[mythtv-users] modprobe.conf

Mark Lord mythtv at rtr.ca
Mon Apr 25 12:13:17 UTC 2011

On 11-04-25 07:02 AM, Richard Morton wrote:
> On Apr 25, 2011 1:21 AM, "Ken Smith" <kens at kensnet.org
> <mailto:kens at kensnet.org>> wrote:
>> I have just added a DVB-S2 card to a Centos Myth 0.23 system that
>> already has a PVR 350 and two Nova-T DVB cards.
>> Have I got the syntax right to make sure that the cards initialise as
>> the same devices at boot time.
>> I've got this in modprobe.conf
>> options cx8800 video_nr=1,2,3
>> options ivtv ivtv_first_minor=0
>> Which I think should make the PVR-350 /dev/video0.
>> Does the cx88 setting make sure the three DVB devices come up in the
>> same sequence?
> No. Its just means that cards that report themselves as cx88 will be assigned
> the numbers indicated. In the random order that they willbecome ready the first
> card ready will be allocated the lowest number allowed for that chipset. If they
> all have the same input source this probably won't matter, and this method works
> for me where I have a novat500 a peak dvbT. And a nova S2 hd card. ( in total 2
> dual tuner dvbt cards and a single tuner dvbS2 card).
> It didn't matter when there were just two NovaT's but now
>> the DVB-S card in there it matters.

If you need to guarantee specific cards always get the same device name,
then use either a set of udev rules, or a script like this one:



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