diff --git a/leigh-modcon-controller/src/mecha.c b/leigh-modcon-controller/src/mecha.c
index 71a928915579bff6488c873cf30fc46ea1e14a76..55545f86324037697f099b6db8df85e88ce1b15c 100644
--- a/leigh-modcon-controller/src/mecha.c
+++ b/leigh-modcon-controller/src/mecha.c
@@ -16,6 +16,7 @@ static int netF_create_multicast_ipv4_socket(void);
 
 #define UDP_PORT 5568
 
+// sACN universe #1
 #define MULTICAST_IPV4_ADDR "239.255.0.1"
 #define MULTICAST_TTL 255
 
@@ -125,10 +126,13 @@ err:
 }
 
 /**
- * @brief sACN listen task. 
+ * @brief sACN listener.
+ * 
+ * This function will open an IPv4 multicast socket and when UDP packets are received,
+ * synchronously call a provided packet handler to process the packet. 
  */
-void netFmc_listener(void (*pkt_handler)(const char *buf, size_t buf_len))
-{
+// TODO: Support setting IP/port via argumentation
+void netFmc_listener(void (*pkt_handler)(const char *buf, size_t buf_len)) {
     while (1) {
         int sock;