From 91d1657f311c7926bf7103faa874940568b1f43c Mon Sep 17 00:00:00 2001
From: Stephan Menzel <akubra@gmx.org>
Date: Sun, 2 Jun 2013 14:44:40 +0200
Subject: [PATCH] use const char ptr instead of non-const in string literal
 parameters

---
 Adafruit_GPS.cpp | 2 +-
 Adafruit_GPS.h   | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Adafruit_GPS.cpp b/Adafruit_GPS.cpp
index 65b8b1e..8732074 100644
--- a/Adafruit_GPS.cpp
+++ b/Adafruit_GPS.cpp
@@ -247,7 +247,7 @@ void Adafruit_GPS::begin(uint16_t baud)
   delay(10);
 }
 
-void Adafruit_GPS::sendCommand(char *str) {
+void Adafruit_GPS::sendCommand(const char *str) {
   if(gpsSwSerial) gpsSwSerial->println(str);
   else            gpsHwSerial->println(str);
 }
diff --git a/Adafruit_GPS.h b/Adafruit_GPS.h
index 273097d..7c7dd38 100644
--- a/Adafruit_GPS.h
+++ b/Adafruit_GPS.h
@@ -94,7 +94,9 @@ class Adafruit_GPS {
   char *lastNMEA(void);
   boolean newNMEAreceived();
   void common_init(void);
-  void sendCommand(char *);
+
+  void sendCommand(const char *);
+  
   void pause(boolean b);
 
   boolean parseNMEA(char *response);