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media: dmx-fread.rst: specify how DMX_CHECK_CRC works 

In the past, the documentation used to say that, if a CRC error
was found, a "-ECRC" error would be returned. That's not true:
the DVB core will just silently ignore such errors.

So, add an explicit note about that.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2017-09-01 12:30:16 -04:00
parent 699f19e3f1
commit 02a3c98c6b
1 changed files with 7 additions and 0 deletions
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Documentation/media/uapi/dvb/dmx-fread.rst
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@ -38,6 +38,13 @@ data. The filtered data is transferred from the driver’s internal
circular buffer to buf. The maximum amount of data to be transferred is
implied by count.
.. note::
if a section filter created with
:c:type:`DMX_CHECK_CRC <dmx_sct_filter_params>` flag set,
data that fails on CRC check will be silently ignored.
Return Value
------------