From b790fb093d953d3e36a1f1874f56d4e2543b7747 Mon Sep 17 00:00:00 2001
From: Joe Britton <joe.britton@gmail.com>
Date: Tue, 25 Aug 2015 22:01:51 -0600
Subject: [PATCH] add ping() to novatech driver

---
 artiq/devices/novatech409b/driver.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/artiq/devices/novatech409b/driver.py b/artiq/devices/novatech409b/driver.py
index 5bea7164e..ffe971012 100644
--- a/artiq/devices/novatech409b/driver.py
+++ b/artiq/devices/novatech409b/driver.py
@@ -210,3 +210,15 @@ class Novatech409B:
             result = [r.rstrip().decode() for r in result]
             logger.debug("got device status: %s", result)
             return result
+
+    def ping(self):
+        try:
+            stat = self.get_status()
+        except:
+            return False
+        # check that version number matches is "21"
+        if stat[4][20:] == "21":
+            logger.debug("ping successful")
+            return True
+        else:
+            return False