diff --git a/modriv.h b/modriv.h
index 2b7cd1b9..00ff839f 100644
--- a/modriv.h
+++ b/modriv.h
@@ -14,6 +14,7 @@
 #define MOTREDO -1
 #define MOTFAIL  0
 #define MOTOK    1
+#define TEXTPARLEN 1024
 
   typedef struct __AbstractMoDriv {
                            /* general motor driver interface 
@@ -35,6 +36,8 @@
                            void   (*ListDriverPar)(void *self, char *motorName,
                                   SConnection *pCon);
                            void   (*KillPrivate)(void *self);
+                           int   (*GetDriverTextPar)(void *self, char *name, 
+                                  char *textPar);
                            } MotorDriver;
                              
  /* the first fields above HAVE to be IDENTICAL to those below */