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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-30 13:42:05 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-30 13:42:05 -0700 |
commit | 063d1942247668eb0bb800aef5afbbef337344be (patch) | |
tree | 3be8d6edaa586580d169da63c6c0c17ce1a86b25 /Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst | |
parent | 47acac8cae28b36668bf89400c56b7fdebca3e75 (diff) | |
parent | 2632e7b618a7730969f9782593c29ca53553aa22 (diff) |
Merge tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- New sensor driver: imx219
- Support for some new pixelformats
- Support for Sun8i SoC
- Added more codecs to meson vdec driver
- Prepare for removing the legacy usbvision driver by moving it to
staging. This driver has issues and use legacy core APIs. If nobody
steps up to address those, it is time for its retirement.
- Several cleanups and improvements on drivers, with the addition of
new supported boards
* tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (236 commits)
media: venus: firmware: Ignore secure call error on first resume
media: mtk-vpu: load vpu firmware from the new location
media: i2c: video-i2c: fix build errors due to 'imply hwmon'
media: MAINTAINERS: add myself to co-maintain Hantro G1/G2 for i.MX8MQ
media: hantro: add initial i.MX8MQ support
media: dt-bindings: Document i.MX8MQ VPU bindings
media: vivid: fix incorrect PA assignment to HDMI outputs
media: hantro: Add linux-rockchip mailing list to MAINTAINERS
media: cedrus: h264: Fix 4K decoding on H6
media: siano: Use scnprintf() for avoiding potential buffer overflow
media: rc: Use scnprintf() for avoiding potential buffer overflow
media: allegro: create new struct for channel parameters
media: allegro: move mail definitions to separate file
media: allegro: pass buffers through firmware
media: allegro: verify source and destination buffer in VCU response
media: allegro: handle dependency of bitrate and bitrate_peak
media: allegro: read bitrate mode directly from control
media: allegro: make QP configurable
media: allegro: make frame rate configurable
media: allegro: skip filler data if possible
...
Diffstat (limited to 'Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst')
-rw-r--r-- | Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst | 45 |
1 files changed, 18 insertions, 27 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst b/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst index 271cac18afbb..cdb2a2a512d6 100644 --- a/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst +++ b/Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst @@ -136,15 +136,13 @@ still cause this situation. .. flat-table:: struct v4l2_ext_control :header-rows: 0 :stub-columns: 0 - :widths: 1 1 1 2 + :widths: 1 1 2 * - __u32 - ``id`` - - - Identifies the control, set by the application. * - __u32 - ``size`` - - - The total size in bytes of the payload of this control. This is normally 0, but for pointer controls this should be set to the size of the memory containing the payload, or that will receive @@ -161,55 +159,48 @@ still cause this situation. *length* of the string may well be much smaller. * - __u32 - ``reserved2``\ [1] - - - Reserved for future extensions. Drivers and applications must set the array to zero. - * - union + * - union { - (anonymous) - * - - - __s32 + * - __s32 - ``value`` - New value or current value. Valid if this control is not of type ``V4L2_CTRL_TYPE_INTEGER64`` and ``V4L2_CTRL_FLAG_HAS_PAYLOAD`` is not set. - * - - - __s64 + * - __s64 - ``value64`` - New value or current value. Valid if this control is of type ``V4L2_CTRL_TYPE_INTEGER64`` and ``V4L2_CTRL_FLAG_HAS_PAYLOAD`` is not set. - * - - - char * + * - char * - ``string`` - A pointer to a string. Valid if this control is of type ``V4L2_CTRL_TYPE_STRING``. - * - - - __u8 * + * - __u8 * - ``p_u8`` - A pointer to a matrix control of unsigned 8-bit values. Valid if this control is of type ``V4L2_CTRL_TYPE_U8``. - * - - - __u16 * + * - __u16 * - ``p_u16`` - A pointer to a matrix control of unsigned 16-bit values. Valid if this control is of type ``V4L2_CTRL_TYPE_U16``. - * - - - __u32 * + * - __u32 * - ``p_u32`` - A pointer to a matrix control of unsigned 32-bit values. Valid if this control is of type ``V4L2_CTRL_TYPE_U32``. - * - - - :c:type:`v4l2_area` * + * - :c:type:`v4l2_area` * - ``p_area`` - A pointer to a struct :c:type:`v4l2_area`. Valid if this control is of type ``V4L2_CTRL_TYPE_AREA``. - * - - - void * + * - void * - ``ptr`` - A pointer to a compound type which can be an N-dimensional array and/or a compound type (the control's type is >= ``V4L2_CTRL_COMPOUND_TYPES``). Valid if ``V4L2_CTRL_FLAG_HAS_PAYLOAD`` is set for this control. + * - } + - .. tabularcolumns:: |p{4.0cm}|p{2.2cm}|p{2.1cm}|p{8.2cm}| @@ -221,12 +212,11 @@ still cause this situation. .. flat-table:: struct v4l2_ext_controls :header-rows: 0 :stub-columns: 0 - :widths: 1 1 2 1 + :widths: 1 1 2 - * - union + * - union { - (anonymous) - * - - - __u32 + * - __u32 - ``ctrl_class`` - The control class to which all controls belong, see :ref:`ctrl-class`. Drivers that use a kernel framework for @@ -235,8 +225,7 @@ still cause this situation. support this can be tested by setting ``ctrl_class`` to 0 and calling :ref:`VIDIOC_TRY_EXT_CTRLS <VIDIOC_G_EXT_CTRLS>` with a ``count`` of 0. If that succeeds, then the driver supports this feature. - * - - - __u32 + * - __u32 - ``which`` - Which value of the control to get/set/try. ``V4L2_CTRL_WHICH_CUR_VAL`` will return the current value of the @@ -261,6 +250,8 @@ still cause this situation. by setting ctrl_class to ``V4L2_CTRL_WHICH_CUR_VAL`` and calling VIDIOC_TRY_EXT_CTRLS with a count of 0. If that fails, then the driver does not support ``V4L2_CTRL_WHICH_CUR_VAL``. + * - } + - * - __u32 - ``count`` - The number of controls in the controls array. May also be zero. |