diff --git a/osal/FreeRTOS/BinarySemaphore.cpp b/osal/FreeRTOS/BinarySemaphore.cpp
index acfc53bd..c0300b81 100644
--- a/osal/FreeRTOS/BinarySemaphore.cpp
+++ b/osal/FreeRTOS/BinarySemaphore.cpp
@@ -132,6 +132,17 @@ void BinarySemaphore::resetSemaphore() {
 	}
 }
 
+ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) {
+	return takeBinarySemaphore(timeoutMs);
+}
+
+ReturnValue_t BinarySemaphore::release() {
+	return giveBinarySemaphore();
+}
+
+uint8_t BinarySemaphore::getSemaphoreCounter() {
+	return uxSemaphoreGetCount(handle);
+}
 
 // Be careful with the stack size here. This is called from an ISR!
 ReturnValue_t BinarySemaphore::giveBinarySemaphoreFromISR(SemaphoreHandle_t semaphore,
diff --git a/osal/FreeRTOS/BinarySemaphore.h b/osal/FreeRTOS/BinarySemaphore.h
index 865da8a6..8271d9d0 100644
--- a/osal/FreeRTOS/BinarySemaphore.h
+++ b/osal/FreeRTOS/BinarySemaphore.h
@@ -2,7 +2,7 @@
 #define FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_
 
 #include <framework/returnvalues/HasReturnvaluesIF.h>
-
+#include <framework/tasks/SemaphoreIF.h>
 extern "C" {
 #include <freertos/FreeRTOS.h>
 #include <freertos/semphr.h>
@@ -21,7 +21,8 @@ extern "C" {
  * @author 	R. Mueller
  * @ingroup osal
  */
-class BinarySemaphore: public HasReturnvaluesIF {
+class BinarySemaphore: public SemaphoreIF,
+		public HasReturnvaluesIF {
 public:
 	static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF;
 
@@ -67,6 +68,12 @@ public:
 	 */
 	virtual ~BinarySemaphore();
 
+	ReturnValue_t acquire(uint32_t timeoutMs =
+	        BinarySemaphore::NO_BLOCK_TIMEOUT) override;
+	ReturnValue_t release() override;
+
+	uint8_t getSemaphoreCounter() override;
+
 	/**
 	 * Take the binary semaphore.
 	 * If the semaphore has already been taken, the task will be blocked
diff --git a/tasks/SemaphoreIF.h b/tasks/SemaphoreIF.h
index cf56f6f9..616b992d 100644
--- a/tasks/SemaphoreIF.h
+++ b/tasks/SemaphoreIF.h
@@ -9,10 +9,11 @@
  * 			task synchronization.
  */
 class SemaphoreIF {
+public:
+	virtual~ SemaphoreIF() {};
 	//!< Needs to be defined in implementation.
 	static const uint32_t NO_TIMEOUT;
 	static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF;
-
 	//! Semaphore timeout
 	static constexpr ReturnValue_t SEMAPHORE_TIMEOUT = MAKE_RETURN_CODE(1);
 	//! The current semaphore can not be given, because it is not owned
@@ -26,24 +27,23 @@ class SemaphoreIF {
 	 * for a maximum of timeoutMs while trying to acquire the semaphore.
 	 * This can be used to achieve task synchrnization.
 	 * @param timeoutMs
-	 * @return
+	 * @return - c RETURN_OK for successfull acquisition
 	 */
-	ReturnValue_t acquire(uint32_t timeoutMs) = 0;
+	virtual ReturnValue_t acquire(uint32_t timeoutMs) = 0;
 
 	/**
 	 * Corrensponding call to release a semaphore.
-	 * @return
+	 * @return -@c RETURN_OK for successfull release
 	 */
-	ReturnValue_t release() = 0;
+	virtual ReturnValue_t release() = 0;
 
 	/**
 	 * If the semaphore is a counting semaphore then the semaphores current
 	 * count value is returned. If the semaphore is a binary semaphore then 1
 	 * is returned if the semaphore is available, and 0 is returned if the
 	 * semaphore is not available.
-	 * @return
 	 */
-	uint8_t getSemaphoreCounter() = 0;
+	virtual uint8_t getSemaphoreCounter() = 0;
 };
 
 #endif /* FRAMEWORK_TASKS_SEMAPHOREIF_H_ */