[mythtv-users] Second PVR not seen my MythTVSetup, possible permission problem?

Brian Wood beww at beww.org
Wed Mar 11 21:21:17 UTC 2009


Here's a new one for me:

Trying to add 2 PVR-150s to a newly built machine.

The first card (/dev/video0) works just fine.

I can't add the second card, usually I can just scroll through the available 
devices, but I can only get /dev/video0. If I manually set it to video1 it 
says it can't open the card.

Boot logs show both cards being initialized normally.

Both devices appear to be there:

ls -l /dev/vid*
lrwxrwxrwx  1 root root      6 2009-03-10 17:41 /dev/video -> video0
crw-rw----+ 1 root root 81,  0 2009-03-10 17:41 /dev/video0
crw-rw----  1 root root 81,  1 2009-03-10 17:41 /dev/video1
crw-rw----+ 1 root root 81, 24 2009-03-10 17:41 /dev/video24
crw-rw----  1 root root 81, 25 2009-03-10 17:41 /dev/video25
crw-rw----  1 root root 81, 32 2009-03-10 17:41 /dev/video32
crw-rw----  1 root root 81, 33 2009-03-10 17:41 /dev/video33

This looks correct to me, except:

I don't understand what the "+" is after the video0 device. I don't think it's 
the suid bit, or any of the things I'm familiar with.

But the device with the "+" works, the one without it does not. I'd just add 
the "+", if I had any idea what it might be.

This is a Fedora 10 machine, does Fedora handle permission listings 
differently somehow?

I can cat /dev/video0 or cat /dev/video1 (as root) and get data dumped as 
usual from both devices.

It's not an interrupt contention problem:

cat /proc/interrupts
           CPU0       CPU1
 20:       1229     131882   IO-APIC-fasteoi   ivtv0
 21:          0        402   IO-APIC-fasteoi   ivtv1
 

Any ideas appreciated, as usual.

-- 
beww
beww at beww.org


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