Em Sáb, 2007-05-26 às 12:51 +0200, Jan Engelhardt escreveu:
> On May 25 2007 23:33, Takashi Iwai wrote:
> >
> >Yeah, I'll check it again if reposted. Jan, could you split ALSA
> >portins at the next time?
>
> How much split? This time, I made four out of it.
>
> >This will make testing and merging much
> >easier for me...
> >
> >But, above all, I'm not convinced much by that patch, especially
> >because it introduces new kconfigs just for menuconfig.
> >For example, CONFIG_SND_PCI_DRIVERS doesn't appear in any Makefiles.
>
> Neither is/was CONFIG_DVB IIRC. The world does not stop turning just
> because there are now extra options. If you want the functionality
> of menuconfigs without introducing some variable to store their state,
> well, I think that's going to be a bigger kconf patch. (Just think of
> compatibility of the .config format.)
I suspect that kconf is not properly handing the newer way for
menuconfig. Maybe this is the same stuff that happened on ALSA.
We have some stuff like this:
menuconfig VIDEO_CAPTURE_DRIVERS
bool "Video capture adapters"
depends on VIDEO_DEV
if VIDEO_CAPTURE_DRIVERS
config VIDEO_VIVI
tristate "Virtual Video Driver"
depends on VIDEO_V4L2 && !SPARC32 && !SPARC64 && PCI
select VIDEO_BUF
endif #VIDEO_CAPTURE_DRIVERS
config VIDEO_BUF
depends on PCI
tristate
Before adding menuconfig, VIDEO_VIVI were dependent on VIDEO_DEV. After
the patch, what happens is that:
if
VIDEO_DEV='m' and VIDEO_CAPTURE_DRIVERS='y' and VIDEO_VIVI='m'
then
VIDEO_BUF='y'
But, as video-buf is dependent on video-core (compiled as a module,
since VIDEO_DEV='m'), it is generating compilation errors.
To fix it, I needed to add an explicit dependency on VIDEO_VIVI (and
also on VIDEO_SAA7146_VV):
http://linuxtv.org/hg/v4l-dvb?cmd=changeset;node=5cd49ffd9004;style=gitweb
I didn't looked inside kconf, but it seems that it is not checking that,
as VIDEO_CAPTURE_DRIVERS depends on VIDEO_DEV, all drivers inside the
"if" should also depend on VIDEO_DEV.
Cheers,
Mauro
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