From 4377da52a078156a844712b8a10eb5bf123a8eb0 Mon Sep 17 00:00:00 2001
From: Fabian Affolter <fabian@affolter-engineering.ch>
Date: Wed, 9 Sep 2015 09:54:42 +0200
Subject: [PATCH] Add variable description

---
 source/components/zwave.markdown | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/source/components/zwave.markdown b/source/components/zwave.markdown
index 26b72d34268..a6c887fd1dc 100644
--- a/source/components/zwave.markdown
+++ b/source/components/zwave.markdown
@@ -31,3 +31,11 @@ As an alternative, the Home Assistant docker image has support for Z-Wave built-
 zwave:
   usb_path: /dev/ttyUSB0
 ```
+
+Configuration variables:
+
+- **usb_path** (*Required*): The port where your device is connected to your Home Assistant host.
+
+```bash
+ls /dev/ttyUSB*
+```