From 389a45db9fa1755f6d787c6703d8c43cdd31eebf Mon Sep 17 00:00:00 2001
From: Nico <nico-2006@web.de>
Date: Fri, 20 Feb 2015 14:43:22 +0100
Subject: [PATCH] Updated USB-Serial

Made it a little prettier
---
 examples/Projects/USB-Serial/USB-Serial.ino | 32 ++++++++++-----------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/examples/Projects/USB-Serial/USB-Serial.ino b/examples/Projects/USB-Serial/USB-Serial.ino
index 1c9e7eb..9f6d757 100644
--- a/examples/Projects/USB-Serial/USB-Serial.ino
+++ b/examples/Projects/USB-Serial/USB-Serial.ino
@@ -24,29 +24,29 @@ void setup() {
 
 void loop() {
   // USB -> Serial
-  for (int i = 0; i < USB_EP_SIZE; i++) {
+  uint8_t i;
+  for (i = 0; i < USB_EP_SIZE; i++) {
     // read maximum one EP_SIZE to not block
-    if (Serial.available())
-      Serial1.write(Serial.read());
-    else break;
+    int b = Serial.read();
+    if (b < 0)
+      break;
+    Serial1.write(b);
   }
 
   // Serial -> USB
-  if (Serial1.available()) {
-    // send maximum one EP_SIZE to give the usb some time to flush the buffer
-    uint8_t buff[USB_EP_SIZE - 1];
-    int i = 0;
-    for (i = 0; i < sizeof(buff); i++) {
-      if (Serial1.available())
-        buff[i] = Serial1.read();
-      else break;
-    }
-    Serial.write(buff, i);
+  uint8_t buff[USB_EP_SIZE];
+  for (i = 0; i < sizeof(buff); i++) {
+    // read maximum one EP_SIZE to not block
+    int b = Serial1.read();
+    if (b < 0)
+      break;
+    buff[i] = b;
   }
+  // send maximum one EP_SIZE to give the usb some time to flush the buffer
+  Serial.write(buff, i);
 }
 
-void CDC_LineEncodingEvent(void)
-{
+void CDC_LineEncodingEvent(void) {
   // start HW Serial with new baud rate
   Serial1.end();
   Serial1.begin(Serial.baud());