOC_QUERY_EXT_CTRL <VIDIOC_QUERYCTRL>`.
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| D | ext-ctrls-camera.rst | 27 :ref:`VIDIOC_QUERYCTRL` for this control will
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| D | buffer.rst | 66 :c:func:`VIDIOC_QUERYCTRL` or :c:func:`VIDIOC_QUERY_EXT_CTRL` for such a
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| D | dev-decoder.rst | 245 via :c:func:`VIDIOC_QUERYCTRL`.
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| D | ext-ctrls-codec.rst | 38 :ref:`VIDIOC_QUERYCTRL` for this control will
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| /Linux-v5.4/Documentation/translations/zh_CN/video4linux/ |
| D | v4l2-framework.txt | 399 VIDIOC_QUERYCTRL
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| /Linux-v5.4/drivers/media/v4l2-core/ |
| D | v4l2-subdev.c | 338 case VIDIOC_QUERYCTRL: in subdev_do_ioctl()
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| D | v4l2-dev.c | 559 set_bit(_IOC_NR(VIDIOC_QUERYCTRL), valid_ioctls); in determine_valid_ioctls()
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| D | v4l2-ioctl.c | 2716 …IOCTL_INFO(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2…
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| /Linux-v5.4/include/uapi/linux/ |
| D | videodev2.h | 2438 #define VIDIOC_QUERYCTRL _IOWR('V', 36, struct v4l2_queryctrl) macro
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| /Linux-v5.4/Documentation/media/kapi/ |
| D | v4l2-subdev.rst | 293 ``VIDIOC_QUERYCTRL``,
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| D | v4l2-controls.rst | 428 present. Note that VIDIOC_QUERYCTRL always returns a step value of 1 for
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| /Linux-v5.4/drivers/video/fbdev/matrox/ |
| D | matroxfb_base.c | 1102 case VIDIOC_QUERYCTRL: in matroxfb_ioctl()
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