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media: v4l: ctrls: Add debug messages

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Currently, the v4l2 control code is a bit silent on errors.
Add debug messages on (hopefully) most of the error paths.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Ezequiel Garcia
2019-07-20 07:47:07 -04:00
committed by Mauro Carvalho Chehab
parent d4a6a9537b
commit 173f6eacc8
7 changed files with 127 additions and 39 deletions
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2
include/media/v4l2-ioctl.h
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@@ -602,6 +602,8 @@ struct v4l2_ioctl_ops {
#define V4L2_DEV_DEBUG_STREAMING 0x08
/* Log poll() */
#define V4L2_DEV_DEBUG_POLL 0x10
/* Log controls */
#define V4L2_DEV_DEBUG_CTRL 0x20
/* Video standard functions */