Do not close Wire on end()

Author: pschatzmann

src/AudioDriverConfig.h

@@ -5,7 +5,6 @@
 #  define DRIVER_DEFAULT_VOLUME 70
 #endif
 
-
 // To increase the max volume e.g. for ai_thinker (ES8388) 2957 or A202 -> set
 // to 1 or 2 0 AUX volume is LINE level 1 you can control the AUX volume with
 // setVolume()
@@ -20,10 +19,14 @@
 #  define ES8388_DEFAULT_INPUT_GAIN 25
 #endif
 
-
 // For AI Thinker Audiokit we mute the power amplifier if the line is defined;
 // set to -1 to deactivate this functionality
-#ifndef ES8388_PA_LINE 
+#ifndef ES8388_PA_LINE
 #  define ES8388_PA_LINE 1
 #endif
 
+// If set to true, call Wire.close() on end: this might cause that the
+// functionality can not be restarted
+#ifndef FORCE_WIRE_CLOSE
+#  define FORCE_WIRE_CLOSE false
+#endif

src/DriverPins.h

@@ -200,8 +200,8 @@ struct PinsI2C {
     return true;
   }
   void end() {
-#ifndef ESP8266
-    p_wire->end();
+#if !defined(ESP8266) && FORCE_WIRE_CLOSE
+     p_wire->end();
 #endif
   }
 };