_PROTOTYPE( PRIVATE void de_hw_conf, (const dpeth_t *); );
_PROTOTYPE( PRIVATE void de_start, (const dpeth_t *); );
_PROTOTYPE( PRIVATE void de_setup_frame, (dpeth_t *); );
-_PROTOTYPE( PRIVATE u16_t de_read_rom, (dpeth_t *, u8_t, u8_t); );
+_PROTOTYPE( PRIVATE u16_t de_read_rom, (const dpeth_t *, u8_t, u8_t); );
_PROTOTYPE( PRIVATE int de_calc_iov_size, (iovec_dat_s_t *); );
_PROTOTYPE( PRIVATE void de_next_iov, (iovec_dat_s_t *); );
_PROTOTYPE( PRIVATE void do_vwrite_s, (const message *, int); );