From 74bcc562a9403e224c40a9db77753b81cd412a70 Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Tue, 2 Oct 2018 17:30:28 +0200
Subject: [PATCH] Transciever: Log values causing Tx underrun

Change-Id: I68e18075eade55034567d96fc774d00a794afeeb
---
 Transceiver52M/Transceiver.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Transceiver52M/Transceiver.cpp b/Transceiver52M/Transceiver.cpp
index 076db3e6..d6ddce8e 100644
--- a/Transceiver52M/Transceiver.cpp
+++ b/Transceiver52M/Transceiver.cpp
@@ -1001,7 +1001,8 @@ void Transceiver::driveTxFIFO()
           // only update latency at the defined frame interval
           if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) {
             mTransmitLatency = mTransmitLatency + GSM::Time(1,0);
-            LOG(INFO) << "new latency: " << mTransmitLatency;
+            LOG(INFO) << "new latency: " << mTransmitLatency << " (underrun "
+                      << radioClock->get() << " vs " << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")";
             mLatencyUpdateTime = radioClock->get();
           }
         }