[linux-dvb] hvr-1800 status?

Steven Toth stoth at linuxtv.org
Mon Nov 5 20:26:37 CET 2007


cromworshipper-linuxdvb at yahoo.com wrote:
> On Monday 05 November 2007 07:02:27 am Steven Toth wrote:
>> 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.
> 
> Excellent, thank you Mike.  I'm using an older pvr150 in my shiny new 
> PCI-Express motherboard and I'm looking forward to replacing it with this 
> PCI-Express card.  If I can figure out how to split the cable I'll be able to 
> run both tuners until I can remove the pvr150.
> 
>>> 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).
> 
> Are you saying that I will need firmware to view analog tv?

Yes.

> 
>> 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.
> 
> Judging by my schedule, I might not be able to test this out tonight after 
> all.  Perhaps tomorrow night.  Are you saying that the 
> http://linuxtv.org/hg/v4l-dvb stuff will not have any of your good stuff 
> checked in?

Yes.

> 
>> - Steve
> 
> Thanks for your help.  As you can see, I'm a newb here.  Advice on how to 
> proceed is always welcome.

You're welcome.

Once analog video is running, an patchset/announcement will be made here.

- Steve





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