add max_interval and step_interval to struct
v4l2_subdev_frame_interval_enum.
When filled correctly by the sensor driver, those fields must be
used as follows by the intermediate level :
struct v4l2_frmivalenum *fival;
struct v4l2_subdev_frame_interval_enum fie;
if (fie.max_interval.numerator == 0) {
fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
fival->discrete = fie.interval;
} else if (fie.step_interval.numerator == 0) {
fival->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
fival->stepwise.min = fie.interval;
fival->stepwise.max = fie.max_interval;
} else {
fival->type = V4L2_FRMIVAL_TYPE_STEPWISE;
fival->stepwise.min = fie.interval;
fival->stepwise.max = fie.max_interval;
fival->stepwise.step = fie.step_interval;
}
Signed-off-by: Philippe De Muyter <phdm@xxxxxxxxx>
---
include/uapi/linux/v4l2-subdev.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h
index dbce2b554..846dd36 100644
--- a/include/uapi/linux/v4l2-subdev.h
+++ b/include/uapi/linux/v4l2-subdev.h
@@ -127,7 +127,9 @@ struct v4l2_subdev_frame_interval_enum {
__u32 height;
struct v4l2_fract interval;
__u32 which;
- __u32 reserved[8];
+ struct v4l2_fract max_interval;
+ struct v4l2_fract step_interval;
+ __u32 reserved[4];
};
/**
--
1.8.1.4
--
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