typedef int (*tLVM_ReadFcn)(void *, Uint64, size_t, void *);
typedef int (*tLVM_WriteFcn)(void *, Uint64, size_t, const void *);
-extern int LVM_AddVolume(const char *Name, void *Ptr, tLVM_ReadFcn Read, tLVM_WriteFcn Write);
+extern int LVM_AddVolume(const char *Name, void *Ptr, size_t BlockSize, tLVM_ReadFcn Read, tLVM_WriteFcn Write);
#endif