3 files changed, 10 insertions, 0 deletions
diff --git a/os/hal/platforms/Win32/hal_lld.c b/os/hal/platforms/Win32/hal_lld.c
index 9051e90dc..43eff9781 100644
--- a/os/hal/platforms/Win32/hal_lld.c
+++ b/os/hal/platforms/Win32/hal_lld.c
@@ -81,11 +81,13 @@ void hal_lld_init(void) {
 void ChkIntSources(void) {
   LARGE_INTEGER n;
 
+#if CH_HAL_USE_SERIAL
   if (sd_lld_interrupt_pending()) {
     if (chSchIsRescRequiredExI())
       chSchDoRescheduleI();
     return;
   }
+#endif
 
   // Interrupt Timer simulation (10ms interval).
   QueryPerformanceCounter(&n);
diff --git a/os/hal/platforms/Win32/serial_lld.c b/os/hal/platforms/Win32/serial_lld.c
index c8543799f..18266ef6b 100644
--- a/os/hal/platforms/Win32/serial_lld.c
+++ b/os/hal/platforms/Win32/serial_lld.c
@@ -27,6 +27,8 @@
 #include "ch.h"
 #include "hal.h"
 
+#if CH_HAL_USE_SERIAL || defined(__DOXYGEN__)
+
 /** @brief Serial driver 1 identifier.*/
 #if USE_WIN32_SERIAL1 || defined(__DOXYGEN__)
 SerialDriver SD1;
@@ -248,4 +250,6 @@ bool_t sd_lld_interrupt_pending(void) {
          outint(&SD1)  || outint(&SD2);
 }
 
+#endif /* CH_HAL_USE_SERIAL */
+
 /** @} */
diff --git a/os/hal/platforms/Win32/serial_lld.h b/os/hal/platforms/Win32/serial_lld.h
index e831b83bd..a74028b8b 100644
--- a/os/hal/platforms/Win32/serial_lld.h
+++ b/os/hal/platforms/Win32/serial_lld.h
@@ -27,6 +27,8 @@
 #ifndef _SERIAL_LLD_H_
 #define _SERIAL_LLD_H_
 
+#if CH_HAL_USE_SERIAL || defined(__DOXYGEN__)
+
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */
 /*===========================================================================*/
@@ -166,6 +168,8 @@ extern "C" {
 #endif
 /** @endcond*/
 
+#endif /* CH_HAL_USE_SERIAL */
+
 #endif /* _SERIAL_LLD_H_ */
 
 /** @} */