From 331c88ae82d730991a8d687df9542c6a1e2f8b29 Mon Sep 17 00:00:00 2001
From: Pau Espin Pedrol <pespin@sysmocom.de>
Date: Fri, 13 Sep 2019 16:53:31 +0200
Subject: USRPDevice: Return previous txGain if setting value failed

Change-Id: I0d8fd51586ef01141d4e5896f0fc3029a22743f8
---
 Transceiver52M/device/usrp1/USRPDevice.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'Transceiver52M/device/usrp1/USRPDevice.cpp')

diff --git a/Transceiver52M/device/usrp1/USRPDevice.cpp b/Transceiver52M/device/usrp1/USRPDevice.cpp
index ef3f92a..03a4f80 100644
--- a/Transceiver52M/device/usrp1/USRPDevice.cpp
+++ b/Transceiver52M/device/usrp1/USRPDevice.cpp
@@ -71,6 +71,7 @@ USRPDevice::USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface,
   decimRate = (unsigned int) round(masterClockRate/((GSMRATE) * (double) tx_sps));
   actualSampleRate = masterClockRate/decimRate;
   rxGain = 0;
+  txGain = 0;
 
   /*
    * Undetermined delay b/w ping response timestamp and true
@@ -279,10 +280,11 @@ double USRPDevice::setTxGain(double dB, size_t chan)
 
   if (!m_dbTx->set_gain(dB))
     LOGC(DDEV, ERR) << "Error setting TX gain";
-
+  else
+    txGain = dB;
   writeLock.unlock();
 
-  return dB;
+  return txGain;
 }
 
 
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