[mythtv-users] UDEV rules

[Yianni]

> daryl at daryl-A780L3C:~$ ls -lah /dev/video*
> crw-rw----+ 1 root video 81, 0 Jan 22 10:26 /dev/video0
> crw-rw----+ 1 root video 81, 5 Jan 22 10:26 /dev/video1
> crw-rw----+ 1 root video 81, 7 Jan 22 10:27 /dev/video2
> crw-rw----+ 1 root video 81, 3 Jan 22 10:26 /dev/video24
> crw-rw----+ 1 root video 81, 1 Jan 22 10:26 /dev/video32
> lrwxrwxrwx  1 root root      6 Jan 22 10:26 /dev/videopvr150 -> video0

Ok, the last one I've not seen before (not that I've extensive experience, but...)



> Apparently I still don't get writing UDEV rules. I have three cards
> which support five recording formats; video0, video1, video2,
> adapter0, and adapter1. Because video0 has a working rule, info from
> the terminal is for the four remaining formats:

Let's try again, taking into account George's suggestion for the vendor instead of subsystem_vendor:

SUBSYSTEM=="video4linux",ATTRS{vendor}=="0x4444",ATTRS{device}=="0x0016",SYMLINK+="videopvr150",GROUP="video"
SUBSYSTEM=="video4linux",ATTRS{vendor}=="0x14f1",ATTRS{device}=="0x8852",SYMLINK+="analog1250",GROUP="video"
SUBSYSTEM=="video4linux",ATTRS{vendor}=="0x1131",ATTRS{device}=="0x1733",SYMLINK+="videoKworld",GROUP="video"
SUBSYSTEM=="dvb",ATTRS{vendor}=="0x14f1",ATTRS{device}=="0x8852",SYMLINK+="computerworks",GROUP="video" 
SUBSYSTEM=="dvb",ATTRS{vendor}=="0x1131",ATTRS{device}=="0x7133",SYMLINK+="digitalPhilips",GROUP="video"

I've reapplied the original rule for the videopvr150 device using vendor. I don't know if I got the names right especially for the last two digitals, feel free to change them.

Try putting them all in the same .rules file (delete the previous rule) and try George's suggestion for testing the rules without rebooting.Execute each line and search for the "DEVLINKS=" line to see if the link will be created.

udevadm test $(udevadm info -q path -n /dev/video0)
udevadm test $(udevadm info -q path -n /dev/video1)
udevadm test $(udevadm info -q path -n /dev/video2)
udevadm test $(udevadm info -q path -n /dev/video24)
udevadm test $(udevadm info -q path -n /dev/video32)
udevadm test $(udevadm info -q path -n /dev/dvb/adapter0/dvr0)
udevadm test $(udevadm info -q path -n /dev/dvb/adapter1/dvr0)
> 
> Further, I didn't do very well with your test George:
> 
> daryl at daryl-A780L3C:~$ udevadm trigger $(udevadm info -q path -n /dev/video0)
> daryl at daryl-A780L3C:~$
> 
The above command doesn't show anything unless you use the --verbose parameter. (try using "udevadm trigger --help" to see the available options)

Yianni.