From 6914af0d632799158fa8de92701ba9707874e8ec Mon Sep 17 00:00:00 2001
From: Cristian Maglie <c.maglie@bug.st>
Date: Mon, 26 May 2014 13:40:29 +0200
Subject: [PATCH] USB CDC available() method returns correct number of bytes in
 buffer.

See #1953
---
 hardware/arduino/cores/arduino/CDC.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hardware/arduino/cores/arduino/CDC.cpp b/hardware/arduino/cores/arduino/CDC.cpp
index 3dbf15df3..3cfd1b756 100644
--- a/hardware/arduino/cores/arduino/CDC.cpp
+++ b/hardware/arduino/cores/arduino/CDC.cpp
@@ -129,7 +129,7 @@ void Serial_::end(void)
 int Serial_::available(void)
 {
 	if (peek_buffer >= 0) {
-		return 1;
+		return 1 + USB_Available(CDC_RX);
 	}
 	return USB_Available(CDC_RX);
 }