[linux-dvb] hvr-1800 status?

Steven Toth stoth at linuxtv.org
Mon Nov 5 16:02:27 CET 2007

Michael Krufky wrote:
> cromworshipper-linuxdvb at yahoo.com wrote:
>> I just picked up this card and I'm looking forward to trying it.  I run Fedora 7 x86_64 2.6.23-1.10.  I guess I'll try the steps as described at http://linuxtv.org/wiki/index.php/How_to_install_DVB_device_drivers and see how it goes.
>> How close are we to getting NTSC to work?  Do I need firmware for this card?
>> Advice and pointers welcome.
> Funny that you should ask about analog mode NTSC just a week or two after we've confirmed that QAM works.  (ATSC has always worked, QAM needed a small patch to fix).
> The NTSC tuner is already supported, but the cx23885 bridge driver does not yet support analog mode.
> I don't know how long that will take, but it shouldn't be too far off.
> You don't need any firmware for the hvr1800.
> Regards,
> Mike

The cx23885 has a modified version of the cx25840 a/v decoder inside it. 
It uses different firmware than the normal cx25840 driver already 
present in Linux. As such, to support analog, I also have to push some 
patches into that driver for the differing registers (and firmware).

Analog preview and analog encoder running well in lab conditions and 
they are pretty stable, but I need to spend quality time cherry picking 
pieces from multiple development trees to build something acceptable to 
the linuxtv community.

Soon, think weeks not days.

- Steve

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