From 1c95fd341eebe442353e302c8ab611b8cf829897 Mon Sep 17 00:00:00 2001
From: gohai <gottfried.haider@gmail.com>
Date: Sun, 15 Dec 2013 15:55:31 -0800
Subject: [PATCH] Serial: Only use workaround if we're using serialEvent

---
 java/libraries/serial/src/processing/serial/Serial.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/java/libraries/serial/src/processing/serial/Serial.java b/java/libraries/serial/src/processing/serial/Serial.java
index aeb76d9ca..1b9e5b8a5 100644
--- a/java/libraries/serial/src/processing/serial/Serial.java
+++ b/java/libraries/serial/src/processing/serial/Serial.java
@@ -461,7 +461,10 @@ public class Serial implements SerialPortEventListener {
           long start = System.nanoTime();
           // this method can be called from the context of another thread
           synchronized (buffer) {
-            toRead = 1;
+            // read one byte at a time if the sketch is using serialEvent
+            if (serialEventMethod != null) {
+              toRead = 1;
+            }
             long len = System.nanoTime()-start;
             if (maxReadSyncTime < len) {
               maxReadSyncTime = len;