Add connected function

Author: dmadison

keywords.txt

@@ -47,6 +47,7 @@ getRumbleRight	KEYWORD2
 getLEDPatternID	KEYWORD2
 
 # USB I/O
+connected	KEYWORD2
 send	KEYWORD2
 receive	KEYWORD2
 

src/XInput.cpp

@@ -304,6 +304,14 @@ uint8_t XInputGamepad::getLEDPatternID() const {
 	return (uint8_t)ledPattern;
 }
 
+boolean XInputGamepad::connected() {
+#ifdef USB_XINPUT
+	return XInputUSB::connected();
+#else
+	return false;
+#endif
+}
+
 //Send an update packet to the PC
 size_t XInputGamepad::send() {
 	if (!newData) return 0;  // TX data hasn't changed

src/XInput.h

@@ -104,6 +104,7 @@ class XInputGamepad {
 	XInputLEDPattern getLEDPattern() const;  // Returns LED pattern type
 
 	// USB IO
+	boolean connected();
 	size_t send();
 	size_t receive();