Lines Matching full:ref
36 :ref:`VIDIOC_QUERYCAP` ioctl. As secondary device
37 functions they may also support the :ref:`raw VBI output <raw-vbi>`
46 Video output devices shall support :ref:`audio output <audio>`,
47 :ref:`modulator <tuner>`, :ref:`controls <control>`,
48 :ref:`cropping and scaling <crop>` and
49 :ref:`streaming parameter <streaming-par>` ioctls as needed. The
50 :ref:`video output <video>` ioctls must be supported by all video
63 As usual these parameters are *not* reset at :ref:`open() <func-open>`
69 defaults. An example is given in :ref:`crop`.
74 and call the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` ioctl with a pointer
84 of :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, and call the :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>`
86 parameters and finally return the actual parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
89 Like :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` the :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` ioctl
95 discussed in :ref:`pixfmt`. See also the specification of the
96 :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`, :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` and :ref:`VIDIOC_TRY_FMT <VI…
97 details. Video output devices must implement both the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
98 and :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctl, even if :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ignores all
99 requests and always returns default parameters as :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>` does.
100 :ref:`VIDIOC_TRY_FMT <VIDIOC_G_FMT>` is optional.
106 A video output device may support the :ref:`write() function <rw>`
107 and/or streaming (:ref:`memory mapping <mmap>` or
108 :ref:`user pointer <userp>`) I/O. See :ref:`io` for details.