Add support for conveying the information set by the driver to the user
space.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-ctrls.c | 3 +++
include/media/v4l2-ctrls.h | 2 ++
2 files changed, 5 insertions(+)
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index ee006d34c19f0..8d2931b0a4701 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -2732,6 +2732,9 @@ int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_query_ext_ctr
qc->minimum = ctrl->minimum;
qc->maximum = ctrl->maximum;
qc->default_value = ctrl->default_value;
+ qc->base = ctrl->base;
+ qc->prefix = ctrl->prefix;
+ qc->unit = ctrl->unit;
if (ctrl->type == V4L2_CTRL_TYPE_MENU
|| ctrl->type == V4L2_CTRL_TYPE_INTEGER_MENU)
qc->step = 1;
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index f615ba1b29dd9..d6aaf45b70381 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -220,6 +220,8 @@ struct v4l2_ctrl {
u32 elem_size;
u32 dims[V4L2_CTRL_MAX_DIMS];
u32 nr_of_dims;
+ u8 base, unit;
+ u16 prefix;
union {
u64 step;
u64 menu_skip_mask;
--
2.11.0
