From 6674582247eed15d14eb3c47b1c6a01e35258258 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 28 Nov 2007 01:16:28 +0000
Subject: [PATCH] Fix #331

---
 src/libprs500/devices/prs505/driver.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/libprs500/devices/prs505/driver.py b/src/libprs500/devices/prs505/driver.py
index 071aa41cf1..dfb0304dc5 100644
--- a/src/libprs500/devices/prs505/driver.py
+++ b/src/libprs500/devices/prs505/driver.py
@@ -229,6 +229,16 @@ class PRS505(Device):
             except DeviceError:
                 time.sleep(3)
                 self.open_osx()
+        if self._card_prefix is not None:
+            cachep = os.path.join(self._card_prefix, self.CACHE_XML)
+            if not os.path.exists(cachep):
+                os.makedirs(os.path.dirname(cachep), mode=0777)
+                f = open(cachep, 'wb')
+                f.write(u'''<?xml version="1.0" encoding="UTF-8"?>
+<cache xmlns="http://www.kinoma.com/FskCache/1">
+</cache>
+'''.encode('utf8'))
+                f.close()
             
     def set_progress_reporter(self, pr):
         self.report_progress = pr