media: Documentation: media: Update sub-device API intro
Update the V4L2 sub-device userspace API introduction to provide more details on why complex devices might want to register devnodes for the connected subdevices. Acked-by:Sakari Ailus <sakari.ailus@linux.intel.com> Suggested-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Jacopo Mondi <jacopo@jmondi.org> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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