doc-rst: rw fix a warning
Fix this Sphinx warning: Documentation/linux_tv/media/v4l/rw:31: WARNING: Literal block ends without a blank line; unexpected unindent. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -23,11 +23,11 @@ setup to exchange data. It permits command line stunts like this (the
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vidctrl tool is fictitious):
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.. code-block:: none
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::
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$ vidctrl /dev/video --input=0 --format=YUYV --size=352x288
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$ dd if=/dev/video of=myimage.422 bs=202752 count=1
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> vidctrl /dev/video --input=0 --format=YUYV --size=352x288
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> dd if=/dev/video of=myimage.422 bs=202752 count=1
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To read from the device applications use the :ref:`read() <func-read>`
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function, to write the :ref:`write() <func-write>` function. Drivers
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must implement one I/O method if they exchange data with applications,
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