media: gen-errors.rst: document ENXIO error code
This error can be produced at least at the DVB subsystem. As it is generic enough, document it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@@ -80,6 +80,11 @@ Generic Error Codes
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a hardware device. This could indicate broken or flaky hardware.
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It's a 'Something is wrong, I give up!' type of error.
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- - ``ENXIO``
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- No device corresponding to this device special file exists.
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.. note::
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#. This list is not exhaustive; ioctls may return other error codes.
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