1 files changed, 15 insertions, 0 deletions
diff --git a/host/lib/usrp/usrp_e100/clock_ctrl.hpp b/host/lib/usrp/usrp_e100/clock_ctrl.hpp
index 0ae68728e..d613d1473 100644
--- a/host/lib/usrp/usrp_e100/clock_ctrl.hpp
+++ b/host/lib/usrp/usrp_e100/clock_ctrl.hpp
@@ -82,6 +82,21 @@ public:
      * \param enb true to enable
      */
     virtual void enable_tx_dboard_clock(bool enb) = 0;
+    
+    /*!
+     * Use the internal TCXO reference
+     */
+    virtual void use_internal_ref(void) = 0;
+    
+    /*!
+     * Use the external SMA reference
+     */
+    virtual void use_external_ref(void) = 0;
+    
+    /*!
+     * Use external if available, internal otherwise
+     */
+    virtual void use_auto_ref(void) = 0;
 
 };