Lines Matching full:ref
29 :ref:`VIDIOC_QUERYCAP` ioctl. As secondary device
30 functions they may also support the :ref:`raw VBI output <raw-vbi>`
38 Video output devices shall support :ref:`audio output <audio>`,
39 :ref:`modulator <tuner>`, :ref:`controls <control>`,
40 :ref:`cropping and scaling <crop>` and
41 :ref:`streaming parameter <streaming-par>` ioctls as needed. The
42 :ref:`video output <video>` ioctls must be supported by all video
60 defaults. An example is given in :ref:`crop`.
65 and call the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` ioctl with a pointer
75 of :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, and call the :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>`
77 parameters and finally return the actual parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
80 Like :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` the :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` ioctl
86 discussed in :ref:`pixfmt`. See also the specification of the
87 :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` and :ref:`VIDIOC_TRY_FMT <VI…
88 details. Video output devices must implement both the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
89 and :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctl, even if :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ignores all
90 requests and always returns default parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` does.
91 :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` is optional.
96 A video output device may support the :ref:`write() function <rw>`
97 and/or streaming (:ref:`memory mapping <mmap>` or
98 :ref:`user pointer <userp>`) I/O. See :ref:`io` for details.