[mythtv-users] Order of tuner cards

Eloy Paris peloy at chapus.net
Thu Apr 15 13:16:56 UTC 2010

On Wed, Apr 14, 2010 at 12:24:58PM +1000, MythTV wrote:


> I use the following solution:
> /etc/modprobe.d/tuner.conf:
> options cx88-dvb adapter_nr=0,1
> options dvb_usb_dib0700 force_lna_activation=1 adapter_nr=2,3
> This ensures the internal PCI (cx88-dvb) are adapters 1 & 2, and the
> USB device is adapters 3 & 4.
> This was an easy solution, but you will need to follow the wiki
> http://mythtv.org/wiki/Device_Filenames_and_udev#Example_DVB_udev_Rules_
> file
> if you want more control.  For example, I have two cards using cx88-dvb,
> and
> the order is not defined in this context, though it is consistent.
> (Its actually defined by the order of the PCI slots, and I can reverse
> them by
>  reversing the cards..)

My solution was to add the following to /etc/modprobe.d/blacklist:

blacklist ivtv
blacklist pwc
blacklist bttv
blacklist cx18

(pwc is for a webcam, but it uses a /dev/videoXX device file.)

This way the modules for the capture cards won't be auto-loaded.

Then, I manually add the modules in the order that I want by specifying
them in /etc/modules:


YMMV with USB capture card; I have never used those.


Eloy Paris.-

More information about the mythtv-users mailing list