media: v4l uAPI: add descriptions for arguments to all ioctls

Several ioctls are missing descriptions for the third argument
of the ioctl() command. They should have a description, as
otherwise the output won't be ok, and will sound like something
is missing.

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

Documentation/media/uapi/v4l/vidioc-create-bufs.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_create_buffers`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-cropcap.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_cropcap`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-dbg-g-chip-info.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_dbg_chip_info`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-dbg-g-register.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_dbg_register`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-dqevent.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_event`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-dv-timings-cap.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_dv_timings_cap`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-encoder-cmd.rst

@@ -29,7 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
-
+    Pointer to struct :c:type:`v4l2_encoder_cmd`.
 
 Description
 ===========

Documentation/media/uapi/v4l/vidioc-enum-dv-timings.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_enum_dv_timings`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enum-fmt.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_fmtdesc`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enum-frameintervals.rst

@@ -26,9 +26,8 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
-    Pointer to a struct :c:type:`v4l2_frmivalenum`
-    structure that contains a pixel format and size and receives a frame
-    interval.
+    Pointer to struct :c:type:`v4l2_frmivalenum`
+    that contains a pixel format and size and receives a frame interval.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enum-framesizes.rst

@@ -26,7 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
-    Pointer to a struct :c:type:`v4l2_frmsizeenum`
+    Pointer to struct :c:type:`v4l2_frmsizeenum`
     that contains an index and pixel format and receives a frame width
     and height.
 

Documentation/media/uapi/v4l/vidioc-enum-freq-bands.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_frequency_band`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enumaudio.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_audio`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enumaudioout.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_audioout`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enuminput.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_input`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enumoutput.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_output`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-enumstd.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_standard`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-expbuf.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_exportbuffer`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-audio.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_audio`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-audioout.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_audioout`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-crop.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_crop`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-ctrl.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_control`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-dv-timings.rst

@@ -35,6 +35,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_dv_timings`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-edid.rst

@@ -36,6 +36,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+   Pointer to struct :c:type:`v4l2_edid`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-enc-index.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_enc_idx`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-ext-ctrls.rst

@@ -34,6 +34,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_ext_controls`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-fbuf.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_framebuffer`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-fmt.rst

@@ -31,6 +31,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_format`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-frequency.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_frequency`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-input.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer an integer with input index.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-jpegcomp.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_jpegcompression`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-modulator.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_modulator`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-output.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to an integer with output index.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-parm.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_streamparm`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-priority.rst

@@ -29,7 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
-    Pointer to an enum v4l2_priority type.
+    Pointer to an enum :c:type:`v4l2_priority` type.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-selection.rst

@@ -29,11 +29,8 @@ Arguments
 ``fd``
     File descriptor returned by :ref:`open() <func-open>`.
 
-``request``
-    VIDIOC_G_SELECTION, VIDIOC_S_SELECTION
-
 ``argp``
-
+    Pointer to struct :c:type:`v4l2_selection`.
 
 Description
 ===========

Documentation/media/uapi/v4l/vidioc-g-sliced-vbi-cap.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_sliced_vbi_cap`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-std.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to :c:type:`v4l2_std_id`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-g-tuner.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_tuner`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-overlay.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to an integer.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-prepare-buf.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_buffer`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-qbuf.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_buffer`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-query-dv-timings.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_dv_timings`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-querybuf.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_buffer`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-querycap.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_capability`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-queryctrl.rst

@@ -32,6 +32,8 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_queryctl`, :c:type:`v4l2_query_ext_ctrl`
+    or :c:type`v4l2_querymenu` (depending on the ioctl).
 
 
 Description

Documentation/media/uapi/v4l/vidioc-querystd.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to :c:type:`v4l2_std_id`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-reqbufs.rst

@@ -26,7 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
-
+    Pointer to struct :c:type:`v4l2_requestbuffers`.
 
 Description
 ===========

Documentation/media/uapi/v4l/vidioc-s-hw-freq-seek.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_hw_freq_seek`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-streamon.rst

@@ -29,7 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
-
+    Pointer to an integer.
 
 Description
 ===========

Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-interval.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_frame_interval_enum`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subdev-enum-frame-size.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_frame_size_enum`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subdev-enum-mbus-code.rst

@@ -26,6 +26,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_mbus_code_enum`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subdev-g-crop.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_crop`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subdev-g-fmt.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_format`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subdev-g-frame-interval.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_frame_interval`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subdev-g-selection.rst

@@ -29,6 +29,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_subdev_selection`.
 
 
 Description

Documentation/media/uapi/v4l/vidioc-subscribe-event.rst

@@ -30,6 +30,7 @@ Arguments
     File descriptor returned by :ref:`open() <func-open>`.
 
 ``argp``
+    Pointer to struct :c:type:`v4l2_event_subscription`.
 
 
 Description