Document the expected {enable,disable}_streams callback behaviour for
drivers that are stream-unaware i.e. don't specify the
V4L2_SUBDEV_CAP_STREAMS sub-device capability flat. In this specific case,
the mask argument can be ignored.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
include/media/v4l2-subdev.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 3cc6b4a5935f..67a6e6ec58b8 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -834,11 +834,19 @@ struct v4l2_subdev_state {
* v4l2_subdev_init_finalize() at initialization time). Do not call
* directly, use v4l2_subdev_enable_streams() instead.
*
+ * Drivers that support only a single stream without setting the
+ * V4L2_SUBDEV_CAP_STREAMS sub-device capatility flag do not need to
+ * be concerned with the mask argument.
+ *
* @disable_streams: Disable the streams defined in streams_mask on the given
* source pad. Subdevs that implement this operation must use the active
* state management provided by the subdev core (enabled through a call to
* v4l2_subdev_init_finalize() at initialization time). Do not call
* directly, use v4l2_subdev_disable_streams() instead.
+ *
+ * Drivers that support only a single stream without setting the
+ * V4L2_SUBDEV_CAP_STREAMS sub-device capatility flag do not need to
+ * be concerned with the mask argument.
*/
struct v4l2_subdev_pad_ops {
int (*enum_mbus_code)(struct v4l2_subdev *sd,
--
2.39.5
