5 files changed, 18 insertions, 26 deletions
diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index 09c1448..e1a34ca 100644
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -111,7 +111,7 @@ void yield(void);
 #define bitRead(value, bit) (((value) >> (bit)) & 0x01)
 #define bitSet(value, bit) ((value) |= (1UL << (bit)))
 #define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
-#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
+#define bitWrite(value, bit, bitvalue) ((bitvalue) ? bitSet(value, bit) : bitClear(value, bit))
 
 // avr-libc defines _NOP() since 1.6.2
 #ifndef _NOP
@@ -130,16 +130,16 @@ void initVariant(void);
 
 int atexit(void (*func)()) __attribute__((weak));
 
-void pinMode(uint8_t, uint8_t);
-void digitalWrite(uint8_t, uint8_t);
-int digitalRead(uint8_t);
-int analogRead(uint8_t);
+void pinMode(uint8_t pin, uint8_t mode);
+void digitalWrite(uint8_t pin, uint8_t val);
+int digitalRead(uint8_t pin);
+int analogRead(uint8_t pin);
 void analogReference(uint8_t mode);
-void analogWrite(uint8_t, int);
+void analogWrite(uint8_t pin, int val);
 
 unsigned long millis(void);
 unsigned long micros(void);
-void delay(unsigned long);
+void delay(unsigned long ms);
 void delayMicroseconds(unsigned int us);
 unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout);
 unsigned long pulseInLong(uint8_t pin, uint8_t state, unsigned long timeout);
@@ -147,8 +147,8 @@ unsigned long pulseInLong(uint8_t pin, uint8_t state, unsigned long timeout);
 void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
 uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder);
 
-void attachInterrupt(uint8_t, void (*)(void), int mode);
-void detachInterrupt(uint8_t);
+void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode);
+void detachInterrupt(uint8_t interruptNum);
 
 void setup(void);
 void loop(void);
diff --git a/cores/arduino/Stream.cpp b/cores/arduino/Stream.cpp
index d284631..9eff663 100644
--- a/cores/arduino/Stream.cpp
+++ b/cores/arduino/Stream.cpp
@@ -218,7 +218,6 @@ size_t Stream::readBytes(char *buffer, size_t length)
 
 size_t Stream::readBytesUntil(char terminator, char *buffer, size_t length)
 {
-  if (length < 1) return 0;
   size_t index = 0;
   while (index < length) {
     int c = timedRead();
diff --git a/cores/arduino/USBAPI.h b/cores/arduino/USBAPI.h
index 479ced9..701a14f 100644
--- a/cores/arduino/USBAPI.h
+++ b/cores/arduino/USBAPI.h
@@ -65,6 +65,8 @@ public:
 	void detach();	// Serial port goes down too...
 	void poll();
 	bool wakeupHost(); // returns false, when wakeup cannot be processed
+
+	bool isSuspended();
 };
 extern USBDevice_ USBDevice;
 
diff --git a/cores/arduino/USBCore.cpp b/cores/arduino/USBCore.cpp
index 81f689d..dc6bc38 100644
--- a/cores/arduino/USBCore.cpp
+++ b/cores/arduino/USBCore.cpp
@@ -496,14 +496,13 @@ bool SendConfiguration(int maxlen)
 static
 bool SendDescriptor(USBSetup& setup)
 {
-	int ret;
 	u8 t = setup.wValueH;
 	if (USB_CONFIGURATION_DESCRIPTOR_TYPE == t)
 		return SendConfiguration(setup.wLength);
 
 	InitControl(setup.wLength);
 #ifdef PLUGGABLE_USB_ENABLED
-	ret = PluggableUSB().getDescriptor(setup);
+	int ret = PluggableUSB().getDescriptor(setup);
 	if (ret != 0) {
 		return (ret > 0 ? true : false);
 	}
@@ -855,4 +854,10 @@ bool USBDevice_::wakeupHost()
 	return false;
 }
 
+bool USBDevice_::isSuspended()
+{
+	return (_usbSuspendState & (1 << SUSPI));
+}
+
+
 #endif /* if defined(USBCON) */
diff --git a/cores/arduino/WInterrupts.c b/cores/arduino/WInterrupts.c
index cef1106..ac72dda 100644
--- a/cores/arduino/WInterrupts.c
+++ b/cores/arduino/WInterrupts.c
@@ -65,7 +65,6 @@ static volatile voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS] = {
     nothing,
 #endif
 };
-// volatile static voidFuncPtr twiIntFunc;
 
 void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
   if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
@@ -274,11 +273,6 @@ void detachInterrupt(uint8_t interruptNum) {
   }
 }
 
-/*
-void attachInterruptTwi(void (*userFunc)(void) ) {
-  twiIntFunc = userFunc;
-}
-*/
 
 #define IMPLEMENT_ISR(vect, interrupt) \
   ISR(vect) { \
@@ -314,11 +308,3 @@ IMPLEMENT_ISR(INT2_vect, EXTERNAL_INT_2)
 #endif
 
 #endif
-
-/*
-ISR(TWI_vect) {
-  if(twiIntFunc)
-    twiIntFunc();
-}
-*/
-