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提交 43c1daa4 编写于 作者: M Mauro Carvalho Chehab
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[media] DocBook: Use the generic ioctl error codes for all V4L ioctl's 

Be sure that all VIDIOC_* ioctl are using the return error macro, and
aren't specifying generic error codes internally.
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
上级 6d172492
隐藏空白更改
内联 并排
Showing with 53 addition and 453 deletion
Documentation/DocBook/media/v4l/gen-errors.xml
浏览文件 @ 43c1daa4
......@@ -10,7 +10,24 @@
<entry>The ioctl can't be handled because the device is busy. This is
typically return while device is streaming, and an ioctl tried to
change something that would affect the stream, or would require the
usage of a hardware resource that was already allocated.</entry>
usage of a hardware resource that was already allocated. The ioctl
must not be retried without performing another action to fix the
problem first (typically: stop the stream before retrying).</entry>
</row>
<row>
<entry>EINVAL</entry>
<entry>The ioctl is not supported by the driver, actually meaning that
the required functionality is not available.</entry>
</row>
<row>
<entry>ENOMEM</entry>
<entry>There's not enough memory to handle the desired operation.</entry>
</row>
<row>
<entry>ENOSPC</entry>
<entry>On USB devices, the stream ioctl's can return this error meaning
that this request would overcommit the usb bandwidth reserved
for periodic transfers (up to 80% of the USB bandwidth).</entry>
</row>
</tbody>
</tgroup>
......
Documentation/DocBook/media/v4l/vidioc-cropcap.xml
浏览文件 @ 43c1daa4
......@@ -156,19 +156,10 @@ on 22 Oct 2002 subject "Re:[V4L][patches!] Re:v4l2/kernel-2.5" -->
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The &v4l2-cropcap; <structfield>type</structfield> is
invalid or the ioctl is not supported. This is not permitted for
video capture, output and overlay devices, which must support
<constant>VIDIOC_CROPCAP</constant>.</para>
invalid. This is not permitted for video capture, output and overlay devices,
which must support <constant>VIDIOC_CROPCAP</constant>.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-ident.xml
浏览文件 @ 43c1daa4
......@@ -258,18 +258,9 @@ could not identify it.</entry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The driver does not support this ioctl, or the
<structfield>match_type</structfield> is invalid.</para>
<para>The <structfield>match_type</structfield> is invalid.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml
浏览文件 @ 43c1daa4
......@@ -246,15 +246,6 @@ register.</entry>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The driver does not support this ioctl, or the kernel
was not compiled with the <constant>CONFIG_VIDEO_ADV_DEBUG</constant>
option, or the <structfield>match_type</structfield> is invalid, or the
selected chip or register does not exist.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EPERM</errorcode></term>
<listitem>
......@@ -265,11 +256,3 @@ to execute these ioctls.</para>
</variablelist>
</refsect1>
</refentry>
<!--
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-dqevent.xml
浏览文件 @ 43c1daa4
......@@ -136,11 +136,7 @@
</table>
</refsect1>
<refsect1>
&return-value;
</refsect1>
</refentry>
<!--
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml
浏览文件 @ 43c1daa4
......@@ -180,8 +180,7 @@ Pictures</wordasword>, rather than immediately.</entry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The driver does not support this ioctl, or the
<structfield>cmd</structfield> field is invalid.</para>
<para>The <structfield>cmd</structfield> field is invalid.</para>
</listitem>
</varlistentry>
<varlistentry>
......@@ -194,11 +193,3 @@ the encoder was not running.</para>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml
浏览文件 @ 43c1daa4
......@@ -254,17 +254,6 @@ enumerated.</entry>
<refsect1>
&return-value;
<para>See the description section above for a list of return
values that <varname>errno</varname> can have.</para>
</refsect1>
</refentry>
<!--
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-->
Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml
浏览文件 @ 43c1daa4
......@@ -267,16 +267,5 @@ application should zero out all members except for the
<refsect1>
&return-value;
<para>See the description section above for a list of return
values that <varname>errno</varname> can have.</para>
</refsect1>
</refentry>
<!--
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-enumaudio.xml
浏览文件 @ 43c1daa4
......@@ -68,19 +68,9 @@ until the driver returns <errorcode>EINVAL</errorcode>.</para>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The number of the audio input is out of bounds, or
there are no audio inputs at all and this ioctl is not
supported.</para>
<para>The number of the audio input is out of bounds.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-enumaudioout.xml
浏览文件 @ 43c1daa4
......@@ -71,19 +71,9 @@ signal to a sound card are not audio outputs in this sense.</para>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The number of the audio output is out of bounds, or
there are no audio outputs at all and this ioctl is not
supported.</para>
<para>The number of the audio output is out of bounds.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
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mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-g-audio.xml
浏览文件 @ 43c1daa4
......@@ -164,25 +164,9 @@ tuner.</entry>
<listitem>
<para>No audio inputs combine with the current video input,
or the number of the selected audio input is out of bounds or it does
not combine, or there are no audio inputs at all and the ioctl is not
supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>I/O is in progress, the input cannot be
switched.</para>
not combine.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
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indent-tabs-mode: nil
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-->
Documentation/DocBook/media/v4l/vidioc-g-audioout.xml
浏览文件 @ 43c1daa4
......@@ -130,25 +130,9 @@ applications must set the array to zero.</entry>
<listitem>
<para>No audio outputs combine with the current video
output, or the number of the selected audio output is out of bounds or
it does not combine, or there are no audio outputs at all and the
ioctl is not supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>I/O is in progress, the output cannot be
switched.</para>
it does not combine.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
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Documentation/DocBook/media/v4l/vidioc-g-crop.xml
浏览文件 @ 43c1daa4
......@@ -122,22 +122,5 @@ for &v4l2-cropcap; <structfield>bounds</structfield> is used.</entry>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>Cropping is not supported.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
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Documentation/DocBook/media/v4l/vidioc-g-dv-preset.xml
浏览文件 @ 43c1daa4
......@@ -97,14 +97,8 @@ If the preset is not supported, it returns an &EINVAL; </para>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1>
&return-value;
</refsect1>
</refentry>
<!--
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml
浏览文件 @ 43c1daa4
......@@ -212,12 +212,7 @@ bit 0 (V4L2_DV_VSYNC_POS_POL) is for vertical sync polarity and bit 1 (V4L2_DV_H
</tgroup>
</table>
</refsect1>
<refsect1>
&return-value;
</refsect1>
</refentry>
<!--
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml
浏览文件 @ 43c1daa4
......@@ -192,22 +192,5 @@ this mask to obtain the picture coding type.</entry>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The driver does not support this ioctl.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml
浏览文件 @ 43c1daa4
......@@ -445,29 +445,12 @@ by a privileged user to negotiate the parameters for a destructive
overlay.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The framebuffer parameters cannot be changed at this
time because overlay is already enabled, or capturing is enabled
and the hardware cannot capture and overlay simultaneously.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The ioctl is not supported or the
<constant>VIDIOC_S_FBUF</constant> parameters are unsuitable.</para>
<para>The <constant>VIDIOC_S_FBUF</constant> parameters are unsuitable.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-g-fmt.xml
浏览文件 @ 43c1daa4
......@@ -183,30 +183,14 @@ capture and output devices.</entry>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The data format cannot be changed at this
time, for example because I/O is already in progress.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The &v4l2-format; <structfield>type</structfield>
field is invalid, the requested buffer type not supported, or
<constant>VIDIOC_TRY_FMT</constant> was called and is not
supported with this buffer type.</para>
field is invalid, the requested buffer type not supported, or the
format is not supported with this buffer type.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/media/v4l/vidioc-g-input.xml
浏览文件 @ 43c1daa4
......@@ -75,26 +75,9 @@ querying or negotiating any other parameters.</para>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The number of the video input is out of bounds, or
there are no video inputs at all and this ioctl is not
supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>I/O is in progress, the input cannot be
switched.</para>
<para>The number of the video input is out of bounds.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
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Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml
浏览文件 @ 43c1daa4
......@@ -159,22 +159,5 @@ to add them.</para>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
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sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
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Documentation/DocBook/media/v4l/vidioc-g-output.xml
浏览文件 @ 43c1daa4
......@@ -76,25 +76,9 @@ negotiating any other parameters.</para>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The number of the video output is out of bounds, or
there are no video outputs at all and this ioctl is not
supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>I/O is in progress, the output cannot be
switched.</para>
there are no video outputs at all.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-g-parm.xml
浏览文件 @ 43c1daa4
......@@ -311,22 +311,5 @@ excessive motion blur. </para>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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indent-tabs-mode: nil
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Documentation/DocBook/media/v4l/vidioc-g-priority.xml
浏览文件 @ 43c1daa4
......@@ -120,8 +120,7 @@ recording.</entry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The requested priority value is invalid, or the
driver does not support access priorities.</para>
<para>The requested priority value is invalid.</para>
</listitem>
</varlistentry>
<varlistentry>
......
Documentation/DocBook/media/v4l/vidioc-g-sliced-vbi-cap.xml
浏览文件 @ 43c1daa4
......@@ -246,19 +246,10 @@ line systems.</entry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The device does not support sliced VBI capturing or
output, or the value in the <structfield>type</structfield> field is
<para>The value in the <structfield>type</structfield> field is
wrong.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-g-std.xml
浏览文件 @ 43c1daa4
......@@ -82,14 +82,7 @@ standards.</para>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported, or the
<constant>VIDIOC_S_STD</constant> parameter was unsuitable.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not change the standard</para>
<para>The <constant>VIDIOC_S_STD</constant> parameter was unsuitable.</para>
</listitem>
</varlistentry>
</variablelist>
......
Documentation/DocBook/media/v4l/vidioc-log-status.xml
浏览文件 @ 43c1daa4
......@@ -37,22 +37,5 @@ was introduced in Linux 2.6.15.</para>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The driver does not support this ioctl.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-overlay.xml
浏览文件 @ 43c1daa4
......@@ -65,19 +65,10 @@
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>Video overlay is not supported, or the
parameters have not been set up. See <xref
<para>The overlay parameters have not been set up. See <xref
linkend="overlay" /> for the necessary steps.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-qbuf.xml
浏览文件 @ 43c1daa4
......@@ -158,15 +158,6 @@ or no buffers have been allocated yet, or the
<structfield>userptr</structfield> or
<structfield>length</structfield> are invalid.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>ENOMEM</errorcode></term>
<listitem>
<para>Not enough physical or virtual memory was available to
enqueue a user pointer buffer.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EIO</errorcode></term>
<listitem>
<para><constant>VIDIOC_DQBUF</constant> failed due to an
......@@ -184,11 +175,3 @@ continue streaming.
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-query-dv-preset.xml
浏览文件 @ 43c1daa4
......@@ -61,27 +61,5 @@ returned.</para>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not sense the preset</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-querycap.xml
浏览文件 @ 43c1daa4
......@@ -283,24 +283,5 @@ linkend="mmap">streaming</link> I/O method.</entry>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The device is not compatible with this
specification.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-querystd.xml
浏览文件 @ 43c1daa4
......@@ -62,28 +62,5 @@ current video input or output.</para>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not detect the standard</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-reqbufs.xml
浏览文件 @ 43c1daa4
......@@ -121,14 +121,6 @@ higher. This array should be zeroed by applications.</entry>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The driver supports multiple opens and I/O is already
in progress, or reallocation of buffers was attempted although one or
more are still mapped.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
......@@ -140,11 +132,3 @@ supported.</para>
</variablelist>
</refsect1>
</refentry>
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Documentation/DocBook/media/v4l/vidioc-streamon.xml
浏览文件 @ 43c1daa4
......@@ -88,9 +88,9 @@ synchronize with other events.</para>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>Streaming I/O is not supported, the buffer
<structfield>type</structfield> is not supported, or no buffers have
been allocated (memory mapping) or enqueued (output) yet.</para>
<para>The buffer<structfield>type</structfield> is not supported,
or no buffers have been allocated (memory mapping) or enqueued
(output) yet.</para>
</listitem>
</varlistentry>
<varlistentry>
......@@ -105,11 +105,3 @@ been allocated (memory mapping) or enqueued (output) yet.</para>
</variablelist>
</refsect1>
</refentry>
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-->
Documentation/DocBook/media/v4l/vidioc-subdev-g-fmt.xml
浏览文件 @ 43c1daa4
......@@ -177,4 +177,7 @@
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
&return-value;
</refsect1>
</refentry>
Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml
浏览文件 @ 43c1daa4
......@@ -290,13 +290,8 @@
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1>
&return-value;
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
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