add enable/disable function

test.py

@@ -9,6 +9,7 @@ print 'Connecting to device ...'
 conn = zk.connect()
 if conn.get('status'):
     print conn
+    print zk.disable_device()
     print 'Firmware Version: : {}'.format(zk.get_firmware_version())
     # print 'Restarting device'
     # print zk.restart()
@@ -23,6 +24,7 @@ if conn.get('status'):
 #     #             level = 'User'
 #     #         print "[UID %d]: ID: %s, Name: %s, Level: %s, Password: %s" % ( uid, users[uid][0], users[uid][1], level, users[uid][3]  )
 
+    print zk.enable_device()
     print 'Disconnecting to device ...'
     print zk.disconnect()
 #     if status:

zk/base.py

@@ -172,6 +172,26 @@ class ZK(object):
         else:
             return cmd_response
 
+    def disable_device(self):
+        command = const.CMD_DISABLEDEVICE
+        cmd_response = self.__send_command(command)
+        cmd_response['data'] = ''
+        if cmd_response.get('status'):
+            cmd_response['message'] = 'device disabled'
+            return cmd_response
+        else:
+            return cmd_response
+
+    def enable_device(self):
+        command = const.CMD_ENABLEDEVICE
+        cmd_response = self.__send_command(command)
+        cmd_response['data'] = ''
+        if cmd_response.get('status'):
+            cmd_response['message'] = 'device enabled'
+            return cmd_response
+        else:
+            return cmd_response
+
     # def __get_size_user(self):
     #     """Checks a returned packet to see if it returned CMD_PREPARE_DATA,
     #     indicating that data packets are to be sent