diff --git a/drivers/DAC-AD5791/AD5791.h b/drivers/DAC-AD5791/AD5791.h
index f562790..454bc97 100644
--- a/drivers/DAC-AD5791/AD5791.h
+++ b/drivers/DAC-AD5791/AD5791.h
@@ -15,6 +15,8 @@ class AD5791: public GenericDAC {
 protected:
 	/// The channel for the latch signal
 	int latch_bit;
+	int clock_bit;
+	int data_bit;
 
 public:
  	int id;
@@ -23,7 +25,9 @@ public:
 	virtual void set_dac(signed dw);
 //	virtual void set_dac_ttls(signed value);
 
-	void set_latch_bit(int le_bit);
+	void set_latch_bit(int bit);
+	void set_clock_bit(int bit);
+	void set_data_bit(int bit);
 
         /**
             inserts necessary serial data transmission to set the dac, at the end of experiment reset the dac
@@ -42,6 +46,10 @@ public:
 	void set_dac_control(state_sequent* exp_sequence, state::iterator where, int input_shift_register);
 
     state_sequent *tx_bit(unsigned int bit);
+
+    state_sequent *select_input_shift_register(unsigned int register_address);
+
+	state_sequent *write_serial_register(unsigned int register_value);
 };
 
 /*class pfg_exception: public std::string {