diff --git a/Transceiver52M/device/common/radioDevice.h b/Transceiver52M/device/common/radioDevice.h
index c504b3ac..0dc38d5a 100644
--- a/Transceiver52M/device/common/radioDevice.h
+++ b/Transceiver52M/device/common/radioDevice.h
@@ -87,11 +87,10 @@ class RadioDevice {
         @param len number of samples to write.
         @param underrun Set if radio does not have data to transmit, e.g. data not being sent fast enough
         @param timestamp The timestamp of the first sample of the data buffer.
-        @param isControl Set if data is a control packet, e.g. a ping command
         @return The number of samples actually written
   */
   virtual int writeSamples(std::vector<short *> &bufs, int len, bool *underrun,
-                           TIMESTAMP timestamp, bool isControl = false) = 0;
+                           TIMESTAMP timestamp) = 0;
 
   /** Update the alignment between the read and write timestamps */
   virtual bool updateAlignment(TIMESTAMP timestamp)=0;
diff --git a/Transceiver52M/device/lms/LMSDevice.cpp b/Transceiver52M/device/lms/LMSDevice.cpp
index 0cd80028..932817d2 100644
--- a/Transceiver52M/device/lms/LMSDevice.cpp
+++ b/Transceiver52M/device/lms/LMSDevice.cpp
@@ -858,8 +858,7 @@ void LMSDevice::update_stream_stats_tx(size_t chan, bool *underrun)
 }
 
 int LMSDevice::writeSamples(std::vector < short *>&bufs, int len,
-			    bool * underrun, unsigned long long timestamp,
-			    bool isControl)
+			    bool * underrun, unsigned long long timestamp)
 {
 	int rc = 0;
 	unsigned int i;
@@ -868,11 +867,6 @@ int LMSDevice::writeSamples(std::vector < short *>&bufs, int len,
 	tx_metadata.waitForTimestamp = true;
 	tx_metadata.timestamp = timestamp - ts_offset;	/* Shift Tx time by offset */
 
-	if (isControl) {
-		LOGC(DDEV, ERROR) << "Control packets not supported";
-		return 0;
-	}
-
 	if (bufs.size() != chans) {
 		LOGC(DDEV, ERROR) << "Invalid channel combination " << bufs.size();
 		return -1;
diff --git a/Transceiver52M/device/lms/LMSDevice.h b/Transceiver52M/device/lms/LMSDevice.h
index c2fd2f65..5b6330ab 100644
--- a/Transceiver52M/device/lms/LMSDevice.h
+++ b/Transceiver52M/device/lms/LMSDevice.h
@@ -117,12 +117,10 @@ public:
 	@param len number of samples to write.
 	@param underrun Set if LMS does not have data to transmit, e.g. data not being sent fast enough
 	@param timestamp The timestamp of the first sample of the data buffer.
-	@param isControl Set if data is a control packet, e.g. a ping command
 	@return The number of samples actually written
 	*/
 	int writeSamples(std::vector < short *>&bufs, int len, bool * underrun,
-			 TIMESTAMP timestamp = 0xffffffff, bool isControl =
-			 false);
+			 TIMESTAMP timestamp = 0xffffffff);
 
 	/** Update the alignment between the read and write timestamps */
 	bool updateAlignment(TIMESTAMP timestamp);
diff --git a/Transceiver52M/device/uhd/UHDDevice.cpp b/Transceiver52M/device/uhd/UHDDevice.cpp
index ddb6631f..ad562500 100644
--- a/Transceiver52M/device/uhd/UHDDevice.cpp
+++ b/Transceiver52M/device/uhd/UHDDevice.cpp
@@ -804,7 +804,7 @@ int uhd_device::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 }
 
 int uhd_device::writeSamples(std::vector<short *> &bufs, int len, bool *underrun,
-			     unsigned long long timestamp,bool isControl)
+			     unsigned long long timestamp)
 {
 	uhd::tx_metadata_t metadata;
 	metadata.has_time_spec = true;
@@ -814,12 +814,6 @@ int uhd_device::writeSamples(std::vector<short *> &bufs, int len, bool *underrun
 
 	*underrun = false;
 
-	// No control packets
-	if (isControl) {
-		LOGC(DDEV, ERROR) << "Control packets not supported";
-		return 0;
-	}
-
 	if (bufs.size() != chans) {
 		LOGC(DDEV, ALERT) << "Invalid channel combination " << bufs.size();
 		return -1;
diff --git a/Transceiver52M/device/uhd/UHDDevice.h b/Transceiver52M/device/uhd/UHDDevice.h
index 4809b255..1e66246c 100644
--- a/Transceiver52M/device/uhd/UHDDevice.h
+++ b/Transceiver52M/device/uhd/UHDDevice.h
@@ -77,7 +77,7 @@ public:
 			TIMESTAMP timestamp, bool *underrun);
 
 	int writeSamples(std::vector<short *> &bufs, int len, bool *underrun,
-			 TIMESTAMP timestamp, bool isControl);
+			 TIMESTAMP timestamp);
 
 	bool updateAlignment(TIMESTAMP timestamp);
 
diff --git a/Transceiver52M/device/usrp1/USRPDevice.cpp b/Transceiver52M/device/usrp1/USRPDevice.cpp
index 5eaca07e..1a9a7e11 100644
--- a/Transceiver52M/device/usrp1/USRPDevice.cpp
+++ b/Transceiver52M/device/usrp1/USRPDevice.cpp
@@ -515,9 +515,8 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 #endif
 }
 
-int USRPDevice::writeSamples(std::vector<short *> &bufs, int len,
-                             bool *underrun, unsigned long long timestamp,
-                             bool isControl)
+int USRPDevice::writeSamplesControl(std::vector<short *> &bufs, int len,
+                             bool *underrun, unsigned long long timestamp, bool isControl)
 {
   writeLock.lock();
 
@@ -571,6 +570,12 @@ int USRPDevice::writeSamples(std::vector<short *> &bufs, int len,
 #endif
 }
 
+int USRPDevice::writeSamples(std::vector<short *> &bufs, int len,
+                             bool *underrun, unsigned long long timestamp)
+{
+  return writeSamplesControl(bufs, len, underrun, timestamp, false);
+}
+
 bool USRPDevice::updateAlignment(TIMESTAMP timestamp)
 {
 #ifndef SWLOOPBACK
@@ -580,7 +585,7 @@ bool USRPDevice::updateAlignment(TIMESTAMP timestamp)
   bool tmpUnderrun;
 
   std::vector<short *> buf(1, data);
-  if (writeSamples(buf, 1, &tmpUnderrun, timestamp & 0x0ffffffffll, true)) {
+  if (writeSamplesControl(buf, 1, &tmpUnderrun, timestamp & 0x0ffffffffll, true)) {
     pingTimestamp = timestamp;
     return true;
   }
diff --git a/Transceiver52M/device/usrp1/USRPDevice.h b/Transceiver52M/device/usrp1/USRPDevice.h
index 0cf5ec36..a4a0886a 100644
--- a/Transceiver52M/device/usrp1/USRPDevice.h
+++ b/Transceiver52M/device/usrp1/USRPDevice.h
@@ -82,6 +82,9 @@ private:
   double rxGain;
   double txGain;
 
+  int writeSamplesControl(std::vector<short *> &bufs, int len, bool *underrun,
+                   TIMESTAMP timestamp = 0xffffffff, bool isControl = false);
+
 #ifdef SWLOOPBACK
   short loopbackBuffer[1000000];
   int loopbackBufferSize;
@@ -127,11 +130,10 @@ private:
         @param len number of samples to write.
         @param underrun Set if USRP does not have data to transmit, e.g. data not being sent fast enough
         @param timestamp The timestamp of the first sample of the data buffer.
-        @param isControl Set if data is a control packet, e.g. a ping command
         @return The number of samples actually written
   */
   int writeSamples(std::vector<short *> &bufs, int len, bool *underrun,
-                   TIMESTAMP timestamp = 0xffffffff, bool isControl = false);
+                   TIMESTAMP timestamp = 0xffffffff);
 
   /** Update the alignment between the read and write timestamps */
   bool updateAlignment(TIMESTAMP timestamp);