[mythtv-users] Trouble with DVB-C card, only partially recognized

[Robert McNamara]

On Fri, Feb 25, 2011 at 12:00 PM, Jurgen Kramer <gtmkramer at xs4all.nl> wrote:
> On Fri, 2011-02-25 at 10:41 -0800, Robert McNamara wrote:
>> On Fri, Feb 25, 2011 at 10:24 AM, Jurgen Kramer <gtmkramer at xs4all.nl> wrote:
>> > On Fri, 2011-02-25 at 10:02 -0800, Robert McNamara wrote:
>> >> On Fri, Feb 25, 2011 at 9:59 AM, Jurgen Kramer <gtmkramer at xs4all.nl> wrote:
>> >> > Hi,
>> >> >
>> >> > Today I added an additional Mystique CaBiX-C2 (KNC-ONE clone) PCI DVB-C
>> >> > card to my MythTV setup. The card is only partially recognized by
>> >> > MythTV, in mythtv-setup it shows an
>> >> > additional /dev/dvb/adapterX/frontendX but without the
>> >> > accompanying /dev/videoX. Checking kernel messages reveals it does not
>> >> > register the /dev/video component.
>> >>
>> >>
>> >> /dev/video nodes are for analog devices.  Your card is a digital tuner.
>> >>
>> > Thanks for the quick reply. It seems /dev/video devices are still
>> > created for the digital cards. I currently have two working cards:
>> >
>> > [   12.317141] Linux video capture interface: v2.00
>> > [   12.559484] saa7146_vv: saa7146 (0): registered device video0 [v4l2]
>> > [   12.969262] saa7146_vv: saa7146 (1): registered device video1 [v4l2]
>> >
>> > AFAIK digital videocard still use /dev/video to get the (digital)
>> > stream.
>>
>> No, that is not correct.  /dev/dvb/frontend# is used for digital
>> devices.  No /dev/video is necessary, /dev/video is for analog devices
>> *only*.
>>
> OK, I just put one of the working cards in my test machine and presto,
> a /dev/videoX device is created and tvtime and the likes are happy. My
> conclusion is that there definitely something amiss with my new card.
> Too bad, will have to RMA it.
>
> Jurgen

Your other card is a hybrid card (ie, it has analog hardware as well).

I promise I'm not making this all up.  The video node is *only*
relevant to analog hardware.  The device you are having the "problem"
with is digital only and under no circumstances, *ever* will it have a
/dev/video node.

Don't RMA it.  The card is functioning properly.

Robert