Re: [PULL] http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-vpfe-cap

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Em Tue, 30 Jun 2009 10:06:17 -0500
"Karicheri, Muralidharan" <m-karicheri2@xxxxxx> escreveu:

> >> - tvp514x: Migration to sub-device framework
> >
> >As already pointed, here we have those comments regression. Also, some
> >functions were changed, but the comments still mentions the older
> >parameters.
> >Please fix it on a later patch.
> >
> I had sent a patch to fix the comment formatting. If you wish, you could apply it and wait for another that fix the old parameter descriptions.

Fine. It would be better if Hans could add this on his tree, for me to import
it together with the other patches.

> >Hmm...
> >
> >+#define CCDC_CID_R_GAIN                (V4L2_CID_PRIVATE_BASE + 0)
> >+#define CCDC_CID_GR_GAIN       (V4L2_CID_PRIVATE_BASE + 1)
> >+#define CCDC_CID_GB_GAIN       (V4L2_CID_PRIVATE_BASE + 2)
> >+#define CCDC_CID_B_GAIN        (V4L2_CID_PRIVATE_BASE + 3)
> >
> >This is not nice. Such gains are common to other webcam drivers, and should
> >be
> >part of the common part of V4L2 API.
> >
> >In fact, currently, we have it mapped as a general gain as red/blue balance.
> >
> >+#define CCDC_CID_OFFSET        (V4L2_CID_PRIVATE_BASE + 4)
> >
> >What does it control?
> This is to adjust the black level I suppose. But I will re-visit it when I do control IOCTL handling as per Hans comment against the patch.

In the specific case of the userspace API changes like the above, I prefer to
have it merged at the original patch



Cheers,
Mauro
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