diff --git a/src/bt_control_iphone.h b/src/bt_control_iphone.h
index b9fe933f9..f0f839cb9 100644
--- a/src/bt_control_iphone.h
+++ b/src/bt_control_iphone.h
@@ -41,10 +41,13 @@
 
 extern bt_control_t bt_control_iphone;
 
-int bt_control_iphone_power_management_enabled(void);
-int bt_control_iphone_power_management_supported(void);
+int  bt_control_iphone_power_management_enabled(void);
+int  bt_control_iphone_power_management_supported(void);
 
-// control system Bluetooth
-int  iphone_system_bt_enabled();
+int  iphone_system_bt_enabled(void);
 void iphone_system_bt_set_enabled(int enabled);
 
+int  iphone_system_has_csr(void);
+
+
+
diff --git a/src/bt_control_iphone.m b/src/bt_control_iphone.m
index bd74dbde0..98e4c1277 100644
--- a/src/bt_control_iphone.m
+++ b/src/bt_control_iphone.m
@@ -121,16 +121,6 @@ static io_connect_t  root_port = 0; // a reference to the Root Power Domain IOSe
 static int power_notification_pipe_fds[2];
 static data_source_t power_notification_ds;
 
-int iphone_system_bt_enabled(){
-    return SBA_getBluetoothEnabled();
-}
-
-void iphone_system_bt_set_enabled(int enabled)
-{
-    SBA_setBluetoothEnabled(enabled);
-    sleep(2); // give change a chance
-}
-
 static void (*power_notification_callback)(POWER_NOTIFICATION_t event) = NULL;
 
 #define BUFF_LEN 80
@@ -692,6 +682,10 @@ int bt_control_iphone_power_management_supported(void){
     return 1;
 }
 
+// direct access
+int bt_control_iphone_power_management_enabled(void){
+    return power_management_active;
+}
 
 // single instance
 bt_control_t bt_control_iphone = {
@@ -704,7 +698,16 @@ bt_control_t bt_control_iphone = {
     .register_for_power_notifications = iphone_register_for_power_notifications
 };
 
-// direct access
-int bt_control_iphone_power_management_enabled(void){
-    return power_management_active;
+int iphone_system_bt_enabled(void){
+    return SBA_getBluetoothEnabled();
 }
+
+void iphone_system_bt_set_enabled(int enabled)
+{
+    SBA_setBluetoothEnabled(enabled);
+    sleep(2); // give change a chance
+}
+
+int iphone_system_has_csr(void){
+    return iphone_has_csr();
+}
\ No newline at end of file