Re: drivers/media/video/saa7115.c misreports max. value of contrast and saturation

[Adrian Bunk <bunk@stusta.de>]

On Wed, Mar 08, 2006 at 07:47:43PM -0300, Mauro Carvalho Chehab wrote:
> Adrian,
> 
> 
> Em Qua, 2006-03-08 às 22:19 +0100, Adrian Bunk escreveu:
> > On Wed, Feb 15, 2006 at 12:19:08AM -0500, Kyler Laird wrote:
> > 
> > > For changes to V4L2_CID_CONTRAST and V4L2_CID_SATURATION, the value is
> > > checked by "if (ctrl->value < 0 || ctrl->value > 127)" yet the maximum
> > > value in v4l2_queryctrl is set to 255 for both of these items.  This
> > > means that programs (like MythTV) which set the contrast and saturation
> > > to the midvalue (127) get *full* contrast and saturation.  (It's not
> > > pretty.)
> > > 
> > > Setting the maximum values to 127 solves this problem.
> > 
> > Mauro, can you comment on this issue?
> Yes. Patch is already available at both git and mercurial trees, fixing
> it for saa7115 and cx25840:
> 
> http://linuxtv.org/hg/v4l-dvb?cmd=changeset;node=b77c2f933b620bccaa751d556c1aa2fca30de7ec;style=gitweb

This patch seems to be 2.1.16 stuff?

> Cheers, 
> Mauro.

cu
Adrian

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