From 8c4fb2d534a3686e35c884e8cc00bd60b946d468 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Mon, 16 Feb 2015 04:39:41 -0700
Subject: [PATCH] novatech409b: add sim mode help

---
 artiq/frontend/novatech409b_controller.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/artiq/frontend/novatech409b_controller.py b/artiq/frontend/novatech409b_controller.py
index 8281f858d..c23a43419 100755
--- a/artiq/frontend/novatech409b_controller.py
+++ b/artiq/frontend/novatech409b_controller.py
@@ -23,7 +23,8 @@ def get_argparser():
         "-s", "--serial-dev",
         default="/dev/ttyUSB0", type=str,
         help="serial port: on Windows \"COMx\","
-        " on Linux a device path (e.g. \"/dev/ttyUSB0\")")
+        " on Linux a device path (e.g. \"/dev/ttyUSB0\")."
+        " Use \"sim\" for simulation mode.")
     verbosity_args(parser)
     return parser