X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=wiringPi%2FwiringSerial.h;h=430dc73118a36c3310bac400b4ff7d7af466c36c;hb=da38443cb257a3bbbe4ad7f54ee3f569710a2fe7;hp=1a4198c9f7f201cf640dd065f47fb729386a7f05;hpb=98bcb20d9391ebde24f9eb1244f0d238fb1a1dab;p=wiringPi.git

diff --git a/wiringPi/wiringSerial.h b/wiringPi/wiringSerial.h
index 1a4198c..430dc73 100644
--- a/wiringPi/wiringSerial.h
+++ b/wiringPi/wiringSerial.h
@@ -24,14 +24,14 @@
 extern "C" {
 #endif
 
-extern int   serialOpen      (char *device, int baud) ;
-extern void  serialClose     (int fd) ;
-extern void  serialFlush     (int fd) ;
-extern void  serialPutchar   (int fd, unsigned char c) ;
-extern void  serialPuts      (int fd, char *s) ;
-extern void  serialPrintf    (int fd, char *message, ...) ;
-extern int   serialDataAvail (int fd) ;
-extern int   serialGetchar   (int fd) ;
+extern int   serialOpen      (const char *device, const int baud) ;
+extern void  serialClose     (const int fd) ;
+extern void  serialFlush     (const int fd) ;
+extern void  serialPutchar   (const int fd, const unsigned char c) ;
+extern void  serialPuts      (const int fd, const char *s) ;
+extern void  serialPrintf    (const int fd, const char *message, ...) ;
+extern int   serialDataAvail (const int fd) ;
+extern int   serialGetchar   (const int fd) ;
 
 #ifdef __cplusplus
 }