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-rw-r--r--include/media/v4l2-common.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index e0d95a7c5d48..f3aa1d728c0b 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -341,4 +341,30 @@ v4l2_find_nearest_format(const struct v4l2_frmsize_discrete *sizes,
*/
void v4l2_get_timestamp(struct timeval *tv);
+/**
+ * v4l2_g_parm_cap - helper routine for vidioc_g_parm to fill this in by
+ * calling the g_frame_interval op of the given subdev. It only works
+ * for V4L2_BUF_TYPE_VIDEO_CAPTURE(_MPLANE), hence the _cap in the
+ * function name.
+ *
+ * @vdev: the struct video_device pointer. Used to determine the device caps.
+ * @sd: the sub-device pointer.
+ * @a: the VIDIOC_G_PARM argument.
+ */
+int v4l2_g_parm_cap(struct video_device *vdev,
+ struct v4l2_subdev *sd, struct v4l2_streamparm *a);
+
+/**
+ * v4l2_s_parm_cap - helper routine for vidioc_s_parm to fill this in by
+ * calling the s_frame_interval op of the given subdev. It only works
+ * for V4L2_BUF_TYPE_VIDEO_CAPTURE(_MPLANE), hence the _cap in the
+ * function name.
+ *
+ * @vdev: the struct video_device pointer. Used to determine the device caps.
+ * @sd: the sub-device pointer.
+ * @a: the VIDIOC_S_PARM argument.
+ */
+int v4l2_s_parm_cap(struct video_device *vdev,
+ struct v4l2_subdev *sd, struct v4l2_streamparm *a);
+
#endif /* V4L2_COMMON_H_ */
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