From 843527d303b4407f273b10a8986d6a51f5eeb389 Mon Sep 17 00:00:00 2001
From: Lane Kolbly <lane.kolbly@ni.com>
Date: Tue, 31 Mar 2020 13:39:54 -0500
Subject: uhd: mpm: Query prefs per-device for multi-device queries

If a user specifies a multi-device query, such as "serial0=1234,serial1=4321",
we have to look up the preferences for each device. To minimize the
impact to non-x400 devices, I simply push the get_usrp_args call down
into mpmd_impl and mpmd_find.
---
 host/lib/usrp/mpmd/mpmd_find.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'host/lib/usrp/mpmd/mpmd_find.cpp')

diff --git a/host/lib/usrp/mpmd/mpmd_find.cpp b/host/lib/usrp/mpmd/mpmd_find.cpp
index c04615587..9c7ea8958 100644
--- a/host/lib/usrp/mpmd/mpmd_find.cpp
+++ b/host/lib/usrp/mpmd/mpmd_find.cpp
@@ -13,6 +13,7 @@
 #include <uhd/transport/if_addrs.hpp>
 #include <uhd/transport/udp_simple.hpp>
 #include <uhd/types/device_addr.hpp>
+#include <uhdlib/utils/prefs.hpp>
 #include <boost/algorithm/string.hpp>
 #include <boost/asio.hpp>
 #include <future>
@@ -206,7 +207,13 @@ device_addrs_t mpmd_find(const device_addr_t& hint_)
         }
     }
 #endif
-    device_addrs_t hints = separate_device_addr(hint_);
+    device_addrs_t hints_without_prefs = separate_device_addr(hint_);
+    device_addrs_t hints;
+    for (size_t i = 0; i < hints_without_prefs.size(); i++)
+    {
+        hints.push_back(prefs::get_usrp_args(hints_without_prefs[i]));
+    }
+
     if (hint_.has_key("type")) {
         if (std::find(MPM_DEVICE_TYPES.cbegin(), MPM_DEVICE_TYPES.cend(), hint_["type"])
             == MPM_DEVICE_TYPES.cend()) {
-- 
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