Initial commit

lib/flutter_usb_serial_platform_interface.dart

@@ -0,0 +1,29 @@
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+import 'flutter_usb_serial_method_channel.dart';
+
+abstract class FlutterUsbSerialPlatform extends PlatformInterface {
+  /// Constructs a FlutterUsbSerialPlatform.
+  FlutterUsbSerialPlatform() : super(token: _token);
+
+  static final Object _token = Object();
+
+  static FlutterUsbSerialPlatform _instance = MethodChannelFlutterUsbSerial();
+
+  /// The default instance of [FlutterUsbSerialPlatform] to use.
+  ///
+  /// Defaults to [MethodChannelFlutterUsbSerial].
+  static FlutterUsbSerialPlatform get instance => _instance;
+
+  /// Platform-specific implementations should set this with their own
+  /// platform-specific class that extends [FlutterUsbSerialPlatform] when
+  /// they register themselves.
+  static set instance(FlutterUsbSerialPlatform instance) {
+    PlatformInterface.verifyToken(instance, _token);
+    _instance = instance;
+  }
+
+  Future<String?> getPlatformVersion() {
+    throw UnimplementedError('platformVersion() has not been implemented.');
+  }
+}