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Commit f9611240 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] DocBook: in non-blocking mode return EAGAIN in hwseek 



VIDIOC_S_HW_FREQ_SEEK should return EAGAIN when called in non-blocking
mode. This might change in the future if we add support for this in the
future, but right now this is not supported.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 6473262e

Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml

+10 −0
Original line number Diff line number Diff line
@@ -75,6 +75,9 @@ seek is started.</para> 


    <para>This ioctl is supported if the <constant>V4L2_CAP_HW_FREQ_SEEK</constant> capability is set.</para>



    <para>If this ioctl is called from a non-blocking filehandle, then &EAGAIN; is

    returned and no seek takes place.</para>



    <table pgwide="1" frame="none" id="v4l2-hw-freq-seek">

      <title>struct <structname>v4l2_hw_freq_seek</structname></title>

      <tgroup cols="3">
@@ -157,6 +160,13 @@ one of the values in the <structfield>type</structfield>, 
fields is wrong.</para>

	</listitem>

      </varlistentry>

      <varlistentry>

	<term><errorcode>EAGAIN</errorcode></term>

	<listitem>

	  <para>Attempted to call <constant>VIDIOC_S_HW_FREQ_SEEK</constant>

	  with the filehandle in non-blocking mode.</para>

	</listitem>

      </varlistentry>

      <varlistentry>

	<term><errorcode>ENODATA</errorcode></term>

	<listitem>