Messages in this thread | | | Subject | Re: drivers/media/video/saa7115.c misreports max. value of contrast and saturation | From | Mauro Carvalho Chehab <> | Date | Wed, 08 Mar 2006 21:21:19 -0300 |
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Em Qui, 2006-03-09 às 00:46 +0100, Adrian Bunk escreveu: > 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? I think you meant 2.6.16 :) Yes, it is. I've already sent an email to Linus for him to pull it, among with some other pending patches. > > > Cheers, > > Mauro. > > cu > Adrian > Cheers, Mauro.
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