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authorLinus Torvalds <torvalds@linux-foundation.org>2016-08-04 09:59:37 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-04 09:59:37 -0400
commitc1ece76719205690f4b448460d9b85c130e8021b (patch)
tree01072c593d53ef551788228ea28ce8bc87bc0e45 /Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml
parentfb1b83d3ff78168e10799627f231cf0c05c9d80d (diff)
parent292eaf50c7df4ae2ae8aaa9e1ce3f1240a353ee8 (diff)
downloadlinux-c1ece76719205690f4b448460d9b85c130e8021b.tar.bz2
Merge tag 'media/v4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media DocBook removal and some fixups from Mauro Carvalho Chehab: - removal of the media DocBook (since it's all in Sphinx now) - videobuf2: Fix an allocation regression - a few fixes related to the CEC drivers * tag 'media/v4.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] cec: fix off-by-one memset [media] staging: add MEDIA_SUPPORT dependency [media] vivid: don't handle CEC_MSG_SET_STREAM_PATH [media] media: adv7180: Fix broken interrupt register access [media] vb2: Fix allocation size of dma_parms [media] vim2m: copy the other colorspace-related fields as well [media] adv7511: fix VIC autodetect doc-rst: Remove the media docbook
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-<refentry id="vidioc-dv-timings-cap">
- <refmeta>
- <refentrytitle>ioctl VIDIOC_DV_TIMINGS_CAP, VIDIOC_SUBDEV_DV_TIMINGS_CAP</refentrytitle>
- &manvol;
- </refmeta>
-
- <refnamediv>
- <refname>VIDIOC_DV_TIMINGS_CAP</refname>
- <refname>VIDIOC_SUBDEV_DV_TIMINGS_CAP</refname>
- <refpurpose>The capabilities of the Digital Video receiver/transmitter</refpurpose>
- </refnamediv>
-
- <refsynopsisdiv>
- <funcsynopsis>
- <funcprototype>
- <funcdef>int <function>ioctl</function></funcdef>
- <paramdef>int <parameter>fd</parameter></paramdef>
- <paramdef>int <parameter>request</parameter></paramdef>
- <paramdef>struct v4l2_dv_timings_cap *<parameter>argp</parameter></paramdef>
- </funcprototype>
- </funcsynopsis>
- </refsynopsisdiv>
-
- <refsect1>
- <title>Arguments</title>
-
- <variablelist>
- <varlistentry>
- <term><parameter>fd</parameter></term>
- <listitem>
- <para>&fd;</para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><parameter>request</parameter></term>
- <listitem>
- <para>VIDIOC_DV_TIMINGS_CAP, VIDIOC_SUBDEV_DV_TIMINGS_CAP</para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><parameter>argp</parameter></term>
- <listitem>
- <para></para>
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
-
- <refsect1>
- <title>Description</title>
-
- <para>To query the capabilities of the DV receiver/transmitter applications initialize the
-<structfield>pad</structfield> field to 0, zero the reserved array of &v4l2-dv-timings-cap;
-and call the <constant>VIDIOC_DV_TIMINGS_CAP</constant> ioctl on a video node
-and the driver will fill in the structure. Note that drivers may return
-different values after switching the video input or output.</para>
-
- <para>When implemented by the driver DV capabilities of subdevices can be
-queried by calling the <constant>VIDIOC_SUBDEV_DV_TIMINGS_CAP</constant> ioctl
-directly on a subdevice node. The capabilities are specific to inputs (for DV
-receivers) or outputs (for DV transmitters), applications must specify the
-desired pad number in the &v4l2-dv-timings-cap; <structfield>pad</structfield>
-field and zero the <structfield>reserved</structfield> array. Attempts to query
-capabilities on a pad that doesn't support them will return an &EINVAL;.</para>
-
- <table pgwide="1" frame="none" id="v4l2-bt-timings-cap">
- <title>struct <structname>v4l2_bt_timings_cap</structname></title>
- <tgroup cols="3">
- &cs-str;
- <tbody valign="top">
- <row>
- <entry>__u32</entry>
- <entry><structfield>min_width</structfield></entry>
- <entry>Minimum width of the active video in pixels.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>max_width</structfield></entry>
- <entry>Maximum width of the active video in pixels.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>min_height</structfield></entry>
- <entry>Minimum height of the active video in lines.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>max_height</structfield></entry>
- <entry>Maximum height of the active video in lines.</entry>
- </row>
- <row>
- <entry>__u64</entry>
- <entry><structfield>min_pixelclock</structfield></entry>
- <entry>Minimum pixelclock frequency in Hz.</entry>
- </row>
- <row>
- <entry>__u64</entry>
- <entry><structfield>max_pixelclock</structfield></entry>
- <entry>Maximum pixelclock frequency in Hz.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>standards</structfield></entry>
- <entry>The video standard(s) supported by the hardware.
- See <xref linkend="dv-bt-standards"/> for a list of standards.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>capabilities</structfield></entry>
- <entry>Several flags giving more information about the capabilities.
- See <xref linkend="dv-bt-cap-capabilities"/> for a description of the flags.
- </entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>reserved</structfield>[16]</entry>
- <entry>Reserved for future extensions. Drivers must set the array to zero.</entry>
- </row>
- </tbody>
- </tgroup>
- </table>
-
- <table pgwide="1" frame="none" id="v4l2-dv-timings-cap">
- <title>struct <structname>v4l2_dv_timings_cap</structname></title>
- <tgroup cols="4">
- &cs-str;
- <tbody valign="top">
- <row>
- <entry>__u32</entry>
- <entry><structfield>type</structfield></entry>
- <entry>Type of DV timings as listed in <xref linkend="dv-timing-types"/>.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>pad</structfield></entry>
- <entry>Pad number as reported by the media controller API. This field
- is only used when operating on a subdevice node. When operating on a
- video node applications must set this field to zero.</entry>
- </row>
- <row>
- <entry>__u32</entry>
- <entry><structfield>reserved</structfield>[2]</entry>
- <entry>Reserved for future extensions. Drivers and applications must
- set the array to zero.</entry>
- </row>
- <row>
- <entry>union</entry>
- <entry><structfield></structfield></entry>
- <entry></entry>
- </row>
- <row>
- <entry></entry>
- <entry>&v4l2-bt-timings-cap;</entry>
- <entry><structfield>bt</structfield></entry>
- <entry>BT.656/1120 timings capabilities of the hardware.</entry>
- </row>
- <row>
- <entry></entry>
- <entry>__u32</entry>
- <entry><structfield>raw_data</structfield>[32]</entry>
- <entry></entry>
- </row>
- </tbody>
- </tgroup>
- </table>
-
- <table pgwide="1" frame="none" id="dv-bt-cap-capabilities">
- <title>DV BT Timing capabilities</title>
- <tgroup cols="2">
- &cs-str;
- <tbody valign="top">
- <row>
- <entry>Flag</entry>
- <entry>Description</entry>
- </row>
- <row>
- <entry></entry>
- <entry></entry>
- </row>
- <row>
- <entry>V4L2_DV_BT_CAP_INTERLACED</entry>
- <entry>Interlaced formats are supported.
- </entry>
- </row>
- <row>
- <entry>V4L2_DV_BT_CAP_PROGRESSIVE</entry>
- <entry>Progressive formats are supported.
- </entry>
- </row>
- <row>
- <entry>V4L2_DV_BT_CAP_REDUCED_BLANKING</entry>
- <entry>CVT/GTF specific: the timings can make use of reduced blanking (CVT)
-or the 'Secondary GTF' curve (GTF).
- </entry>
- </row>
- <row>
- <entry>V4L2_DV_BT_CAP_CUSTOM</entry>
- <entry>Can support non-standard timings, i.e. timings not belonging to the
-standards set in the <structfield>standards</structfield> field.
- </entry>
- </row>
- </tbody>
- </tgroup>
- </table>
- </refsect1>
-
- <refsect1>
- &return-value;
- </refsect1>
-</refentry>