From c3e62b073df75131e4c80cc0e254fb7bce2e60f1 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 11 Jan 2010 12:36:17 -0700
Subject: [PATCH] ...

---
 src/calibre/devices/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/calibre/devices/__init__.py b/src/calibre/devices/__init__.py
index 7cf98913f3..466a9ec20a 100644
--- a/src/calibre/devices/__init__.py
+++ b/src/calibre/devices/__init__.py
@@ -97,6 +97,8 @@ def debug(ioreg_to_tmp=False, buf=None):
         out('Devices possibly connected:', end=' ')
         for dev, det in connected_devices:
             out(dev.name, end=', ')
+        if not connected_devices:
+            out('None', end='')
         out(' ')
         for dev, det in connected_devices:
             out('Trying to open', dev.name, '...', end=' ')