acpi_status acpi_detach_data(acpi_handle object, acpi_object_handler handler);
+acpi_status
+acpi_get_data_full(acpi_handle object, acpi_object_handler handler, void **data,
+ void (*callback)(void *));
+
acpi_status
acpi_get_data(acpi_handle object, acpi_object_handler handler, void **data);