Re: Hauppauge WinTV-HVR-4000 / Nova-HD-S2

[Steven Toth <stoth@linuxtv.org>]

Kevin Wells wrote:
> Jonas Kvinge wrote:
>> Whats the command to extract the firmware from the new driver release at
>> http://www.wintvcd.co.uk/drivers/88x_2_123_27056_WHQL.zip
>>
>> The driver at http://www.wintvcd.co.uk/drivers/88x_2_122_26109_WHQL.zip
>> is no longer available, so the link on
>> http://linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-4000 is broken.
>>   
> Hi Jonas,
> 
> I can't remember the exact command off the top of my head. But I can
> tell you how to work it out.
> 
> The problem is how to determine the offset to use. Look at this hex dump
> from the start of each firmware file:
> 
>     dvb-fe-cx24116-1.20.79.0.fw:
>         00000000  02 11 f9 ec 33 50 03 12
> 
>     dvb-fe-cx24116-1.22.82.0.fw:
>         00000000  02 11 fb ec 33 50 03 12
> 
>     dvb-fe-cx24116-1.23.86.1.fw:
>         00000000  02 12 02 ec 33 50 03 12
> 
> Note the magic `33 50 03 12` bytes that appear at offset 4 in each
> firmware file. You can use that to determine the offset of the firmware
> in the `hcw88bda.sys` file (at least for the existing firmware files).
> 
> I used `hd hcw88bda.sys | more` and typed `/33 50 03 12` in `more` to
> find the offset. Make sure to subtract 4 from the offset of the `33 50
> 03 12` bytes. Convert the offset from hex to decimal and use that as the
> `skip` amount for the `dd` command.
> 
> Verify the extracted firmware using `md5sum`.
> 
> Perhaps when you get it to work you could update the wiki page you
> mentioned.

This:

http://www.steventoth.net/linux/cx24116/