diff --git a/libraries/AP_HAL_SITL/RCOutput.cpp b/libraries/AP_HAL_SITL/RCOutput.cpp
index ea23004899..f4ae7b7db2 100644
--- a/libraries/AP_HAL_SITL/RCOutput.cpp
+++ b/libraries/AP_HAL_SITL/RCOutput.cpp
@@ -87,7 +87,7 @@ void RCOutput::push(void)
 /*
   Serial LED emulation
 */
-bool RCOutput::set_neopixel_num_LEDs(const uint16_t chan, uint8_t num_leds)
+bool RCOutput::set_serial_led_num_LEDs(const uint16_t chan, uint8_t num_leds, output_mode mode, uint16_t clock_mask)
 {
     if (chan > 15 || num_leds > 64) {
         return false;
@@ -100,7 +100,7 @@ bool RCOutput::set_neopixel_num_LEDs(const uint16_t chan, uint8_t num_leds)
     return false;
 }
 
-void RCOutput::set_neopixel_rgb_data(const uint16_t chan, int8_t led, uint8_t red, uint8_t green, uint8_t blue)
+void RCOutput::set_serial_led_rgb_data(const uint16_t chan, int8_t led, uint8_t red, uint8_t green, uint8_t blue)
 {
     if (chan > 15) {
         return;
@@ -108,7 +108,7 @@ void RCOutput::set_neopixel_rgb_data(const uint16_t chan, int8_t led, uint8_t re
     SITL::SITL *sitl = AP::sitl();
     if (led == -1) {
         for (uint8_t i=0; i < sitl->led.num_leds[chan]; i++) {
-            set_neopixel_rgb_data(chan, i, red, green, blue);
+            set_serial_led_rgb_data(chan, i, red, green, blue);
         }
         return;
     }
@@ -122,7 +122,7 @@ void RCOutput::set_neopixel_rgb_data(const uint16_t chan, int8_t led, uint8_t re
     }
 }
 
-void RCOutput::neopixel_send(void)
+void RCOutput::serial_led_send(const uint16_t chan)
 {
     SITL::SITL *sitl = AP::sitl();
     if (sitl) {
diff --git a/libraries/AP_HAL_SITL/RCOutput.h b/libraries/AP_HAL_SITL/RCOutput.h
index b31b6fb594..a4c358dde0 100644
--- a/libraries/AP_HAL_SITL/RCOutput.h
+++ b/libraries/AP_HAL_SITL/RCOutput.h
@@ -21,9 +21,9 @@ public:
     /*
       Serial LED emulation
      */
-    bool set_neopixel_num_LEDs(const uint16_t chan, uint8_t num_leds) override;
-    void set_neopixel_rgb_data(const uint16_t chan, int8_t led, uint8_t red, uint8_t green, uint8_t blue) override;
-    void neopixel_send(void) override;
+    bool set_serial_led_num_LEDs(const uint16_t chan, uint8_t num_leds, output_mode mode = MODE_PWM_NONE, uint16_t clock_mask = 0) override;
+    void set_serial_led_rgb_data(const uint16_t chan, int8_t led, uint8_t red, uint8_t green, uint8_t blue) override;
+    void serial_led_send(const uint16_t chan) override;
     
 private:
     SITL_State *_sitlState;