PropertiesChanged
This method informs the host when the state of an driver’s object changes.
Declaration
kern_return_t PropertiesChanged(IOUserVideoObjectID in_object_id, IOUserVideoObjectPropertySelector *in_properties, uint32_t in_num_properties);Parameters
- in_object_id:
The identifier of the object whose properties changed.
- in_properties:
An array of property selectors for the changed properties.
- in_num_properties:
The number of elements in the
in_propertiesarray.
Return Value
A kern_return_t indicating success or failure.
Discussion
For device objects, this method is only used for state changes that don’t affect IO or the structure of the device.