From 877e9d4345e11be40931e0a9e7cc194e5549a7c8 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Wed, 10 Jul 2019 10:50:13 -0700
Subject: rfnoc: mb_iface: Add API to query link endianness

---
 host/lib/include/uhdlib/rfnoc/mb_iface.hpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/host/lib/include/uhdlib/rfnoc/mb_iface.hpp b/host/lib/include/uhdlib/rfnoc/mb_iface.hpp
index 33a0e3df0..840fcf709 100644
--- a/host/lib/include/uhdlib/rfnoc/mb_iface.hpp
+++ b/host/lib/include/uhdlib/rfnoc/mb_iface.hpp
@@ -7,6 +7,7 @@
 #ifndef INCLUDED_LIBUHD_MB_IFACE_HPP
 #define INCLUDED_LIBUHD_MB_IFACE_HPP
 
+#include <uhd/types/endianness.hpp>
 #include <uhdlib/rfnoc/chdr_ctrl_xport.hpp>
 #include <uhdlib/rfnoc/chdr_rx_data_xport.hpp>
 #include <uhdlib/rfnoc/chdr_tx_data_xport.hpp>
@@ -40,6 +41,14 @@ public:
      */
     virtual chdr_w_t get_chdr_w() = 0;
 
+    /*! Return the endianness for the link associated with \p local_device_id
+     *
+     * When \p local_device_id is set to NULL_DEVICE_ID, it will return any
+     * endianness associated with this device.
+     */
+    virtual uhd::endianness_t get_endianness(
+        const device_id_t local_device_id = NULL_DEVICE_ID) = 0;
+
     /*! Get the device ID assigned to the motherboard
      *
      * A freshly reset motherboard should return 0.
-- 
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