[pvrusb2] cx23416 firmware size

[Mike Isely]

On Mon, 20 Mar 2006, Hans Verkuil wrote:

> On Monday 20 March 2006 03:40, Mike Isely wrote:
>> On Mon, 19 Mar 2007, Wim Bakker wrote:
>>> Mar 19 22:11:31 myhost pvrusb2: size of v4l-cx2341x-enc.fw firmware
>>> must be a multiple of 8192B
>>
>> This is the root cause.  What size is that firmware image?  It should
>> be exactly 256KB.  Did fwextract.pl generate this file?
>
> There are firmware files that are 376836 bytes. These files are the same
> as the normal 256 K files, but padded with (mostly) zeroes. ivtv just
> loads the first 256 K and ignores the remainder.
>

Every firmware image extracted so far from PVR USB2 driver packages has 
been 256KB.  However with the common name now it is possible to encounter 
other files.

But I have to ask, if the extra data is useless and mostly zeroes then 
what possible reason is there to even have it there?  The only reason I 
can see is to further complicate the firmware loading process :-(

   -Mike


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