From ac0ae47eae033fe52778b85c43d4d1bb557efbde Mon Sep 17 00:00:00 2001
From: Stefan <stefan@layereight.de>
Date: Mon, 24 Dec 2018 18:15:08 +0100
Subject: [PATCH] fix blocking when tag is on the reader for some time, fix was
 taken from calvinzirk/pi-rc522

---
 pirc522/rfid.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pirc522/rfid.py b/pirc522/rfid.py
index bc00ea2..ce372eb 100644
--- a/pirc522/rfid.py
+++ b/pirc522/rfid.py
@@ -395,6 +395,11 @@ def wait_for_tag(self):
         # wait for it
         waiting = True
         while waiting:
+            self.init()
+            #self.irq.clear()
+            self.dev_write(0x04, 0x00)
+            self.dev_write(0x02, 0xA0)
+
             self.dev_write(0x09, 0x26)
             self.dev_write(0x01, 0x0C)
             self.dev_write(0x0D, 0x87)