[alsa-devel] [PATCH 2/8] firmware: Sigma: Skip header during CRC generation

Lars-Peter Clausen lars at metafoo.de
Fri Nov 25 09:55:42 CET 2011


On 11/24/2011 06:21 PM, Mike Frysinger wrote:
> On Thursday 24 November 2011 07:48:21 Lars-Peter Clausen wrote:
>> The firmware header is not part of the CRC, so skip it. Otherwise the
>> firmware will be rejected due to non-matching CRCs.
> 
> that's because you didn't compare to the right value ;).  include the CRC -> 
> compare to 0.  omit the CRC -> compare to the CRC value.

Does this really work if the CRC is inserted somewhere in the middle of the
bytestream?



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