diff --git a/include/villas/node_type.h b/include/villas/node_type.h
index cc4e35674..d0feab55f 100644
--- a/include/villas/node_type.h
+++ b/include/villas/node_type.h
@@ -17,6 +17,7 @@
 
 /* Forward declarations */
 struct node;
+struct super_node;
 struct sample;
 
 /** C++ like vtable construct for node_types */
@@ -32,13 +33,10 @@ struct node_type {
 	 *
 	 * This callback is invoked once per node-type.
 	 *
-	 * @param argc	Number of arguments passed to the server executable (see main()).
-	 * @param argv	Array of arguments  passed to the server executable (see main()).
-	 * @param cfg	Root libconfig object of global configuration file.
 	 * @retval 0	Success. Everything went well.
 	 * @retval <0	Error. Something went wrong.
 	 */
-	int (*init)(int argc, char *argv[], config_setting_t *cfg);
+	int (*init)(struct super_node *sn);
 
 	/** Global de-initialization per node type.
 	 *
@@ -135,7 +133,7 @@ struct node_type {
  *
  * @see node_type::init
  */
-int node_type_start(struct node_type *vt, int argc, char *argv[], config_setting_t *cfg);
+int node_type_start(struct node_type *vt, struct super_node *sn);
 
 /** De-initialize node type subsystems.
  *
diff --git a/include/villas/nodes/fpga.h b/include/villas/nodes/fpga.h
index 6c15c51ce..fecc3fbe0 100644
--- a/include/villas/nodes/fpga.h
+++ b/include/villas/nodes/fpga.h
@@ -38,7 +38,7 @@ struct fpga {
 };
 
 /** @see node_vtable::init */
-int fpga_init(int argc, char *argv[], config_setting_t *cfg);
+int fpga_init(struct super_node *sn);
 
 /** @see node_vtable::deinit */
 int fpga_deinit();
diff --git a/include/villas/nodes/ngsi.h b/include/villas/nodes/ngsi.h
index aedb2d1b0..3b8b2ac0f 100644
--- a/include/villas/nodes/ngsi.h
+++ b/include/villas/nodes/ngsi.h
@@ -52,7 +52,7 @@ struct ngsi {
  *
  * @see node_vtable::init
  */
-int ngsi_init(int argc, char *argv[], config_setting_t *cfg);
+int ngsi_init(struct super_node *sn);
 
 /** Free global NGSI settings and unmaps shared memory regions.
  *
diff --git a/include/villas/nodes/opal.h b/include/villas/nodes/opal.h
index 4b07fb0d1..4effae1b1 100644
--- a/include/villas/nodes/opal.h
+++ b/include/villas/nodes/opal.h
@@ -42,7 +42,7 @@ struct opal {
  *
  * @see node_vtable::init
  */
-int opal_init(int argc, char *argv[], config_setting_t *cfg);
+int opal_init(struct super_node *sn);
 
 /** Free global OPAL settings and unmaps shared memory regions.
  *
diff --git a/include/villas/nodes/socket.h b/include/villas/nodes/socket.h
index cc1db7628..0d95bd844 100644
--- a/include/villas/nodes/socket.h
+++ b/include/villas/nodes/socket.h
@@ -58,7 +58,7 @@ struct socket {
 
 
 /** @see node_vtable::init */
-int socket_init(int argc, char *argv[], config_setting_t *cfg);
+int socket_init(struct super_node *sn);
 
 /** @see node_vtable::deinit */
 int socket_deinit();
diff --git a/include/villas/nodes/websocket.h b/include/villas/nodes/websocket.h
index 1d512eae9..79b63a722 100644
--- a/include/villas/nodes/websocket.h
+++ b/include/villas/nodes/websocket.h
@@ -64,7 +64,7 @@ struct websocket_destination {
 int websocket_protocol_cb(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len);
 
 /** @see node_vtable::init */
-int websocket_init(int argc, char *argv[], config_setting_t *cfg);
+int websocket_init(struct super_node *sn);
 
 /** @see node_vtable::deinit */
 int websocket_deinit();
diff --git a/lib/node_type.c b/lib/node_type.c
index f92d05bc2..b5a47401a 100644
--- a/lib/node_type.c
+++ b/lib/node_type.c
@@ -5,7 +5,6 @@
  *********************************************************************************/
 
 #include <string.h>
-#include <libconfig.h>
 
 #include "sample.h"
 #include "node.h"
@@ -14,7 +13,7 @@
 #include "config.h"
 #include "plugin.h"
 
-int node_type_start(struct node_type *vt, int argc, char *argv[], config_setting_t *cfg)
+int node_type_start(struct node_type *vt, struct super_node *sn)
 {
 	int ret;
 	
@@ -23,7 +22,7 @@ int node_type_start(struct node_type *vt, int argc, char *argv[], config_setting
 
 	info("Initializing " YEL("%s") " node type which is used by %zu nodes", plugin_name(vt), list_length(&vt->instances));
 	{ INDENT
-		ret = vt->init ? vt->init(argc, argv, cfg) : 0;
+		ret = vt->init ? vt->init(sn) : 0;
 	}	
 
 	if (ret == 0)
diff --git a/lib/nodes/fpga.c b/lib/nodes/fpga.c
index 5065814f1..88da3e7a3 100644
--- a/lib/nodes/fpga.c
+++ b/lib/nodes/fpga.c
@@ -30,20 +30,21 @@ void fpga_dump(struct fpga *f)
 	fpga_card_dump(c);
 }
 
-int fpga_init(int argc, char *argv[], config_setting_t *cfg)
+int fpga_init(struct super_node *sn)
 {
 	int ret;
-	config_setting_t *cfg_fpgas;
+	config_setting_t *cfg, *cfg_fpgas;
 	
 	ret = pci_init(&pci);
 	if (ret)
-		cerror(cfg, "Failed to initialize PCI sub-system");
+		error("Failed to initialize PCI sub-system");
 	
 	ret = vfio_init(&vc);
 	if (ret)
-		cerror(cfg, "Failed to initiliaze VFIO sub-system");
+		error("Failed to initiliaze VFIO sub-system");
 
 	/* Parse FPGA configuration */
+	cfg = config_root_setting(&sn->cfg);
 	cfg_fpgas = config_setting_lookup(cfg, "fpgas");
 	if (!cfg_fpgas)
 		cerror(cfg, "Config file is missing 'fpgas' section");
diff --git a/lib/nodes/ngsi.c b/lib/nodes/ngsi.c
index 8dea91e6b..c8b12348d 100644
--- a/lib/nodes/ngsi.c
+++ b/lib/nodes/ngsi.c
@@ -368,8 +368,12 @@ out:	json_decref(request);
 	return ret;
 }
 
-int ngsi_init(int argc, char *argv[], config_setting_t *cfg)
+int ngsi_init(struct super_node *sn)
 {
+	config_setting_t *cfg;
+	
+	cfg = config_root_setting(&sn->cfg);
+	
 	const char *tname;
 	if (config_setting_lookup_string(cfg, "name", &tname)) {
 		name = strdup(tname);
diff --git a/lib/nodes/opal.c b/lib/nodes/opal.c
index 3672b4dca..3e562996e 100644
--- a/lib/nodes/opal.c
+++ b/lib/nodes/opal.c
@@ -25,18 +25,18 @@ static Opal_GenAsyncParam_Ctrl params;	/** String and Float parameters, provided
 	
 static pthread_mutex_t lock;		/** Big Global Lock for libOpalAsync API */
 
-int opal_init(int argc, char *argv[], config_setting_t *cfg)
+int opal_init(struct super_node *sn)
 {
 	int err;
 
-	if (argc != 4)
+	if (sn->cli.argc != 4)
 		return -1;
 
 	pthread_mutex_init(&lock, NULL);
 
-	async_shmem_name = argv[1];
-	async_shmem_size = atoi(argv[2]);
-	print_shmem_name = argv[3];
+	async_shmem_name = sn->cli.argv[1];
+	async_shmem_size = atoi(sn->cli.argv[2]);
+	print_shmem_name = sn->cli.argv[3];
 
 	/* Enable the OpalPrint function. This prints to the OpalDisplay. */
 	err = OpalSystemCtrl_Register(print_shmem_name);
diff --git a/lib/nodes/socket.c b/lib/nodes/socket.c
index 678bc1be4..2b2c374a8 100644
--- a/lib/nodes/socket.c
+++ b/lib/nodes/socket.c
@@ -36,7 +36,7 @@ static struct plugin p;
 /* Private static storage */
 struct list interfaces;
 
-int socket_init(int argc, char *argv[], config_setting_t *cfg)
+int socket_init(struct super_node *sn)
 {
 	int ret;
 
diff --git a/src/fpga.c b/src/fpga.c
index 6850d08ec..e7bce9fe9 100644
--- a/src/fpga.c
+++ b/src/fpga.c
@@ -68,7 +68,7 @@ int main(int argc, char *argv[])
 	memory_init(sn.hugepages);
 
 	/* Initialize VILLASfpga card */
-	ret = fpga_init(argc, argv, config_root_setting(&sn.cfg));
+	ret = fpga_init(&sn);
 	if (ret)
 		error("Failed to initialize FPGA card");
 	
diff --git a/src/pipe.c b/src/pipe.c
index 3403397d1..2635b585c 100644
--- a/src/pipe.c
+++ b/src/pipe.c
@@ -231,7 +231,7 @@ int main(int argc, char *argv[])
 	if (reverse)
 		node_reverse(node);
 
-	ret = node_type_start(node->_vt, argc, argv, config_root_setting(&sn.cfg));
+	ret = node_type_start(node->_vt, &sn);
 	if (ret)
 		error("Failed to intialize node type: %s", node_name(node));
 	
diff --git a/src/test-rtt.c b/src/test-rtt.c
index 5a2a65414..09c3cc714 100644
--- a/src/test-rtt.c
+++ b/src/test-rtt.c
@@ -86,7 +86,7 @@ int main(int argc, char *argv[])
 	if (!node)
 		error("There's no node with the name '%s'", argv[3]);
 
-	node_type_start(node->_vt, argc-3, argv+3, config_root_setting(&sn.cfg));
+	node_type_start(node->_vt, &sn);
 	node_start(node);
 
 	/* Parse Arguments */