diff --git a/tests/jack_server_control.cpp b/tests/jack_server_control.cpp
index 85d90369..779d6a09 100644
--- a/tests/jack_server_control.cpp
+++ b/tests/jack_server_control.cpp
@@ -28,6 +28,61 @@
 
 jackctl_server_t * server;
 
+static void print_value(union jackctl_parameter_value value, jackctl_param_type_t type)
+{
+    switch (type) {
+    
+        case JackParamInt:
+            printf("parameter value = %d\n", value.i);
+            break;
+            
+         case JackParamUInt:
+            printf("parameter value = %u\n", value.ui);
+            break;
+            
+         case JackParamChar:
+            printf("parameter value = %c\n", value.c);
+            break;
+        
+         case JackParamString:
+            printf("parameter value = %s\n", value.str);
+            break;
+            
+         case JackParamBool:
+            printf("parameter value = %d\n", value.b);
+            break;
+     }
+}
+
+static void print_parameters(const JSList * node_ptr)
+{
+    while (node_ptr != NULL) {
+        jackctl_parameter_t * parameter = (jackctl_parameter_t *)node_ptr->data;
+        printf("\nparameter name = %s\n", jackctl_parameter_get_name(parameter));
+        printf("parameter id = %c\n", jackctl_parameter_get_id(parameter));
+        printf("parameter short decs = %s\n", jackctl_parameter_get_short_description(parameter));
+        printf("parameter long decs = %s\n", jackctl_parameter_get_long_description(parameter));
+        print_value(jackctl_parameter_get_default_value(parameter), jackctl_parameter_get_type(parameter));
+        node_ptr = jack_slist_next(node_ptr);
+    }
+}
+
+static void print_driver(jackctl_driver_t * driver)
+{
+    printf("\n--------------------------\n");
+    printf("driver = %s\n", jackctl_driver_get_name(driver));
+    printf("-------------------------- \n");
+    print_parameters(jackctl_driver_get_parameters(driver)); 
+}
+
+static void print_internal(jackctl_internal_t * internal)
+{
+    printf("\n-------------------------- \n");
+    printf("internal = %s\n", jackctl_internal_get_name(internal));
+    printf("-------------------------- \n");
+    print_parameters(jackctl_internal_get_parameters(internal));
+}
+
 int main(int argc, char *argv[])
 {
     const JSList * drivers;
@@ -36,17 +91,25 @@ int main(int argc, char *argv[])
      
 	server = jackctl_server_create();
     
+    printf("\n========================== \n");
+    printf("List of drivers \n");
+    printf("========================== \n");
+    
     drivers = jackctl_server_get_drivers_list(server);
     node_ptr = drivers;
     while (node_ptr != NULL) {
-        printf("driver = %s\n", jackctl_driver_get_name((jackctl_driver_t *)node_ptr->data));
+        print_driver((jackctl_driver_t *)node_ptr->data);
         node_ptr = jack_slist_next(node_ptr);
     }
     
+    printf("\n========================== \n");
+    printf("List of internal clients \n");
+    printf("========================== \n");
+    
     internals = jackctl_server_get_internals_list(server);
     node_ptr = internals;
     while (node_ptr != NULL) {
-        printf("internal client = %s\n", jackctl_internal_get_name((jackctl_internal_t *)node_ptr->data));
+        print_internal((jackctl_internal_t *)node_ptr->data);
         node_ptr = jack_slist_next(node_ptr);
     }