1 files changed, 6 insertions, 4 deletions
diff --git a/os/hal/templates/adc_lld.h b/os/hal/templates/adc_lld.h
index d969b24e0..6486abb37 100644
--- a/os/hal/templates/adc_lld.h
+++ b/os/hal/templates/adc_lld.h
@@ -112,10 +112,6 @@ typedef struct {
    */
   const ADCConfig           *ad_config;
   /**
-   * @brief Synchronization semaphore.
-   */
-  Semaphore                 ad_sem;
-  /**
    * @brief Current callback function or @p NULL.
    */
   adccallback_t             ad_callback;
@@ -131,6 +127,12 @@ typedef struct {
    * @brief Current conversion group pointer or @p NULL.
    */
   const ADCConversionGroup  *ad_grpp;
+#if ADC_USE_WAIT
+  /**
+   * @brief Synchronization semaphore.
+   */
+  Semaphore                 ad_sem;
+#endif
   /* End of the mandatory fields.*/
 } ADCDriver;