mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-10-31 08:08:51 +01:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
361
Documentation/DocBook/media/v4l/vidioc-dqevent.xml
Normal file
361
Documentation/DocBook/media/v4l/vidioc-dqevent.xml
Normal file
|
|
@ -0,0 +1,361 @@
|
|||
<refentry id="vidioc-dqevent">
|
||||
<refmeta>
|
||||
<refentrytitle>ioctl VIDIOC_DQEVENT</refentrytitle>
|
||||
&manvol;
|
||||
</refmeta>
|
||||
|
||||
<refnamediv>
|
||||
<refname>VIDIOC_DQEVENT</refname>
|
||||
<refpurpose>Dequeue event</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_event
|
||||
*<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_DQEVENT</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>argp</parameter></term>
|
||||
<listitem>
|
||||
<para></para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
|
||||
<refsect1>
|
||||
<title>Description</title>
|
||||
|
||||
<para>Dequeue an event from a video device. No input is required
|
||||
for this ioctl. All the fields of the &v4l2-event; structure are
|
||||
filled by the driver. The file handle will also receive exceptions
|
||||
which the application may get by e.g. using the select system
|
||||
call.</para>
|
||||
|
||||
<table frame="none" pgwide="1" id="v4l2-event">
|
||||
<title>struct <structname>v4l2_event</structname></title>
|
||||
<tgroup cols="4">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>type</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>Type of the event.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>union</entry>
|
||||
<entry><structfield>u</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>&v4l2-event-vsync;</entry>
|
||||
<entry><structfield>vsync</structfield></entry>
|
||||
<entry>Event data for event <constant>V4L2_EVENT_VSYNC</constant>.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>&v4l2-event-ctrl;</entry>
|
||||
<entry><structfield>ctrl</structfield></entry>
|
||||
<entry>Event data for event <constant>V4L2_EVENT_CTRL</constant>.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>&v4l2-event-frame-sync;</entry>
|
||||
<entry><structfield>frame_sync</structfield></entry>
|
||||
<entry>Event data for event
|
||||
<constant>V4L2_EVENT_FRAME_SYNC</constant>.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>&v4l2-event-motion-det;</entry>
|
||||
<entry><structfield>motion_det</structfield></entry>
|
||||
<entry>Event data for event V4L2_EVENT_MOTION_DET.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>&v4l2-event-src-change;</entry>
|
||||
<entry><structfield>src_change</structfield></entry>
|
||||
<entry>Event data for event V4L2_EVENT_SOURCE_CHANGE.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>__u8</entry>
|
||||
<entry><structfield>data</structfield>[64]</entry>
|
||||
<entry>Event data. Defined by the event type. The union
|
||||
should be used to define easily accessible type for
|
||||
events.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>pending</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>Number of pending events excluding this one.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>sequence</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>Event sequence number. The sequence number is
|
||||
incremented for every subscribed event that takes place.
|
||||
If sequence numbers are not contiguous it means that
|
||||
events have been lost.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>struct timespec</entry>
|
||||
<entry><structfield>timestamp</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>Event timestamp.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>u32</entry>
|
||||
<entry><structfield>id</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The ID associated with the event source. If the event does not
|
||||
have an associated ID (this depends on the event type), then this
|
||||
is 0.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>reserved</structfield>[8]</entry>
|
||||
<entry></entry>
|
||||
<entry>Reserved for future extensions. Drivers must set
|
||||
the array to zero.</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table frame="none" pgwide="1" id="v4l2-event-vsync">
|
||||
<title>struct <structname>v4l2_event_vsync</structname></title>
|
||||
<tgroup cols="3">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u8</entry>
|
||||
<entry><structfield>field</structfield></entry>
|
||||
<entry>The upcoming field. See &v4l2-field;.</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table frame="none" pgwide="1" id="v4l2-event-ctrl">
|
||||
<title>struct <structname>v4l2_event_ctrl</structname></title>
|
||||
<tgroup cols="4">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>changes</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>A bitmask that tells what has changed. See <xref linkend="changes-flags" />.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>type</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The type of the control. See &v4l2-ctrl-type;.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>union (anonymous)</entry>
|
||||
<entry></entry>
|
||||
<entry></entry>
|
||||
<entry></entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>__s32</entry>
|
||||
<entry><structfield>value</structfield></entry>
|
||||
<entry>The 32-bit value of the control for 32-bit control types.
|
||||
This is 0 for string controls since the value of a string
|
||||
cannot be passed using &VIDIOC-DQEVENT;.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry></entry>
|
||||
<entry>__s64</entry>
|
||||
<entry><structfield>value64</structfield></entry>
|
||||
<entry>The 64-bit value of the control for 64-bit control types.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>flags</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The control flags. See <xref linkend="control-flags" />.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__s32</entry>
|
||||
<entry><structfield>minimum</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The minimum value of the control. See &v4l2-queryctrl;.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__s32</entry>
|
||||
<entry><structfield>maximum</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The maximum value of the control. See &v4l2-queryctrl;.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__s32</entry>
|
||||
<entry><structfield>step</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The step value of the control. See &v4l2-queryctrl;.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__s32</entry>
|
||||
<entry><structfield>default_value</structfield></entry>
|
||||
<entry></entry>
|
||||
<entry>The default value value of the control. See &v4l2-queryctrl;.</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table frame="none" pgwide="1" id="v4l2-event-frame-sync">
|
||||
<title>struct <structname>v4l2_event_frame_sync</structname></title>
|
||||
<tgroup cols="3">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>frame_sequence</structfield></entry>
|
||||
<entry>
|
||||
The sequence number of the frame being received.
|
||||
</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table frame="none" pgwide="1" id="v4l2-event-src-change">
|
||||
<title>struct <structname>v4l2_event_src_change</structname></title>
|
||||
<tgroup cols="3">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>changes</structfield></entry>
|
||||
<entry>
|
||||
A bitmask that tells what has changed. See <xref linkend="src-changes-flags" />.
|
||||
</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table frame="none" pgwide="1" id="v4l2-event-motion-det">
|
||||
<title>struct <structname>v4l2_event_motion_det</structname></title>
|
||||
<tgroup cols="3">
|
||||
&cs-str;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>flags</structfield></entry>
|
||||
<entry>
|
||||
Currently only one flag is available: if <constant>V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ</constant>
|
||||
is set, then the <structfield>frame_sequence</structfield> field is valid,
|
||||
otherwise that field should be ignored.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>frame_sequence</structfield></entry>
|
||||
<entry>
|
||||
The sequence number of the frame being received. Only valid if the
|
||||
<constant>V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ</constant> flag was set.
|
||||
</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>__u32</entry>
|
||||
<entry><structfield>region_mask</structfield></entry>
|
||||
<entry>
|
||||
The bitmask of the regions that reported motion. There is at least one
|
||||
region. If this field is 0, then no motion was detected at all.
|
||||
If there is no <constant>V4L2_CID_DETECT_MD_REGION_GRID</constant> control
|
||||
(see <xref linkend="detect-controls" />) to assign a different region
|
||||
to each cell in the motion detection grid, then that all cells
|
||||
are automatically assigned to the default region 0.
|
||||
</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table pgwide="1" frame="none" id="changes-flags">
|
||||
<title>Changes</title>
|
||||
<tgroup cols="3">
|
||||
&cs-def;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry><constant>V4L2_EVENT_CTRL_CH_VALUE</constant></entry>
|
||||
<entry>0x0001</entry>
|
||||
<entry>This control event was triggered because the value of the control
|
||||
changed. Special case: if a button control is pressed, then this
|
||||
event is sent as well, even though there is not explicit value
|
||||
associated with a button control.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_EVENT_CTRL_CH_FLAGS</constant></entry>
|
||||
<entry>0x0002</entry>
|
||||
<entry>This control event was triggered because the control flags
|
||||
changed.</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry><constant>V4L2_EVENT_CTRL_CH_RANGE</constant></entry>
|
||||
<entry>0x0004</entry>
|
||||
<entry>This control event was triggered because the minimum,
|
||||
maximum, step or the default value of the control changed.</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
|
||||
<table pgwide="1" frame="none" id="src-changes-flags">
|
||||
<title>Source Changes</title>
|
||||
<tgroup cols="3">
|
||||
&cs-def;
|
||||
<tbody valign="top">
|
||||
<row>
|
||||
<entry><constant>V4L2_EVENT_SRC_CH_RESOLUTION</constant></entry>
|
||||
<entry>0x0001</entry>
|
||||
<entry>This event gets triggered when a resolution change is
|
||||
detected at an input. This can come from an input connector or
|
||||
from a video decoder.
|
||||
</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</table>
|
||||
</refsect1>
|
||||
<refsect1>
|
||||
&return-value;
|
||||
</refsect1>
|
||||
</refentry>
|
||||
Loading…
Add table
Add a link
Reference in a new issue