The second argument to both calls is a group ID. If 0, then all subdevs are
called. If non-zero, then only those whose group ID match that value will
-be called. Before a bridge driver registers a subdev it can set subdev->grp_id
+be called. Before a bridge driver registers a subdev it can set sd->grp_id
to whatever value it wants (it's 0 by default). This value is owned by the
bridge driver and the sub-device driver will never modify or use it.
if (v4l2_dev == NULL || sd == NULL || !sd->name[0])
return -EINVAL;
/* Warn if we apparently re-register a subdev */
- WARN_ON(sd->dev != NULL);
+ WARN_ON(sd->v4l2_dev != NULL);
if (!try_module_get(sd->owner))
return -ENODEV;
- sd->dev = v4l2_dev;
+ sd->v4l2_dev = v4l2_dev;
spin_lock(&v4l2_dev->lock);
list_add_tail(&sd->list, &v4l2_dev->subdevs);
spin_unlock(&v4l2_dev->lock);
void v4l2_device_unregister_subdev(struct v4l2_subdev *sd)
{
/* return if it isn't registered */
- if (sd == NULL || sd->dev == NULL)
+ if (sd == NULL || sd->v4l2_dev == NULL)
return;
- spin_lock(&sd->dev->lock);
+ spin_lock(&sd->v4l2_dev->lock);
list_del(&sd->list);
- spin_unlock(&sd->dev->lock);
- sd->dev = NULL;
+ spin_unlock(&sd->v4l2_dev->lock);
+ sd->v4l2_dev = NULL;
module_put(sd->owner);
}
EXPORT_SYMBOL_GPL(v4l2_device_unregister_subdev);
struct v4l2_subdev {
struct list_head list;
struct module *owner;
- struct v4l2_device *dev;
+ struct v4l2_device *v4l2_dev;
const struct v4l2_subdev_ops *ops;
/* name must be unique */
char name[V4L2_SUBDEV_NAME_SIZE];
/* ops->core MUST be set */
BUG_ON(!ops || !ops->core);
sd->ops = ops;
- sd->dev = NULL;
+ sd->v4l2_dev = NULL;
sd->name[0] = '\0';
sd->grp_id = 0;
sd->priv = NULL;