Fixed issue with the unix compile for tests

quad/src/quad_app/callbacks.c

@@ -40,7 +40,7 @@ int cb_packetlog(struct modular_structs* structs, struct metadata *meta, u8 *dat
 	n_msg_received += 1;
 	total_payload_received += length;
 	int len = sprintf(buf, "Packets received: %d", n_msg_received);
-	send_data(structs->hardware_struct.comm.uart, PACKETLOG_ID, 0, buf, len);
+	send_data(structs->hardware_struct.comm.uart, PACKETLOG_ID, 0, (u8*)buf, len);
 	return 0;
 }
 
@@ -54,7 +54,7 @@ int cb_getpacketlogs(struct modular_structs* structs, struct metadata *meta, u8
 	// Message logging number of messages received and size of payload received
 	int len = snprintf((char*)buf, sizeof buf, "%d,%lu", n_msg_received, total_payload_received);
 
-	send_data(structs->hardware_struct.comm.uart, LOG_ID, 0, buf, len >= sizeof(buf) ? 255 : len + 1);
+	send_data(structs->hardware_struct.comm.uart, LOG_ID, 0, (u8*)buf, len >= sizeof(buf) ? 255 : len + 1);
 	return 0;
 }
 
@@ -437,10 +437,6 @@ int cb_addnode(struct modular_structs *structs, struct metadata *meta, unsigned
 int cb_overrideoutput(struct modular_structs *structs, struct metadata *meta, unsigned char *data, unsigned short length) {
 
 	override_t* override_info = &structs->override_struct;
-
-	int offset_mode = offsetof(override_t, mode);
-	int offset_values = offsetof(override_t, values);
-	int offset_value0 = offsetof(override_t, values[0]);
 	int num_overrides = sizeof(structs->override_struct.values)
 		      / sizeof(*structs->override_struct.values);