diff --git a/lasp/c/lasp_tracer.c b/lasp/c/lasp_tracer.c
index bb3bf06..d404776 100644
--- a/lasp/c/lasp_tracer.c
+++ b/lasp/c/lasp_tracer.c
@@ -29,6 +29,7 @@ int getTracerLevel() {
 
 int TRACERNAME;
 static us ASCEE_FN_LEVEL = 0;
+
 /* setTracerLevel and getTracerLevel are defined as macros in
  * tracer.h */
 #endif
diff --git a/lasp/c/lasp_tracer.h b/lasp/c/lasp_tracer.h
index 5ebf689..33f1aa8 100644
--- a/lasp/c/lasp_tracer.h
+++ b/lasp/c/lasp_tracer.h
@@ -13,6 +13,9 @@
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 static inline void clearScreen() {
     printf("\033c\n");
@@ -228,5 +231,8 @@ void uvartrace_impl(const char* pos,int line,const char* varname,size_t var);
 #endif	// ######################################## TRACER ==1
 
 
+#ifdef __cplusplus
+}
+#endif
 #endif // LASP_TRACER_H
 //////////////////////////////////////////////////////////////////////
diff --git a/lasp/device/CMakeLists.txt b/lasp/device/CMakeLists.txt
index a40bdd7..72b79d3 100644
--- a/lasp/device/CMakeLists.txt
+++ b/lasp/device/CMakeLists.txt
@@ -28,7 +28,7 @@ foreach(cython_file lasp_daq lasp_deviceinfo lasp_daqconfig)
 
     cython_add_module(${cython_file} ${cython_file}.pyx)
 
-    target_link_libraries(${cython_file} cpp_daq ${cpp_daq_linklibs})
+    target_link_libraries(${cython_file} cpp_daq ${cpp_daq_linklibs} lasp_lib)
 
 endforeach()
 
diff --git a/lasp/device/lasp_cppuldaq.cpp b/lasp/device/lasp_cppuldaq.cpp
index f92837d..067291b 100644
--- a/lasp/device/lasp_cppuldaq.cpp
+++ b/lasp/device/lasp_cppuldaq.cpp
@@ -1,4 +1,6 @@
 #include "lasp_cppuldaq.h"
+#include "lasp_config.h"
+#include "lasp_tracer.h"
 #include <atomic>
 #include <cassert>
 #include <chrono>
@@ -526,6 +528,8 @@ Daq *createUlDaqDevice(const DeviceInfo &devinfo,
 
 void fillUlDaqDeviceInfo(vector<DeviceInfo> &devinfolist) {
 
+  fsTRACE(15);
+
   UlError err;
   unsigned int numdevs = MAX_DEV_COUNT_PER_API;
 
@@ -535,8 +539,9 @@ void fillUlDaqDeviceInfo(vector<DeviceInfo> &devinfolist) {
 
   err = ulGetDaqDeviceInventory(interfaceType, devdescriptors,static_cast<unsigned*>(&numdevs));
 
-  if (err != ERR_NO_ERROR)
+  if (err != ERR_NO_ERROR) {
     throw std::runtime_error("UlDaq device inventarization failed");
+  }
 
   for (unsigned i = 0; i < numdevs; i++) {
 
@@ -582,7 +587,7 @@ void fillUlDaqDeviceInfo(vector<DeviceInfo> &devinfolist) {
       devinfo.availableSampleRates.push_back(51000);
 
       devinfo.prefSampleRateIndex = 11;
-  
+
       devinfo.availableFramesPerBlock.push_back(512);
       devinfo.availableFramesPerBlock.push_back(1024);
       devinfo.availableFramesPerBlock.push_back(2048);
@@ -604,4 +609,6 @@ void fillUlDaqDeviceInfo(vector<DeviceInfo> &devinfolist) {
       devinfolist.push_back(devinfo);
     }
   }
+
+  feTRACE(15);
 }