Const correctness for char* strings

[libftdi] / ftdipp / ftdi.hpp

diff --git a/ftdipp/ftdi.hpp b/ftdipp/ftdi.hpp
index a0e7235..a438d96 100644 (file)
--- a/ftdipp/ftdi.hpp
+++ b/ftdipp/ftdi.hpp
@@ -131,7 +131,7 @@ public:
     int read_pins(unsigned char *pins);
 
     /* Misc */
-    char* error_string();
+    const char* error_string();
 
 protected:
     int get_strings();