V4L/DVB (8636): v4l2: add v4l2_ctrl_get_name control support function.

Add function that returns the control name. Allows this to be used in
places where the normal v4l2_ctrl_query_fill() function cannot be
used (e.g. uvc).

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 07d3a9a575d1..8b678e0d46e3 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -76,6 +76,7 @@ int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local);
 
 int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
                 const char **menu_items);
+const char *v4l2_ctrl_get_name(u32 id);
 const char **v4l2_ctrl_get_menu(u32 id);
 int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
 int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl);