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-rw-r--r--include/media/v4l2-subdev.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index d9fca929c1..c1f90c1223 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -446,7 +446,9 @@ enum v4l2_subdev_pre_streamon_flags {
* @s_stream: start (enabled == 1) or stop (enabled == 0) streaming on the
* sub-device. Failure on stop will remove any resources acquired in
* streaming start, while the error code is still returned by the driver.
- * Also see call_s_stream wrapper in v4l2-subdev.c.
+ * The caller shall track the subdev state, and shall not start or stop an
+ * already started or stopped subdev. Also see call_s_stream wrapper in
+ * v4l2-subdev.c.
*
* @g_pixelaspect: callback to return the pixelaspect ratio.
*
@@ -822,8 +824,9 @@ struct v4l2_subdev_state {
* operation shall fail if the pad index it has been called on
* is not valid or in case of unrecoverable failures.
*
- * @set_routing: enable or disable data connection routes described in the
- * subdevice routing table.
+ * @set_routing: Enable or disable data connection routes described in the
+ * subdevice routing table. Subdevs that implement this operation
+ * must set the V4L2_SUBDEV_FL_STREAMS flag.
*
* @enable_streams: Enable the streams defined in streams_mask on the given
* source pad. Subdevs that implement this operation must use the active
@@ -948,8 +951,6 @@ struct v4l2_subdev_internal_ops {
void (*release)(struct v4l2_subdev *sd);
};
-#define V4L2_SUBDEV_NAME_SIZE 32
-
/* Set this flag if this subdev is a i2c device. */
#define V4L2_SUBDEV_FL_IS_I2C (1U << 0)
/* Set this flag if this subdev is a spi device. */
@@ -1059,7 +1060,7 @@ struct v4l2_subdev {
const struct v4l2_subdev_ops *ops;
const struct v4l2_subdev_internal_ops *internal_ops;
struct v4l2_ctrl_handler *ctrl_handler;
- char name[V4L2_SUBDEV_NAME_SIZE];
+ char name[52];
u32 grp_id;
void *dev_priv;
void *host_priv;