diff --git a/repos/os/include/os/pin_driver.h b/repos/os/include/os/pin_driver.h
index 18f470f91c..edefddd807 100644
--- a/repos/os/include/os/pin_driver.h
+++ b/repos/os/include/os/pin_driver.h
@@ -39,6 +39,8 @@ namespace Pin {
 	{
 		using Pin::Root<Irq_session_component<ID>, Direction::IN>::Root;
 	};
+
+	enum class Level { LOW, HIGH, HIGH_IMPEDANCE };
 }
 
 
@@ -53,7 +55,7 @@ struct Pin::Driver : Interface
 	/**
 	 * Set pin state
 	 */
-	virtual void pin_state(ID, bool enabled) = 0;
+	virtual void pin_state(ID, Level) = 0;
 
 	/**
 	 * Return pin ID assigned to the specified session label
diff --git a/repos/os/include/pin_control_session/component.h b/repos/os/include/pin_control_session/component.h
index d82e90471c..1a52695c50 100644
--- a/repos/os/include/pin_control_session/component.h
+++ b/repos/os/include/pin_control_session/component.h
@@ -39,6 +39,12 @@ class Pin_control::Session_component : public Session_object<Session>
 
 		using Session_object<Session>::label;
 
+		void _state(Pin::Level level)
+		{
+			if (_assignment.target.constructed())
+				_assignment.driver.pin_state(_assignment.target->id, level);
+		}
+
 	public:
 
 		using Pin_id = ID;
@@ -57,8 +63,15 @@ class Pin_control::Session_component : public Session_object<Session>
 		 */
 		void state(bool enabled) override
 		{
-			if (_assignment.target.constructed())
-				_assignment.driver.pin_state(_assignment.target->id, enabled);
+			_state(enabled ? Pin::Level::HIGH : Pin::Level::LOW);
+		}
+
+		/**
+		 * Pin_control::Session interface
+		 */
+		void yield() override
+		{
+			_state(Pin::Level::HIGH_IMPEDANCE);
 		}
 
 		void update_assignment()
diff --git a/repos/os/include/pin_control_session/connection.h b/repos/os/include/pin_control_session/connection.h
index 3b2bf1782b..0806c2bf08 100644
--- a/repos/os/include/pin_control_session/connection.h
+++ b/repos/os/include/pin_control_session/connection.h
@@ -35,6 +35,8 @@ struct Pin_control::Connection : private Genode::Connection<Session>,
 	{ }
 
 	void state(bool enabled) override { call<Rpc_state>(enabled); }
+
+	void yield() override { call<Rpc_yield>(); }
 };
 
 #endif /* _INCLUDE__PIN_CONTROL_SESSION__CONNECTION_H_ */
diff --git a/repos/os/include/pin_control_session/pin_control_session.h b/repos/os/include/pin_control_session/pin_control_session.h
index 909c55bf22..a222550d7a 100644
--- a/repos/os/include/pin_control_session/pin_control_session.h
+++ b/repos/os/include/pin_control_session/pin_control_session.h
@@ -40,8 +40,11 @@ struct Pin_control::Session : Genode::Session
 
 	virtual void state(bool) = 0;
 
+	virtual void yield() = 0;
+
 	GENODE_RPC(Rpc_state, void, state, bool);
-	GENODE_RPC_INTERFACE(Rpc_state);
+	GENODE_RPC(Rpc_yield, void, yield);
+	GENODE_RPC_INTERFACE(Rpc_state, Rpc_yield);
 };
 
 #endif /* _INCLUDE__PIN_CONTROL_SESSION__PIN_CONTROL_SESSION_H_ */