[linux-dvb] How to force adaptor order when using 2 DVB cards?

Eduard Huguet eduardhc at gmail.com
Thu Feb 7 21:14:05 CET 2008


Hi,
    Thank you. This is what I finally did (blacklisting and manually 
loading), as the udev rules have a really "ugly" syntax ;). I found the 
tip in Gentoo wiki and it's working fine now.

Thank you all anyway.
  Eduard




En/na Matthias Schwarzott ha escrit:
> On Donnerstag, 7. Februar 2008, John Drescher wrote:
>   
>> On Feb 7, 2008 11:46 AM, Eduard Huguet <eduardhc at gmail.com> wrote:
>>     
>>> Hi,
>>>     I currently have a media center computer set up using Gentoo 64 bit
>>> and a Hauppauge Nova-T 500 card (dual DVB-T receiver). Now I'm trying to
>>> add a new card (DVB-S), and here my problems begin: not mentioning the
>>> experimental state of the driver (this is a different story that doesn't
>>> matter now), my problem is that the new card porks the order in which
>>> the device nodes were created in /dev. And even worse, the actual order
>>> ing schema is different between a cold boot and rebooting:
>>>
>>> Cold boot:
>>>   · DVB:0: DVB-S tuner from Avermedia A700
>>>   · DVB:1,2: DVB-T tuners from Nova-T
>>>
>>> Reboot:
>>>   · DVB:0: 1st DVB-T tuner from Nova-T
>>>   · DVB:1: DVB-S tuner from A700
>>>   · DVB:2: 2nd DVB-T tuner from Nova-T
>>>
>>> I guess that on a cold boot the Nova-T 500 takes longer to initialize
>>> (due to the firmware being loaded), so its adaptors gets both created
>>> later.
>>>
>>> Is there any way to avoid this? My MythTV setup currently expects to
>>> find the 2 Nova-T 500 adaptors on DVB:0 and DVB:1, and In expected the
>>> new DVB-S adaptor to be created as DVB:2. However, it seems this is not
>>> the case.
>>>
>>> Is there any way to force the numbering schema or the 2 adaptors?
>>>       
>> Create a udev rule.
>>
>> http://reactivated.net/writing_udev_rules.html
>>
>>     
> More people have tried this for dvb and failed as it seems. That would require 
> something like persistent-net.
>
> I suggest you first try blacklisting the modules like described here:
> http://www.gentoo.org/doc/en/udev-guide.xml
>
> Matthias
>
>   
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