diff options
Diffstat (limited to 'include/media/v4l2-async.h')
| -rw-r--r-- | include/media/v4l2-async.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h index 1d6d7da4c..8e2a236a4 100644 --- a/include/media/v4l2-async.h +++ b/include/media/v4l2-async.h @@ -23,6 +23,19 @@ struct v4l2_async_notifier; /* A random max subdevice number, used to allocate an array on stack */ #define V4L2_MAX_SUBDEVS 128U +/** + * enum v4l2_async_match_type - type of asynchronous subdevice logic to be used + * in order to identify a match + * + * @V4L2_ASYNC_MATCH_CUSTOM: Match will use the logic provided by &struct + * v4l2_async_subdev.match ops + * @V4L2_ASYNC_MATCH_DEVNAME: Match will use the device name + * @V4L2_ASYNC_MATCH_I2C: Match will check for I2C adapter ID and address + * @V4L2_ASYNC_MATCH_OF: Match will use OF node + * + * This enum is used by the asyncrhronous sub-device logic to define the + * algorithm that will be used to match an asynchronous device. + */ enum v4l2_async_match_type { V4L2_ASYNC_MATCH_CUSTOM, V4L2_ASYNC_MATCH_DEVNAME, @@ -91,9 +104,35 @@ struct v4l2_async_notifier { struct v4l2_async_subdev *asd); }; +/** + * v4l2_async_notifier_register - registers a subdevice asynchronous notifier + * + * @v4l2_dev: pointer to &struct v4l2_device + * @notifier: pointer to &struct v4l2_async_notifier + */ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, struct v4l2_async_notifier *notifier); + +/** + * v4l2_async_notifier_unregister - unregisters a subdevice asynchronous notifier + * + * @notifier: pointer to &struct v4l2_async_notifier + */ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier); + +/** + * v4l2_async_register_subdev - registers a sub-device to the asynchronous + * subdevice framework + * + * @sd: pointer to &struct v4l2_subdev + */ int v4l2_async_register_subdev(struct v4l2_subdev *sd); + +/** + * v4l2_async_unregister_subdev - unregisters a sub-device to the asynchronous + * subdevice framework + * + * @sd: pointer to &struct v4l2_subdev + */ void v4l2_async_unregister_subdev(struct v4l2_subdev *sd); #endif |