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Bug 162239 - Kernel patch for S-Video/Composite-Input of the Terratec Cinergy 1400 DVB-T
Summary: Kernel patch for S-Video/Composite-Input of the Terratec Cinergy 1400 DVB-T
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: All Linux
: High enhancement (vote)
Assignee: Daniel Drake (RETIRED)
Depends on:
Reported: 2007-01-15 17:57 UTC by Heiko Baums
Modified: 2007-01-29 18:18 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

cx88-cards.c.diff (cx88-cards.c.diff,478 bytes, patch)
2007-01-15 17:59 UTC, Heiko Baums
Details | Diff
cx88-cards.c.patch (cx88-cards.c.patch,482 bytes, patch)
2007-01-21 05:01 UTC, Heiko Baums
Details | Diff

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Description Heiko Baums 2007-01-15 17:57:47 UTC
Please, apply the attached patch to the kernel, at least to gentoo-sources.

The file /usr/src/linux/drivers/media/video/cx88/cx88-cards.c needs to be patched to get the combined S-Video/Composite input of the Terratec Cinergy 1400 DVB-T working.

The patch I've made is for gentoo-sources-2.6.19-r4.

It would be nice if this would also go into the other kernel sources.

Btw, ".vmux = 2" is in both cases correct because this DVB-T card has only one input which is a combined S-Video/Composite input. How the input source has to be interpreted has to be set by the parameters/options of the capturing software like tvtime or mplayer.

The picture quality for me is not the best but I don't know if and I don't think that this is kernel related. But maybe someone can have a look at this, too, if this can be tuned in the kernel.

I don't know the functions of the gpio values in some of the other card descriptions in this file. So I don't know if it's necessary to set such a gpio value and to which value it has to be set to. But I'm getting a picture without it.
Comment 1 Heiko Baums 2007-01-15 17:59:05 UTC
Created attachment 107079 [details, diff]

The kernel patch to get the combined S-Video/Composite input of the Terratec Cinergy 1400 DVB-T working.
Comment 2 Jakub Moc (RETIRED) gentoo-dev 2007-01-15 18:30:31 UTC
This needs to be submitted upstream, not to Gentoo...
Comment 3 Daniel Drake (RETIRED) gentoo-dev 2007-01-15 18:46:39 UTC
Are you the author of this patch?
Comment 4 Heiko Baums 2007-01-15 19:15:32 UTC
Over a year ago I've found a similar patch for an older kernel version somewhere in a forum in the internet. I don't know where anymore.

Because I haven't saved the patch and need this function again I just rewrote it from what I remembered. So principally I am the author of this patch but it depends on another possibly slightly different patch.
Comment 5 Heiko Baums 2007-01-15 21:35:42 UTC
Filed a bug report upstream:
Comment 6 Heiko Baums 2007-01-21 05:01:54 UTC
Created attachment 107627 [details, diff]

A slightly modified patch as asked by upstream's documentation for submitting patches.
Comment 7 Daniel Drake (RETIRED) gentoo-dev 2007-01-21 18:04:00 UTC
patch accepted upstream
Comment 8 Matthias Schwarzott gentoo-dev 2007-01-22 09:58:28 UTC
You could use v4l-dvb-hg until patch makes it into an official kernel-version.
Comment 9 Heiko Baums 2007-01-22 10:17:22 UTC
If you mean me, I know. Because I have written this patch it's already in my kernel. ;-)

For any other people of course you are right.
Comment 10 Daniel Drake (RETIRED) gentoo-dev 2007-01-29 18:18:02 UTC
Fixed in gentoo-sources-2.6.19-r5