[linux-dvb] A couple HVR-1800 questions

[linux-dvb] A couple HVR-1800 questions

[David Engel]

Hi,

Due to limited PCI slots, I'm thinking of getting a Hauppauge HVR-1800
card when I do some hardware upgrades on my MythTV backend.  I have a
couple of questions regarding the 1800 that I hope someone can answer.

First, what is the status of the analog capture capability?  My search
of the mailing list archives indicates that it was sort of working but
the driver work was not complete.  In addition, from checking the
Mercurial logs, it doesn't look like much new development has been
done since January.

Second, as far as I can tell, the hardware can perform simultaneous
analog and digital captures.  Is that correct and, if so, does/will
the Linux driver support it?

Thanks,
David
-- 
David Engel
david@istwok.net

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Re: [linux-dvb] A couple HVR-1800 questions

[Steven Toth]

David Engel wrote:
> Hi,

Hi David,

> 
> Due to limited PCI slots, I'm thinking of getting a Hauppauge HVR-1800
> card when I do some hardware upgrades on my MythTV backend.  I have a
> couple of questions regarding the 1800 that I hope someone can answer.

:)

> 
> First, what is the status of the analog capture capability?  My search
> of the mailing list archives indicates that it was sort of working but
> the driver work was not complete.  In addition, from checking the
> Mercurial logs, it doesn't look like much new development has been
> done since January.

The analog encoder is running with the tree form linuxtv.org. It has 
some cleanup video ioctl2 rework going on by another dev here, but it's 
functional as is. It's usable today.

> 
> Second, as far as I can tell, the hardware can perform simultaneous
> analog and digital captures.  Is that correct and, if so, does/will
> the Linux driver support it?

Yes and yes.

Typically the analog video devices are exposed as /dev/video0 (analog 
preview) /dev/video1 (encoder output) and /dev/dvb/... for the digital side.

Trying to view analog preview and the encoder at the same time has some 
quirks, best to avoid that but other than that you should be good to go. 
I don't personally use Myth, so if anyone has any MyTh related tips then 
  they should chime in here.

Firmwares and stuff are generally available from 
http://steventoth.net/linux/hvr1800

Regards,

- Steve

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Re: [linux-dvb] A couple HVR-1800 questions

[David Engel]

On Fri, Jun 13, 2008 at 01:16:08PM -0400, Steven Toth wrote:
> David Engel wrote:
>> First, what is the status of the analog capture capability?  My search
>> ...
>
> The analog encoder is running with the tree form linuxtv.org. It has  
> some cleanup video ioctl2 rework going on by another dev here, but it's  
> functional as is. It's usable today.

Thanks for the repsonse, Steven.

>> Second, as far as I can tell, the hardware can perform simultaneous
>> analog and digital captures.  Is that correct and, if so, does/will
>> the Linux driver support it?
>
> Yes and yes.
>
> Typically the analog video devices are exposed as /dev/video0 (analog  
> preview) /dev/video1 (encoder output) and /dev/dvb/... for the digital 
> side.

Excellent.

Regarding the encoder and preview devices, that's different than the
ivtv convention of using /dev/video(N) and and /dev/video(N+16).  Is
there a reason you did it differently and should it be standardized
across drivers?

David
-- 
David Engel
david@istwok.net

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Re: [linux-dvb] A couple HVR-1800 questions

[Steven Toth]

David Engel wrote:
> On Fri, Jun 13, 2008 at 01:16:08PM -0400, Steven Toth wrote:
>> David Engel wrote:
>>> First, what is the status of the analog capture capability?  My search
>>> ...
>> The analog encoder is running with the tree form linuxtv.org. It has  
>> some cleanup video ioctl2 rework going on by another dev here, but it's  
>> functional as is. It's usable today.
> 
> Thanks for the repsonse, Steven.
> 
>>> Second, as far as I can tell, the hardware can perform simultaneous
>>> analog and digital captures.  Is that correct and, if so, does/will
>>> the Linux driver support it?
>> Yes and yes.
>>
>> Typically the analog video devices are exposed as /dev/video0 (analog  
>> preview) /dev/video1 (encoder output) and /dev/dvb/... for the digital 
>> side.
> 
> Excellent.
> 
> Regarding the encoder and preview devices, that's different than the
> ivtv convention of using /dev/video(N) and and /dev/video(N+16).  Is
> there a reason you did it differently and should it be standardized
> across drivers?

Hi david,

This is how the cx88 driver model works. Pfft, who needs standards ;)

- Steve



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