diff --git a/tinyusb/osal/osal_freeRTOS.h b/tinyusb/osal/osal_freeRTOS.h
index b0a99ad38..211072331 100644
--- a/tinyusb/osal/osal_freeRTOS.h
+++ b/tinyusb/osal/osal_freeRTOS.h
@@ -132,10 +132,10 @@ static inline void osal_semaphore_wait(osal_semaphore_t sem_hdl, uint32_t msec,
   (*p_error) = (xSemaphoreTake(sem_hdl, ticks) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_TIMEOUT);
 }
 
+// TODO remove
 static inline void osal_semaphore_reset(osal_semaphore_t const sem_hdl)
 {
-  tusb_error_t err;
-  osal_semaphore_wait(sem_hdl, 0, &err);
+  xSemaphoreTakeFromISR(sem_hdl, NULL);
 }
 
 //--------------------------------------------------------------------+
@@ -156,13 +156,6 @@ static inline void osal_mutex_wait(osal_mutex_t mutex_hdl, uint32_t msec, tusb_e
   (*p_error) = (xSemaphoreTake(mutex_hdl, ticks) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_TIMEOUT);
 }
 
-// TOOD remove
-static inline void osal_mutex_reset(osal_mutex_t mutex_hdl)
-{
-  xSemaphoreGive(mutex_hdl);
-}
-
-
 
 #ifdef __cplusplus
  }
diff --git a/tinyusb/osal/osal_none.h b/tinyusb/osal/osal_none.h
index 5325fd29e..9cdfdcb2f 100644
--- a/tinyusb/osal/osal_none.h
+++ b/tinyusb/osal/osal_none.h
@@ -241,12 +241,6 @@ static inline bool osal_mutex_release(osal_mutex_t mutex_hdl)
   return osal_semaphore_post(mutex_hdl);
 }
 
-// TOOD remove
-static inline void osal_mutex_reset(osal_mutex_t mutex_hdl)
-{
-  osal_semaphore_reset(mutex_hdl);
-}
-
 #define osal_mutex_wait osal_semaphore_wait