doc_rst: rename the media Sphinx suff to Documentation/media

The name of the subsystem is "media", and not "linux_tv". Also,
as we plan to add other stuff there in the future, let's
rename also the media uAPI book to media_uapi, to make it
clearer.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

1 files changed, 222 insertions, 0 deletions

diff --git a/Documentation/media/uapi/v4l/vidioc-enumoutput.rst b/Documentation/media/uapi/v4l/vidioc-enumoutput.rst
new file mode 100644
index 000000000000..82fc9d3b237f
--- /dev/null
+++ b/Documentation/media/uapi/v4l/vidioc-enumoutput.rst
@@ -0,0 +1,222 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _VIDIOC_ENUMOUTPUT:
+
+***********************
+ioctl VIDIOC_ENUMOUTPUT
+***********************
+
+Name
+====
+
+VIDIOC_ENUMOUTPUT - Enumerate video outputs
+
+
+Synopsis
+========
+
+.. cpp:function:: int ioctl( int fd, int request, struct v4l2_output *argp )
+
+
+Arguments
+=========
+
+``fd``
+    File descriptor returned by :ref:`open() <func-open>`.
+
+``request``
+    VIDIOC_ENUMOUTPUT
+
+``argp``
+
+
+Description
+===========
+
+To query the attributes of a video outputs applications initialize the
+``index`` field of struct :ref:`v4l2_output <v4l2-output>` and call
+the :ref:`VIDIOC_ENUMOUTPUT` ioctl with a pointer to this structure.
+Drivers fill the rest of the structure or return an ``EINVAL`` error code
+when the index is out of bounds. To enumerate all outputs applications
+shall begin at index zero, incrementing by one until the driver returns
+EINVAL.
+
+
+.. _v4l2-output:
+
+.. flat-table:: struct v4l2_output
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+
+    -  .. row 1
+
+       -  __u32
+
+       -  ``index``
+
+       -  Identifies the output, set by the application.
+
+    -  .. row 2
+
+       -  __u8
+
+       -  ``name``\ [32]
+
+       -  Name of the video output, a NUL-terminated ASCII string, for
+	  example: "Vout". This information is intended for the user,
+	  preferably the connector label on the device itself.
+
+    -  .. row 3
+
+       -  __u32
+
+       -  ``type``
+
+       -  Type of the output, see :ref:`output-type`.
+
+    -  .. row 4
+
+       -  __u32
+
+       -  ``audioset``
+
+       -  Drivers can enumerate up to 32 video and audio outputs. This field
+	  shows which audio outputs were selectable as the current output if
+	  this was the currently selected video output. It is a bit mask.
+	  The LSB corresponds to audio output 0, the MSB to output 31. Any
+	  number of bits can be set, or none.
+
+	  When the driver does not enumerate audio outputs no bits must be
+	  set. Applications shall not interpret this as lack of audio
+	  support. Drivers may automatically select audio outputs without
+	  enumerating them.
+
+	  For details on audio outputs and how to select the current output
+	  see :ref:`audio`.
+
+    -  .. row 5
+
+       -  __u32
+
+       -  ``modulator``
+
+       -  Output devices can have zero or more RF modulators. When the
+	  ``type`` is ``V4L2_OUTPUT_TYPE_MODULATOR`` this is an RF connector
+	  and this field identifies the modulator. It corresponds to struct
+	  :ref:`v4l2_modulator <v4l2-modulator>` field ``index``. For
+	  details on modulators see :ref:`tuner`.
+
+    -  .. row 6
+
+       -  :ref:`v4l2_std_id <v4l2-std-id>`
+
+       -  ``std``
+
+       -  Every video output supports one or more different video standards.
+	  This field is a set of all supported standards. For details on
+	  video standards and how to switch see :ref:`standard`.
+
+    -  .. row 7
+
+       -  __u32
+
+       -  ``capabilities``
+
+       -  This field provides capabilities for the output. See
+	  :ref:`output-capabilities` for flags.
+
+    -  .. row 8
+
+       -  __u32
+
+       -  ``reserved``\ [3]
+
+       -  Reserved for future extensions. Drivers must set the array to
+	  zero.
+
+
+
+.. _output-type:
+
+.. flat-table:: Output Type
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       3 1 4
+
+
+    -  .. row 1
+
+       -  ``V4L2_OUTPUT_TYPE_MODULATOR``
+
+       -  1
+
+       -  This output is an analog TV modulator.
+
+    -  .. row 2
+
+       -  ``V4L2_OUTPUT_TYPE_ANALOG``
+
+       -  2
+
+       -  Analog baseband output, for example Composite / CVBS, S-Video,
+	  RGB.
+
+    -  .. row 3
+
+       -  ``V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY``
+
+       -  3
+
+       -  [?]
+
+
+
+.. _output-capabilities:
+
+.. flat-table:: Output capabilities
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       3 1 4
+
+
+    -  .. row 1
+
+       -  ``V4L2_OUT_CAP_DV_TIMINGS``
+
+       -  0x00000002
+
+       -  This output supports setting video timings by using
+	  VIDIOC_S_DV_TIMINGS.
+
+    -  .. row 2
+
+       -  ``V4L2_OUT_CAP_STD``
+
+       -  0x00000004
+
+       -  This output supports setting the TV standard by using
+	  VIDIOC_S_STD.
+
+    -  .. row 3
+
+       -  ``V4L2_OUT_CAP_NATIVE_SIZE``
+
+       -  0x00000008
+
+       -  This output supports setting the native size using the
+	  ``V4L2_SEL_TGT_NATIVE_SIZE`` selection target, see
+	  :ref:`v4l2-selections-common`.
+
+
+Return Value
+============
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+EINVAL
+    The struct :ref:`v4l2_output <v4l2-output>` ``index`` is out of
+    bounds.