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Searched refs:VIDIOC_QUERYCTRL (Results 1 – 25 of 26) sorted by relevance

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/linux/Documentation/userspace-api/media/v4l/
H A Dextended-controls.rst81 themselves than is possible with :ref:`VIDIOC_QUERYCTRL <VIDIOC_QUERYCTRL>`
82 the :ref:`VIDIOC_QUERY_EXT_CTRL <VIDIOC_QUERYCTRL>` ioctl was added. In
91 :ref:`VIDIOC_QUERYCTRL` to check this.
106 :ref:`VIDIOC_QUERYCTRL` in combination with the
115 while (0 == ioctl (fd, VIDIOC_QUERYCTRL, &qctrl)) {
121 ``V4L2_CTRL_FLAG_NEXT_CTRL`` flag. The ``VIDIOC_QUERYCTRL`` ioctl will
134 while (0 == ioctl(fd, VIDIOC_QUERYCTRL, &qctrl)) {
152 ``VIDIOC_QUERYCTRL`` will fail when used in combination with
166 ``V4L2_CTRL_TYPE_CTRL_CLASS``. ``VIDIOC_QUERYCTRL`` will return the name
172 :ref:`VIDIOC_QUERYCTRL` documentation for more
H A Dvidioc-queryctrl.rst7 ioctls VIDIOC_QUERYCTRL, VIDIOC_QUERY_EXT_CTRL and VIDIOC_QUERYMENU
13 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
18 ``int ioctl(int fd, int VIDIOC_QUERYCTRL, struct v4l2_queryctrl *argp)``
43 ``VIDIOC_QUERYCTRL`` ioctl with a pointer to this structure. The driver
47 It is possible to enumerate controls by calling ``VIDIOC_QUERYCTRL``
75 ``VIDIOC_QUERYCTRL``, except that the ``reserved`` array must be zeroed
374 cannot be queried using ``VIDIOC_QUERYCTRL``. Only
377 ``VIDIOC_QUERYCTRL``.
397 - This is not a control. When ``VIDIOC_QUERYCTRL`` is called with a
H A Dext-ctrls-detect.rst20 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Dext-ctrls-colorimetry.rst21 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Dvidioc-g-ctrl.rst85 to :ref:`VIDIOC_QUERYMENU <VIDIOC_QUERYCTRL>`).
H A Dext-ctrls-jpeg.rst22 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Ddiff-v4l.rst271 :ref:`VIDIOC_QUERYCTRL`,
296 :ref:`VIDIOC_QUERYCTRL` ioctl. For general
376 :ref:`VIDIOC_QUERYCTRL`,
399 :ref:`VIDIOC_QUERYCTRL` ioctl reports if the
408 the :ref:`VIDIOC_QUERYCTRL` ioctl. For general
H A Dext-ctrls-fm-rx.rst20 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Dext-ctrls-rf-tuner.rst35 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Dext-ctrls-fm-tx.rst22 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Dvidioc-g-ext-ctrls.rst66 :ref:`VIDIOC_QUERYCTRL` first and use
73 by calling :ref:`VIDIOC_QUERY_EXT_CTRL <VIDIOC_QUERYCTRL>`.
H A Dhist-v4l2.rst87 the VIDIOC_QUERYCTRL handlers in the sample drivers.
823 :ref:`VIDIOC_QUERYCTRL`, new control types
1154 :ref:`VIDIOC_QUERY_EXT_CTRL <VIDIOC_QUERYCTRL>`.
H A Ddev-stateless-decoder.rst67 :c:func:`VIDIOC_QUERYCTRL`.
H A Dext-ctrls-camera.rst20 :ref:`VIDIOC_QUERYCTRL` for this control will
H A Ddev-encoder.rst138 via :c:func:`VIDIOC_QUERYCTRL`.
H A Dbuffer.rst59 :c:func:`VIDIOC_QUERYCTRL` or :c:func:`VIDIOC_QUERY_EXT_CTRL` for such a
H A Ddev-decoder.rst252 via :c:func:`VIDIOC_QUERYCTRL`.
/linux/Documentation/translations/zh_CN/video4linux/
H A Dv4l2-framework.txt399 VIDIOC_QUERYCTRL
/linux/drivers/media/v4l2-core/
H A Dv4l2-dev.c576 __set_bit(_IOC_NR(VIDIOC_QUERYCTRL), valid_ioctls); in determine_valid_ioctls()
H A Dv4l2-subdev.c641 case VIDIOC_QUERYCTRL: in subdev_do_ioctl()
H A Dv4l2-ioctl.c2929 …IOCTL_INFO(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2…
/linux/include/uapi/linux/
H A Dvideodev2.h2723 #define VIDIOC_QUERYCTRL _IOWR('V', 36, struct v4l2_queryctrl) macro
/linux/Documentation/driver-api/media/
H A Dv4l2-subdev.rst375 ``VIDIOC_QUERYCTRL``,
H A Dv4l2-controls.rst437 present. Note that VIDIOC_QUERYCTRL always returns a step value of 1 for
/linux/drivers/video/fbdev/matrox/
H A Dmatroxfb_base.c1103 case VIDIOC_QUERYCTRL: in matroxfb_ioctl()

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