Adam Sampson b3168c87c0 media: usbtv: fix brightness and contrast controls ... Because the brightness and contrast controls share a register, usbtv_s_ctrl needs to read the existing values for both controls before inserting the new value. However, the code accidentally wrote to the registers (from an uninitialised stack array), rather than reading them. The user-visible effect of this was that adjusting the brightness would also set the contrast to a random value, and vice versa -- so it wasn't possible to correctly adjust the brightness of usbtv's video output. Tested with an "EasyDAY" UTV007 device. Fixes: c53a846c48 ("usbtv: add video controls") Signed-off-by: Adam Sampson <ats@offog.org> Reviewed-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>		2017-10-31 07:26:10 -04:00
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Kconfig	[media] usbtv: Make it dependent on ALSA	2014-08-21 15:25:38 -05:00
Makefile	[media] usbtv: add audio support	2014-08-21 15:25:34 -05:00
usbtv-audio.c	media: usb: make snd_pcm_hardware const	2017-08-20 08:05:10 -04:00
usbtv-core.c	media: usb: usbtv: remove duplicate & operation	2017-10-31 07:23:03 -04:00
usbtv-video.c	media: usbtv: fix brightness and contrast controls	2017-10-31 07:26:10 -04:00
usbtv.h	[media] usbtv: add video controls	2016-11-16 13:06:18 -02:00