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>`
39 Video output devices shall support :ref:`audio output <audio>`,
40 :ref:`modulator <tuner>`, :ref:`controls <control>`,
41 :ref:`cropping and scaling <crop>` and
42 :ref:`streaming parameter <streaming-par>` ioctls as needed. The
43 :ref:`video output <video>` ioctls must be supported by all video
56 As usual these parameters are *not* reset at :ref:`open() <func-open>`
62 defaults. An example is given in :ref:`crop`.
67 and call the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` ioctl with a pointer
77 of :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, and call the :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>`
79 parameters and finally return the actual parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
82 Like :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` the :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` ioctl
88 discussed in :ref:`pixfmt`. See also the specification of the
89 :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` and :ref:`VIDIOC_TRY_FMT <VI…
90 details. Video output devices must implement both the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
91 and :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctl, even if :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ignores all
92 requests and always returns default parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` does.
93 :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` is optional.
99 A video output device may support the :ref:`write() function <rw>`
100 and/or streaming (:ref:`memory mapping <mmap>` or
101 :ref:`user pointer <userp>`) I/O. See :ref:`io` for details.