From 335cd6622a68bd8305849662051b9c7904309d8d Mon Sep 17 00:00:00 2001
From: Pavel Kirienko <pavel.kirienko@gmail.com>
Date: Fri, 25 Sep 2015 00:38:55 +0300
Subject: [PATCH] uavcan_linux::makeApplicationID() - instance_id made optional

---
 libuavcan_drivers/linux/include/uavcan_linux/system_utils.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libuavcan_drivers/linux/include/uavcan_linux/system_utils.hpp b/libuavcan_drivers/linux/include/uavcan_linux/system_utils.hpp
index b4d6ce0a5c..5aaa4d5eef 100644
--- a/libuavcan_drivers/linux/include/uavcan_linux/system_utils.hpp
+++ b/libuavcan_drivers/linux/include/uavcan_linux/system_utils.hpp
@@ -138,11 +138,11 @@ public:
  * It takes the following inputs:
  *  - Unique machine ID
  *  - Node name string (e.g. "org.uavcan.linux_app.dynamic_node_id_server")
- *  - Instance ID byte, e.g. node ID
+ *  - Instance ID byte, e.g. node ID (optional)
  */
 std::array<std::uint8_t, 16> makeApplicationID(const MachineIDReader::MachineID& machine_id,
                                                const std::string& node_name,
-                                               const std::uint8_t instance_id)
+                                               const std::uint8_t instance_id = 0)
 {
     union HalfID
     {