I recently posted my udev rules here: http://www.gossamer-threads.com/lists/mythtv/users/380947#380947That helped me resolve inconsistent /dev/video* numbering on cold/warm reboots with a PVR-500 and HVR-1600 in my system.
There's also much more info here that should allow you to make udev rules for any arbitrary set of tuners: http://www.mythtv.org/wiki/Device_Filenames_and_udev Matt 2009/5/13 Warpme <[email protected]> > Hi * > > Recently I added DVB-T card to my KnopMyth R5F27 based backend. > My backend is: > -r5f27 + ivtv 10.0.1 > -3x hauppauge pvr250 > -1x hauppauge Nova-T (recently added) > > Issue is that sometimes (every few reboots/restarts) one analog card is > unavailable. > Scanning dmesg shows me that in fully working backend I have: > > r...@mythtv:~# dmesg | grep -i video > Boot video device is 0000:01:00.0 > Linux video capture interface: v2.00 > cx88[0]/0: registered device video0 [v4l2] > ivtv0: Registered device video1 for encoder MPG (4096 kB) > ivtv0: Registered device video32 for encoder YUV (2048 kB) > ivtv0: Registered device video24 for encoder PCM (320 kB) > ivtv1: Registered device video2 for encoder MPG (4096 kB) > ivtv1: Registered device video33 for encoder YUV (2048 kB) > ivtv1: Registered device video25 for encoder PCM (320 kB) > ivtv2: Registered device video3 for encoder MPG (4096 kB) > ivtv2: Registered device video34 for encoder YUV (2048 kB) > ivtv2: Registered device video26 for encoder PCM (320 kB) > > > When system boots with unavailable card - in dmesg I see first pvr250 and > dvb-t having swapped video devices (pvr250 has assigned to video0 and dvb-t > assigned to video1). > It is obvious that in such case backend can't access pvr250 card as it has > video[x] device different than declared in myth config. > > Problem start to manifest after adding dvb-t card. > In my system all my pvr250 cards are declared as ivtv devices, while dvb-t > seems to be served by v4l layer. > Maybe this is source of my problems as I have 2 diferent subsystems (ivtv > and v4l) which are concurrently inicializing my hardware ?. > I was trying to setup pvr250 cards as v4l devices - but result is black > screen from pvr250 sources. > > Do somebody has advice how to resolve this issue ? > > thx in advance > > > _______________________________________________ > mythtv-users mailing list > [email protected] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > >
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