1 files changed, 4 insertions, 0 deletions
diff --git a/lib/control/scanner_controller.dart b/lib/control/scanner_controller.dart
index 8936e86..fd44307 100644
--- a/lib/control/scanner_controller.dart
+++ b/lib/control/scanner_controller.dart
@@ -5,11 +5,15 @@ import 'package:uvok_epaper_badge/model/device/device.dart';
 /// Represents the scan status.
 enum ScanStatus { idle, scanning, finished, error }
 
+enum ScanAvailability { unavailable, available }
+
 /// Represents a scanner controller.
 /// It emits devices which may be connected to later.
 abstract class ScannerController {
   Stream<List<Device>> get scanResultsStream;
   Stream<ScanStatus> get statusStream;
+  Stream<ScanAvailability> get availabilityStream;
+
   Future<void> startScan({Duration timeout});
   Future<void> stopScan();
   void dispose();