Contentious change to Arduino USB HID implementation - don't

automatically send a key report on every change. Let calling code
decide when. This breaks normal sketches, but makes a keyboard
much faster

hardware/keyboardio/avr/cores/keyboardio/HID.cpp

@@ -554,7 +554,6 @@ uint8_t USBPutChar(uint8_t c);
     if (!addKeycodeToReport(k)) {
         return 0;
     }
-	sendReport(&_keyReport);
  }
 
  size_t Keyboard_::addKeycodeToReport(uint8_t k)
@@ -700,7 +699,6 @@ size_t Keyboard_::releaseKeycode(uint8_t k)
 	if (!removeKeycodeFromReport(k)) {
 		return 0;
 	}
-	sendReport(&_keyReport);
 }
 
 size_t Keyboard_::removeKeycodeFromReport(uint8_t k)
@@ -781,6 +779,10 @@ size_t Keyboard_::release(uint8_t k)
 void Keyboard_::releaseAll(void)
 {
     memset(&_keyReport, 0x00, sizeof(_keyReport));
+    sendCurrentReport();
+}
+
+void Keyboard_::sendCurrentReport(void) {
 	sendReport(&_keyReport);
 }
 

hardware/keyboardio/avr/cores/keyboardio/USBAPI.h

@@ -233,6 +233,7 @@ public:
 	virtual void releaseAll(void);
 	virtual size_t systemControl(uint8_t k);
     virtual size_t consumerControl(uint8_t k);
+    void sendCurrentReport(void);
 };
 extern Keyboard_ Keyboard;