Add min and max structures to the v4l2-subdev callback in order to allow
the subdev to return a range of valid frame intervals.
This would operate similar to the struct v4l2_subdev_frame_size_enum and
its max and min values for the width and the height. In this case, the
possibility to return a frame interval range is added to the v4l2-subdev level
whenever the v4l2 device operates in step-wise or continuous mode.
Signed-off-by: Daniel Gomez <daniel@xxxxxxxx>
---
include/uapi/linux/v4l2-subdev.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h
index 03970ce30741..ee15393c58cd 100644
--- a/include/uapi/linux/v4l2-subdev.h
+++ b/include/uapi/linux/v4l2-subdev.h
@@ -117,6 +117,8 @@ struct v4l2_subdev_frame_interval {
* @code: format code (MEDIA_BUS_FMT_ definitions)
* @width: frame width in pixels
* @height: frame height in pixels
+ * @min_interval: min frame interval in seconds
+ * @max_interval: max frame interval in seconds
* @interval: frame interval in seconds
* @which: format type (from enum v4l2_subdev_format_whence)
*/
@@ -126,9 +128,11 @@ struct v4l2_subdev_frame_interval_enum {
__u32 code;
__u32 width;
__u32 height;
+ struct v4l2_fract min_interval;
+ struct v4l2_fract max_interval;
struct v4l2_fract interval;
__u32 which;
- __u32 reserved[8];
+ __u32 reserved[4];
};
/**
--
2.25.1
