[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: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab
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Коммит
43c1daa47d
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@ -10,7 +10,24 @@
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<entry>The ioctl can't be handled because the device is busy. This is
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typically return while device is streaming, and an ioctl tried to
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change something that would affect the stream, or would require the
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usage of a hardware resource that was already allocated.</entry>
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usage of a hardware resource that was already allocated. The ioctl
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must not be retried without performing another action to fix the
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problem first (typically: stop the stream before retrying).</entry>
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</row>
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<row>
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<entry>EINVAL</entry>
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<entry>The ioctl is not supported by the driver, actually meaning that
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the required functionality is not available.</entry>
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</row>
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<row>
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<entry>ENOMEM</entry>
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<entry>There's not enough memory to handle the desired operation.</entry>
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</row>
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<row>
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<entry>ENOSPC</entry>
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<entry>On USB devices, the stream ioctl's can return this error meaning
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that this request would overcommit the usb bandwidth reserved
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for periodic transfers (up to 80% of the USB bandwidth).</entry>
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</row>
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</tbody>
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</tgroup>
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@ -156,19 +156,10 @@ on 22 Oct 2002 subject "Re:[V4L][patches!] Re:v4l2/kernel-2.5" -->
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The &v4l2-cropcap; <structfield>type</structfield> is
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invalid or the ioctl is not supported. This is not permitted for
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video capture, output and overlay devices, which must support
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<constant>VIDIOC_CROPCAP</constant>.</para>
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invalid. This is not permitted for video capture, output and overlay devices,
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which must support <constant>VIDIOC_CROPCAP</constant>.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -258,18 +258,9 @@ could not identify it.</entry>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The driver does not support this ioctl, or the
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<structfield>match_type</structfield> is invalid.</para>
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<para>The <structfield>match_type</structfield> is invalid.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -246,15 +246,6 @@ register.</entry>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The driver does not support this ioctl, or the kernel
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was not compiled with the <constant>CONFIG_VIDEO_ADV_DEBUG</constant>
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option, or the <structfield>match_type</structfield> is invalid, or the
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selected chip or register does not exist.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EPERM</errorcode></term>
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<listitem>
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@ -265,11 +256,3 @@ to execute these ioctls.</para>
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</variablelist>
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</refsect1>
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</refentry>
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@ -136,11 +136,7 @@
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</table>
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</refsect1>
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<refsect1>
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&return-value;
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</refsect1>
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</refentry>
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@ -180,8 +180,7 @@ Pictures</wordasword>, rather than immediately.</entry>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The driver does not support this ioctl, or the
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<structfield>cmd</structfield> field is invalid.</para>
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<para>The <structfield>cmd</structfield> field is invalid.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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@ -194,11 +193,3 @@ the encoder was not running.</para>
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</variablelist>
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</refsect1>
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</refentry>
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@ -254,17 +254,6 @@ enumerated.</entry>
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<refsect1>
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&return-value;
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<para>See the description section above for a list of return
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values that <varname>errno</varname> can have.</para>
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</refsect1>
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</refentry>
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@ -267,16 +267,5 @@ application should zero out all members except for the
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<refsect1>
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&return-value;
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<para>See the description section above for a list of return
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values that <varname>errno</varname> can have.</para>
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</refsect1>
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</refentry>
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@ -68,19 +68,9 @@ until the driver returns <errorcode>EINVAL</errorcode>.</para>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The number of the audio input is out of bounds, or
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there are no audio inputs at all and this ioctl is not
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supported.</para>
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<para>The number of the audio input is out of bounds.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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-->
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@ -71,19 +71,9 @@ signal to a sound card are not audio outputs in this sense.</para>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The number of the audio output is out of bounds, or
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there are no audio outputs at all and this ioctl is not
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supported.</para>
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<para>The number of the audio output is out of bounds.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -164,25 +164,9 @@ tuner.</entry>
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<listitem>
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<para>No audio inputs combine with the current video input,
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or the number of the selected audio input is out of bounds or it does
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not combine, or there are no audio inputs at all and the ioctl is not
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supported.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EBUSY</errorcode></term>
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<listitem>
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<para>I/O is in progress, the input cannot be
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switched.</para>
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not combine.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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-->
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@ -130,25 +130,9 @@ applications must set the array to zero.</entry>
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<listitem>
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<para>No audio outputs combine with the current video
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output, or the number of the selected audio output is out of bounds or
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it does not combine, or there are no audio outputs at all and the
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ioctl is not supported.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EBUSY</errorcode></term>
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<listitem>
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<para>I/O is in progress, the output cannot be
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switched.</para>
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it does not combine.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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<!--
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End:
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-->
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@ -122,22 +122,5 @@ for &v4l2-cropcap; <structfield>bounds</structfield> is used.</entry>
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<refsect1>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>Cropping is not supported.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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-->
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@ -97,14 +97,8 @@ If the preset is not supported, it returns an &EINVAL; </para>
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</tbody>
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</tgroup>
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</table>
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</refsect1>
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<refsect1>
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&return-value;
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</refsect1>
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</refentry>
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-->
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@ -212,12 +212,7 @@ bit 0 (V4L2_DV_VSYNC_POS_POL) is for vertical sync polarity and bit 1 (V4L2_DV_H
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</tgroup>
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</table>
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</refsect1>
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<refsect1>
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&return-value;
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</refsect1>
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</refentry>
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@ -192,22 +192,5 @@ this mask to obtain the picture coding type.</entry>
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<refsect1>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The driver does not support this ioctl.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -445,29 +445,12 @@ by a privileged user to negotiate the parameters for a destructive
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overlay.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EBUSY</errorcode></term>
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<listitem>
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<para>The framebuffer parameters cannot be changed at this
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time because overlay is already enabled, or capturing is enabled
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and the hardware cannot capture and overlay simultaneously.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The ioctl is not supported or the
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<constant>VIDIOC_S_FBUF</constant> parameters are unsuitable.</para>
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<para>The <constant>VIDIOC_S_FBUF</constant> parameters are unsuitable.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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<!--
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@ -183,30 +183,14 @@ capture and output devices.</entry>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EBUSY</errorcode></term>
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<listitem>
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<para>The data format cannot be changed at this
|
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time, for example because I/O is already in progress.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
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<listitem>
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<para>The &v4l2-format; <structfield>type</structfield>
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field is invalid, the requested buffer type not supported, or
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<constant>VIDIOC_TRY_FMT</constant> was called and is not
|
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supported with this buffer type.</para>
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field is invalid, the requested buffer type not supported, or the
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format is not supported with this buffer type.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -75,26 +75,9 @@ querying or negotiating any other parameters.</para>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
|
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<listitem>
|
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<para>The number of the video input is out of bounds, or
|
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there are no video inputs at all and this ioctl is not
|
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supported.</para>
|
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EBUSY</errorcode></term>
|
||||
<listitem>
|
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<para>I/O is in progress, the input cannot be
|
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switched.</para>
|
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<para>The number of the video input is out of bounds.</para>
|
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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@ -159,22 +159,5 @@ to add them.</para>
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<refsect1>
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&return-value;
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<variablelist>
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<varlistentry>
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<term><errorcode>EINVAL</errorcode></term>
|
||||
<listitem>
|
||||
<para>This ioctl is not supported.</para>
|
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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<!--
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@ -76,25 +76,9 @@ negotiating any other parameters.</para>
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<term><errorcode>EINVAL</errorcode></term>
|
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<listitem>
|
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<para>The number of the video output is out of bounds, or
|
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there are no video outputs at all and this ioctl is not
|
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supported.</para>
|
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EBUSY</errorcode></term>
|
||||
<listitem>
|
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<para>I/O is in progress, the output cannot be
|
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switched.</para>
|
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there are no video outputs at all.</para>
|
||||
</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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</refentry>
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<!--
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||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
||||
<!--
|
||||
Local Variables:
|
||||
mode: sgml
|
||||
sgml-parent-document: "v4l2.sgml"
|
||||
indent-tabs-mode: nil
|
||||
End:
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -177,4 +177,7 @@
|
|||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
<refsect1>
|
||||
&return-value;
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
|
|
|||
|
|
@ -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:
|
||||
-->
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче