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

John Drescher drescherjm at gmail.com
Thu Feb 7 18:01:14 CET 2008


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

John



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