Synopsis
========
-.. cpp:function:: int ioctl( int fd, int request, struct v4l2_subdev_frame_interval *argp )
+.. c:function:: int ioctl( int fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, struct v4l2_subdev_frame_interval *argp )
+ :name: VIDIOC_SUBDEV_G_FRAME_INTERVAL
+
+.. c:function:: int ioctl( int fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL, struct v4l2_subdev_frame_interval *argp )
+ :name: VIDIOC_SUBDEV_S_FRAME_INTERVAL
Arguments
``fd``
File descriptor returned by :ref:`open() <func-open>`.
-``request``
- VIDIOC_SUBDEV_G_FRAME_INTERVAL,
- VIDIOC_SUBDEV_S_FRAME_INTERVAL
-
``argp``
To retrieve the current frame interval applications set the ``pad``
field of a struct
-:ref:`v4l2_subdev_frame_interval <v4l2-subdev-frame-interval>` to
+:c:type:`v4l2_subdev_frame_interval` to
the desired pad number as reported by the media controller API. When
they call the ``VIDIOC_SUBDEV_G_FRAME_INTERVAL`` ioctl with a pointer to
this structure the driver fills the members of the ``interval`` field.
structure the driver verifies the requested interval, adjusts it based
on the hardware capabilities and configures the device. Upon return the
struct
-:ref:`v4l2_subdev_frame_interval <v4l2-subdev-frame-interval>`
+:c:type:`v4l2_subdev_frame_interval`
contains the current frame interval as would be returned by a
``VIDIOC_SUBDEV_G_FRAME_INTERVAL`` call.
the same sub-device is not defined.
-.. _v4l2-subdev-frame-interval:
+.. c:type:: v4l2_subdev_frame_interval
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
.. flat-table:: struct v4l2_subdev_frame_interval
:header-rows: 0
- .. row 2
- - struct :ref:`v4l2_fract <v4l2-fract>`
+ - struct :c:type:`v4l2_fract`
- ``interval``
EINVAL
The struct
- :ref:`v4l2_subdev_frame_interval <v4l2-subdev-frame-interval>`
+ :c:type:`v4l2_subdev_frame_interval`
``pad`` references a non-existing pad, or the pad doesn't support
frame intervals.