diff -r d676eaec0ee5 -r 7362ebd40f26 thermferm/slcd.h
--- a/thermferm/slcd.h	Mon Feb 22 19:24:49 2016 +0100
+++ b/thermferm/slcd.h	Thu Feb 25 20:12:27 2016 +0100
@@ -6,6 +6,7 @@
 void slcdLEDs(int fd);
 void slcdClear(int fd);
 void slcdPosition(int fd, int x, int y);
+void slcdCharDef(int fd, int index, unsigned char data[8]);
 void slcdPutchar(int fd, unsigned char c);
 void slcdPuts(int fd, const char *string);
 int  slcdInit(int fd, int cols, int rows);