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media: Documentation: Fix [GS]_ROUTING documentation
[ Upstream commit997a6b01cd
] Add mention that successful VIDIOC_SUBDEV_G_ROUTING call will update 'num_routes' and remove mention about non-existing streams, which is incorrect. Fixes:ea73eda508
("media: Documentation: Add GS_ROUTING documentation") Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 4 additions and 3 deletions
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@ -58,6 +58,9 @@ the subdevice exposes, drivers return the ENOSPC error code and adjust the
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value of the ``num_routes`` field. Application should then reserve enough memory
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value of the ``num_routes`` field. Application should then reserve enough memory
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for all the route entries and call ``VIDIOC_SUBDEV_G_ROUTING`` again.
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for all the route entries and call ``VIDIOC_SUBDEV_G_ROUTING`` again.
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On a successful ``VIDIOC_SUBDEV_G_ROUTING`` call the driver updates the
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``num_routes`` field to reflect the actual number of routes returned.
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.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
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.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
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.. c:type:: v4l2_subdev_routing
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.. c:type:: v4l2_subdev_routing
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@ -138,9 +141,7 @@ ENOSPC
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EINVAL
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EINVAL
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The sink or source pad identifiers reference a non-existing pad, or reference
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The sink or source pad identifiers reference a non-existing pad, or reference
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pads of different types (ie. the sink_pad identifiers refers to a source pad)
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pads of different types (ie. the sink_pad identifiers refers to a source pad).
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or the sink or source stream identifiers reference a non-existing stream on
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the sink or source pad.
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E2BIG
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E2BIG
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The application provided ``num_routes`` for ``VIDIOC_SUBDEV_S_ROUTING`` is
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The application provided ``num_routes`` for ``VIDIOC_SUBDEV_S_ROUTING`` is
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