def _device_added_cb(self, path):
"""
Called from hal connection when a new device is plugged.
"""
if not self.rfid_connected:
self.rfid_device = find_device()
_logger.debug("DEVICE_ADDED: %s" % self.rfid_device)
if self.rfid_device is not None:
_logger.debug("DEVICE_ADDED: RFID device is not None!")
self.rfid_connected = self._device.do_connect()
if self.rfid_connected:
_logger.debug("DEVICE_ADDED: Connected!")
self.rfid_device.connect("tag-read", self._tag_read_cb)
self.rfid_device.connect("disconnected", self._disconnected_cb)
def _device_added_cb(self, path):
"""
Called from hal connection when a new device is plugged.
"""
if not self.rfid_connected:
self.rfid_device = find_device()
_logger.debug("DEVICE_ADDED: %s" % self.rfid_device)
if self.rfid_device is not None:
_logger.debug("DEVICE_ADDED: RFID device is not None!")
self.rfid_connected = self._device.do_connect()
if self.rfid_connected:
_logger.debug("DEVICE_ADDED: Connected!")
self.rfid_device.connect("tag-read", self._tag_read_cb)
self.rfid_device.connect("disconnected", self._disconnected_cb)
def __init__(self, parent):
Plugin.__init__(self)
self._parent = parent
self._status = False
"""
The following code will initialize a USB RFID reader. Please note that
in order to make this initialization function work, it is necessary to
set the permission for the ttyUSB device to 0666. You can do this by
adding a rule to /etc/udev/rules.d
As root (using sudo or su), copy the following text into a new file in
/etc/udev/rules.d/94-ttyUSB-rules
KERNEL=="ttyUSB[0-9]",MODE="0666"
You only have to do this once.
"""
self.rfid_connected = False
self.rfid_device = find_device()
self.rfid_idn = ''
if self.rfid_device is not None:
_logger.info("RFID device found")
self.rfid_connected = self.rfid_device.do_connect()
if self.rfid_connected:
self.rfid_device.connect("tag-read", self._tag_read_cb)
self.rfid_device.connect("disconnected", self._disconnected_cb)
loop = DBusGMainLoop()
bus = dbus.SystemBus(mainloop=loop)
hmgr_iface = dbus.Interface(
bus.get_object(
HAL_SERVICE,
HAL_MGR_PATH),
HAL_MGR_IFACE)
hmgr_iface.connect_to_signal('DeviceAdded', self._device_added_cb)
self._status = True
