Stm32 init (#100)

hid/lib/drivers/mouse.h

@@ -31,6 +31,10 @@ namespace DRIVERS {
 	struct Mouse : public Driver {
 		using Driver::Driver;
 		virtual void begin() {}
+		
+		/**
+		 * Release all keys
+		 */
 		virtual void clear() {}
 		virtual void sendButtons(
 			bool left_select, bool left_state,
@@ -42,5 +46,6 @@ namespace DRIVERS {
 		virtual void sendRelative(int x, int y) {}
 		virtual void sendWheel(int delta_y) {}
 		virtual bool isOffline() { return false; }
+		virtual void periodic() {}
 	};
 }