[mythtv-users] How to make static device nodes for video capture cards in MythTV .22?

[Dave]

On Wed, Dec 9, 2009 at 12:03 PM, John Drescher <drescherjm at gmail.com> wrote:

> On Wed, Dec 9, 2009 at 11:58 AM, Dave <dave at davestechshop.net> wrote:
> >
> >
> > On Wed, Dec 9, 2009 at 11:44 AM, Kevin Kuphal <kkuphal at gmail.com> wrote:
> >>
> >> On Wed, Dec 9, 2009 at 10:02 AM, Dave <dave at davestechshop.net> wrote:
> >> >
> >> > I am running Mythbuntu 9.10 with 1 PVR150 and 1 HVR850. When I reboot,
> >> > the PVR150 is changing device nodes. I tried the script mentioned in
> this
> >> > thread (http://ubuntuforums.org/showthread.php?t=753434) and I do get
> a
> >> > symlink, but I do not see the new static device node as an option in
> myth
> >> > backend setup.
> >> >
> >> > Does this "Ubuntu Jaunty" script work in Mythbuntu 9.10 / MythTV .22?
> >> >
> >> > Is there a better solution yet?
> >> >
> >> > What can I do now, other than not reboot? ;)
> >>
> >> The hard way: write udev rules
> >> This has always troubled me
> >>
> >> Easy way (for me): Add an option line to your ivtv module in
> modprobe.conf
> >> options ivtv ivtv_first_minor=1
> >>
> >> This will cause ivtv to always take /dev/video1 (double check with a
> >> google search to see if ivtv_first_minor is 0 based) and should leave
> >> /dev/video0 for your other card
> >>
> >> Kevin
> >>
> > Thanks for your reply.
> >
> > I did already make a udev rule (using the python script at the link I
> > provided).
> >
> > Here's my rule:
> > KERNEL=="video*", ATTR{name}=="ivtv0 encoder MPG",
> ATTRS{vendor}=="0x4444",
> > KERNELS=="0000:01:04.*", SYMLINK+="video_PVR150"
> >
> > I added this rule to /etc/udev/rules.d/60-symlinks.rules
> >
> > I expected to see /dev/video_PVR150 as a choice in myth backend setup.
> > However, it is not there, even after a reboot.
> >
> > Can anyone say whether this is a MythTV .22 issue or a mistake in my rule
> or
> > something else? Thanks.
> >
>
> Here is what I have for my pvr500 to keep it from messing with my kworld
> 115
>
> # cat 60-ivtv.rules
> #DRIVER=="ivtv",KERNELS=="0000:02:08.0", SYMLINK+="pvr_150"
>
> ATTR{name}=="ivtv0 encoder MPG", SYMLINK+="pvr_150"
> KERNEL=="video?",SUBSYSTEM=="video4linux",ATTR{name}=="ivtv0 encoder
> MPG", SYMLINK+="v4l/video0"
> KERNEL=="video?",SUBSYSTEM=="video4linux",ATTR{name}=="ivtv1 encoder
> MPG", SYMLINK+="v4l/video1"
> KERNEL=="video??",SUBSYSTEM=="video4linux",ATTR{name}=="ivtv0 encoder
> PCM", SYMLINK+="v4l/video24"
> KERNEL=="video??",SUBSYSTEM=="video4linux",ATTR{name}=="ivtv1 encoder
> PCM", SYMLINK+="v4l/video25"
> KERNEL=="video??",SUBSYSTEM=="video4linux",ATTR{name}=="ivtv0 encoder
> YUV", SYMLINK+="v4l/video32"
> KERNEL=="video??",SUBSYSTEM=="video4linux",ATTR{name}=="ivtv1 encoder
> YUV", SYMLINK+="v4l/video33"
>
> John
>
>
> Thanks. Based on what I see in your rules, I think I'll try changing mine
to this:

KERNEL=="video*", ATTR{name}=="ivtv0 encoder MPG", SYMLINK+="video_PVR150"

It looks to me like you are saying your original (commented out) rule was
too restrictive (too specific). Is that what you found?
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