Mailing List Archive: MythTV: Users

FC3, HD3000, and udev

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mercury.morris at gmail

Nov 30, 2004, 7:35 AM

Post #1 of 6 (2699 views)
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FC3, HD3000, and udev

I'm trying to write some rules for placement in the directory

/etc/udev/rules.d

for a HD3000 card.

The card and its drivers installed without too much trouble
on a new Fedora Core 3 system and the card actually works.
It's possible to watch live HDTV and record HDTV programs
on the disk.

Of course, this relative ease comes from the minstall script
included with the drivers. The script creates /dev/dtv[0-3],
a symlink for /dev/dtv, etc. But once the machine is shut
down and re-booted, the /dev/dtv's are all gone.

A temporary solution is to re-run (part of) the minstall script.
A more permanent solution would be to write some udev rules
so that the devices are present when the systems finishes
booting up.

I have hit dead-end after dead-end reading through all the udev
documentation, including this seemingly helpful webpage

http://www.reactivated.net/udevrules.php

Still, I can't figure out what KEY(s) to use -- I can't even
find out where in the /sys directory tree to find the path
for the udevinfo command.

Have you found a way to get the /dev/dtv devices created
with the correct major and minor nodes? If you have, please
leave a clue in this thread. I'll keep trying to figure out how
to write some rules, even if I have to just 'trial-and-error' until
something works. And I'll post any progress here, too.

Thanks for any help you might be able to find.

--
MM

neil-on-mythtv at restricted

Nov 30, 2004, 7:51 AM

Post #2 of 6 (2600 views)
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Re: FC3, HD3000, and udev [In reply to]

Hello,

Mercury Morris writes:

> I'm trying to write some rules for placement in the directory
>
> /etc/udev/rules.d
>
> for a HD3000 card.
>
> The card and its drivers installed without too much trouble
> on a new Fedora Core 3 system and the card actually works.
> It's possible to watch live HDTV and record HDTV programs
> on the disk.

This is very interesting. Where are you watching, PC or HDTV set? What cards
are installed on your box? What is the specs?

Thanks,

Neil
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neil-on-mythtv at restricted

Nov 30, 2004, 7:51 AM

Post #3 of 6 (2586 views)
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Re: FC3, HD3000, and udev [In reply to]

doug at ties

Nov 30, 2004, 7:58 AM

Post #4 of 6 (2609 views)
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Re: FC3, HD3000, and udev [In reply to]

Mercury Morris wrote:
> I'm trying to write some rules for placement in the directory
>
> /etc/udev/rules.d
>
> for a HD3000 card.

I have (on Debian) a file /etc/udev/rules.d/pchdtv.rules as follows:
KERNEL="video32" SYMLINK="dtv0"
KERNEL="video33" SYMLINK="dtv1"
KERNEL="video32" SYMLINK="dtv"

This seems to do the trick for me (with my 2 cards).

-Doug

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mercury.morris at gmail

Nov 30, 2004, 9:02 AM

Post #5 of 6 (2611 views)
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Re: FC3, HD3000, and udev [In reply to]

On Tue, 30 Nov 2004 09:51:22 -0600, Neil
<neil-on-mythtv[at]restricted.dyndns.org> wrote:
> Hello,
> Mercury Morris writes:
>
> > I'm trying to write some rules for placement in the directory
> >
> > /etc/udev/rules.d
> >
> > for a HD3000 card.
> >
> > The card and its drivers installed without too much trouble
> > on a new Fedora Core 3 system and the card actually works.
> > It's possible to watch live HDTV and record HDTV programs
> > on the disk.
>
> This is very interesting. Where are you watching, PC or HDTV set? What cards
> are installed on your box? What is the specs?
>

Very interesting indeed. After all the troubles with trying to
install a HD3000 into a working MythTV system, I gave up
and built a new system. Eventually, someone will resolve
the tuner conflicts and we can all mix HD3000s with PVR250s.
But not today.

What am I watching? Just a small window on the monitor for now.
I could try to hook up the S-Video output from the FX5200 card to
the Audio/Video receiver - but that probably won't work.

Another idea is to use a VGA conversion device - I forget the
names of any right now, and hook that up. Watching and
recording HDTV right now is low priority. I just want to get
the box working smoothly, steadily, consistently. Then I'll
decide whether to go back to MythTV, or just write some
PerlTk scripts to manage recording and playback.

I have no use whatsoever for the TV Guide data from Zap2it.
All I want is a VCR replacement, that can handle NTSC as well
as ATSC.

After weeks of frustration and discouragement, yesterday was
quite a triumph - HDTV - in the house - for the first time - on a PC!

There is only one card installed - a HD3000. The specs? The CPU
is an AMD Athlon XP 3200+, 1GB main memory, A7N8X-E Deluxe
motherboard. If you want to know how to form commands for
watching TV, recording TV, etc., that is too much to write here.

I have used getatsc combined with mplayer to watch live HDTV.
The xine-hd package included with HD3000 drivers scares me,
won't even try to install it. mplayer alone will play recorded programs.
Finding all the settings and options for sound is quite a trip, a fun trip
in the end.

I also used dtvstream - Google for it and download it. Very nice,
with a good set of options for recording using the cron facility.

--
MM

mercury.morris at gmail

Nov 30, 2004, 9:12 AM

Post #6 of 6 (2615 views)
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Re: FC3, HD3000, and udev [In reply to]

On Tue, 30 Nov 2004 10:58:19 -0500, Doug Larrick <doug[at]ties.org> wrote:
> Mercury Morris wrote:
> > I'm trying to write some rules for placement in the directory
> >
> > /etc/udev/rules.d
> >
> > for a HD3000 card.
>
> I have (on Debian) a file /etc/udev/rules.d/pchdtv.rules as follows:
> KERNEL="video32" SYMLINK="dtv0"
> KERNEL="video33" SYMLINK="dtv1"
> KERNEL="video32" SYMLINK="dtv"
>
> This seems to do the trick for me (with my 2 cards).
>

AHA! Thank you so much! After more reading and testing,
I now see why the above rules work, for you.

After issuing the following command (on my system)

modprobe cx8800

new entries were created in the /dev/tree. Here they are:

/dev/video0
/dev/vbi0
/dev/video32
/dev/i2c-0

>From there, I was able to issue several udevinfo commands
and now I have enough information to continue on the path to
writing rules for my system.

Thanks again for some real-world examples of udev rules.

--
MM

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