[media] v4l: Document EACCES in VIDIOC_[GS]_CTRL and VIDIOC_{G, S, TRY}_EXT_CTRLS
VIDIOC_S_CTRL and VIDIOC_S_EXT_CTRLS return EACCES when setting a read-only control VIDIOC_TRY_EXT_CTRLS when trying a read-only control and VIDIOC_G_CTRL and VIDIOC_G_EXT_CTRLS when getting a write-only control. Document this. Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -117,6 +117,13 @@ because another applications took over control of the device function
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this control belongs to.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EACCES</errorcode></term>
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<listitem>
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<para>Attempt to set a read-only control or to get a
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write-only control.</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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@ -294,6 +294,13 @@ The field <structfield>size</structfield> is set to a value that is enough
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to store the payload and this error code is returned.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><errorcode>EACCES</errorcode></term>
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<listitem>
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<para>Attempt to try or set a read-only control or to get a
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write-only control.</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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