--- a/thermferm/lcd-buffer.h	Sun Jul 13 17:34:41 2014 +0200
+++ b/thermferm/lcd-buffer.h	Sun Jul 13 21:00:01 2014 +0200
@@ -2,5 +2,13 @@
 #define	LCD_BUFFER_H
 
 
+typedef struct _lcd_rows {
+    struct _lcd_rows	*next;
+    char		row[21 * sizeof(char)];
+} lcd_rows;
+
+
+void lcd_buf_write(int, const char *, ...);
+void lcd_buf_show(void);
 
 #endif