Re: WinTV-NOVA HD-S2 unable to load firmware since register 0x20 is allways 0

[Andreas Stempfhuber <andi@afulinux.de>]

Hello,

Am Sonntag, 20. Juni 2010 schrieb Andreas Stempfhuber:
> Hello,
>
> I bought a brandnew Hauppauge WinTV-NOVA HD-S2 which does not load the
> firmware since the value of register 0x20 is allways 0x00. After changing
> the cx24116 driver to not check register 0x20, the firmware is loaded and
> the card works as expected (DVB-S, audio and remote control).
[...]

I did a few additional tests and there seems to be only an issue with brandnew 
cards which have never before got a firmware uploaded. As on my card register 
0x20 allways returned 0 with different kernel and driver versions and several 
reboots.

After forcing a firmware upload by modifying the driver to not check the state 
of register 0x20, the issue no longer exists. If I now reboot or power cycle 
the PC, register 0x20 returns values unequal 0 and the original driver works 
as expected.

It seems to me that relying on register 0x20 for firmware uploads is not 
stable as a brandnew card may return 0 until it got the first firmware 
uploaded.

Regards,

Andreas

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