[mythtv-users] udev and DVB problems

[David Watkins]

On 10/04/07, Piers Kittel <mythtv at biased.org> wrote:
> Hello all,
>
> Am moving my mythtv stuff (recordings, database, DVB card etc) to new
> hardware, but am having a nasty problem making me tear my hair out.
>
> Anyway.  I've got 2 x Nova-T DVB-T tuners.  The new hardware is
> running Debian Etch 4.0 installed yesterday.  I compiled kernel
> 2.6.20-6 with the stock kernel's DVB drivers built in as a module.
> The module gets loaded and both DVB cards are detected fine.  So I go
> to test the DVB card using the following command:


I'm not sure what you mean by 'built in as a module.  I thought kernel
drivers are either 'built in' OR a module.

Using a Fedora system with Nova-T DVB-T tuners, loading the cx88_dvb
module created the /dev/dvb/frontend devices.  I had to muck around
with udev to get the permissions right, but the devices did get
created properly.

Not sure if this is related but, with Fedora FC^, the upgrade from
2.6.19 to 2.6.20 broke the automatic loading of the CX88_dvb module
and I had to modprobe it to get it to load, and going back further
into the past I had a couple of systems that would automatically load
the 'blackbird' dvb driver by mistake, which I had to blacklist.  So
it might be that your dvb drivers aren't correctly loading,
particularly as 2.6.20 seems to have a problem with dvb_cx88.

> So I check /dev, sure enough, there's no directory named "dvb" in there.

For me, that's always meant the dvb driver module hasn't loaded.

HTH