On Monday 13 November 2006 01:28, Jelle wrote:
> Hi,
>
> The wiki page 'Firmware' instructs people to copy HcwFalcn.rom to
> v4l-cx2341x-enc.fw, but HcwFalcn.rom is 376836 bytes, only the first
> 256K contain actual ivtv firmware (the rest is (mainly) zeroes). With
> the latest trunk, and (I think) also with the svn head of 0.8, that
> will give a firmware file that the driver can't load, plus the
> blackbird driver also checks the firmware for size, so when using
> those instructions to create firmware for use with those drivers, it
> won't work (I think).
>
> I think the instructions should include something like 'dd
> if=HcwFalcn.rom of=v4l-cx2341x-enc.fw bs=1024 count=256' to show
> people how to take the first 256K only.
>
> http://www.ivtvdriver.org/index.php/Firmware
>
> Or is the 376836 byte firmware maybe used to zero-out some of the
> ivtv memory? (If that's the case, then maybe the blackbird driver
> shouls allow the larger file too and simply upload the trailing
> (mainly) zeros too).
The extra padding consists of garbage bytes. Starting with ivtv-0.9 the
driver requires an exact match of 256 K. ivtv-0.8 and previous should
still accept the larger fw.
More important perhaps is that the link to the firmware.tar.gz file is
made more prominent.
Hans
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