diff --git a/lib/logitech/unifying_receiver/base.py b/lib/logitech/unifying_receiver/base.py
index 9e3e4a71..5e74dce0 100644
--- a/lib/logitech/unifying_receiver/base.py
+++ b/lib/logitech/unifying_receiver/base.py
@@ -8,20 +8,12 @@ from __future__ import absolute_import, division, print_function, unicode_litera
 from time import time as _timestamp
 from random import getrandbits as _random_bits
 
-from struct import pack as _pack
-try:
-	unicode
-	# if Python2, unicode_literals will mess our first (un)pack() argument
-	_pack_str = _pack
-	_pack = lambda x, *args: _pack_str(str(x), *args)
-except:
-	pass
-
 from logging import getLogger, DEBUG as _DEBUG
 _log = getLogger('LUR.base')
 del getLogger
 
-from .common import strhex as _strhex, KwException as _KwException
+
+from .common import strhex as _strhex, KwException as _KwException, pack as _pack
 from . import hidpp10 as _hidpp10
 from . import hidpp20 as _hidpp20
 import hidapi as _hid
@@ -242,7 +234,8 @@ def _skip_incoming(handle, ihandle, notifications_hook):
 				report_id = ord(data[:1])
 				assert (report_id == 0x10 and len(data) == _SHORT_MESSAGE_SIZE or
 						report_id == 0x11 and len(data) == _LONG_MESSAGE_SIZE or
-						report_id == 0x20 and len(data) == _MEDIUM_MESSAGE_SIZE)
+						report_id == 0x20 and len(data) == _MEDIUM_MESSAGE_SIZE), \
+						"unexpected message size: report_id %02X message %s" % (report_id, _strhex(data))
 			if notifications_hook:
 				n = make_notification(ord(data[1:2]), data[2:])
 				if n:
diff --git a/lib/logitech/unifying_receiver/common.py b/lib/logitech/unifying_receiver/common.py
index 1b4bf790..692722d0 100644
--- a/lib/logitech/unifying_receiver/common.py
+++ b/lib/logitech/unifying_receiver/common.py
@@ -5,14 +5,14 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
 from binascii import hexlify as _hexlify
-from struct import pack as _pack, unpack as _unpack
+from struct import pack, unpack
 try:
 	unicode
 	# if Python2, unicode_literals will mess our first (un)pack() argument
-	_pack_str = _pack
-	_unpack_str = _unpack
-	_pack = lambda x, *args: _pack_str(str(x), *args)
-	_unpack = lambda x, *args: _unpack_str(str(x), *args)
+	_pack_str = pack
+	_unpack_str = unpack
+	pack = lambda x, *args: _pack_str(str(x), *args)
+	unpack = lambda x, *args: _unpack_str(str(x), *args)
 except:
 	pass
 
@@ -57,7 +57,6 @@ class NamedInt(int):
 		if other is not None:
 			raise TypeError("Unsupported type " + str(type(other)))
 
-
 	def __ne__(self, other):
 		return not self.__eq__(other)
 
@@ -205,7 +204,7 @@ def bytes2int(x):
 	assert isinstance(x, bytes)
 	assert len(x) < 9
 	qx = (b'\x00' * 8) + x
-	result, = _unpack('!Q', qx[-8:])
+	result, = unpack('!Q', qx[-8:])
 	# assert x == int2bytes(result, len(x))
 	return result
 
@@ -216,7 +215,7 @@ def int2bytes(x, count=None):
 	If 'count' is not given, the necessary number of bytes is computed.
 	"""
 	assert isinstance(x, int)
-	result = _pack('!Q', x)
+	result = pack('!Q', x)
 	assert isinstance(result, bytes)
 	# assert x == bytes2int(result)
 
diff --git a/lib/logitech/unifying_receiver/hidpp20.py b/lib/logitech/unifying_receiver/hidpp20.py
index 4b40d52c..638e2f23 100644
--- a/lib/logitech/unifying_receiver/hidpp20.py
+++ b/lib/logitech/unifying_receiver/hidpp20.py
@@ -8,23 +8,15 @@ from logging import getLogger, DEBUG as _DEBUG
 _log = getLogger('LUR.hidpp20')
 del getLogger
 
-from struct import pack as _pack, unpack as _unpack
-try:
-	unicode
-	# if Python2, unicode_literals will mess our first (un)pack() argument
-	_pack_str = _pack
-	_unpack_str = _unpack
-	_pack = lambda x, *args: _pack_str(str(x), *args)
-	_unpack = lambda x, *args: _unpack_str(str(x), *args)
-except:
-	pass
 
 # from weakref import proxy as _proxy
 
 from .common import (FirmwareInfo as _FirmwareInfo,
 					ReprogrammableKeyInfo as _ReprogrammableKeyInfo,
 					KwException as _KwException,
-					NamedInts as _NamedInts)
+					NamedInts as _NamedInts,
+					pack as _pack,
+					unpack as _unpack)
 from . import special_keys
 
 #
diff --git a/lib/logitech/unifying_receiver/notifications.py b/lib/logitech/unifying_receiver/notifications.py
new file mode 100644
index 00000000..75affa7b
--- /dev/null
+++ b/lib/logitech/unifying_receiver/notifications.py
@@ -0,0 +1,249 @@
+#
+# Handles incoming events from the receiver/devices, updating the related
+# status object as appropiate.
+#
+
+from __future__ import absolute_import, division, print_function, unicode_literals
+
+from logging import getLogger, DEBUG as _DEBUG
+_log = getLogger('LUR.notifications')
+del getLogger
+
+from .common import strhex as _strhex, unpack as _unpack
+from . import hidpp10 as _hidpp10
+from . import hidpp20 as _hidpp20
+from .status import KEYS as _K, ALERT as _ALERT
+
+_R = _hidpp10.REGISTERS
+_F = _hidpp20.FEATURE
+
+#
+#
+#
+
+def process(device, notification):
+	assert device
+	assert notification
+
+	assert hasattr(device, 'status')
+	status = device.status
+	assert status is not None
+
+	if device.kind is None:
+		return _process_receiver_notification(device, status, notification)
+
+	return _process_device_notification(device, status, notification)
+
+#
+#
+#
+
+def _process_receiver_notification(receiver, status, n):
+	# supposedly only 0x4x notifications arrive for the receiver
+	assert n.sub_id & 0x40 == 0x40
+
+	# pairing lock notification
+	if n.sub_id == 0x4A:
+		status.lock_open = bool(n.address & 0x01)
+		reason = 'pairing lock is ' + ('open' if status.lock_open else 'closed')
+		_log.info("%s: %s", receiver, reason)
+
+		status[_K.ERROR] = None
+		if status.lock_open:
+			status.new_device = None
+
+		pair_error = ord(n.data[:1])
+		if pair_error:
+			status[_K.ERROR] = error_string = _hidpp10.PAIRING_ERRORS[pair_error]
+			status.new_device = None
+			_log.warn("pairing error %d: %s", pair_error, error_string)
+
+		status.changed(reason=reason)
+		return True
+
+	_log.warn("%s: unhandled notification %s", receiver, n)
+
+#
+#
+#
+
+def _process_device_notification(device, status, n):
+	# incoming packets with SubId >= 0x80 are supposedly replies from
+	# HID++ 1.0 requests, should never get here
+	assert n.sub_id & 0x80 == 0
+
+	# 0x40 to 0x7F appear to be HID++ 1.0 notifications
+	if n.sub_id >= 0x40:
+		return _process_hidpp10_notification(device, status, n)
+
+	# At this point, we need to know the device's protocol, otherwise it's
+	# possible to not know how to handle it.
+	assert device.protocol is not None
+
+	# some custom battery events for HID++ 1.0 devices
+	if device.protocol < 2.0:
+		return _process_hidpp10_custom_notification(device, status, n)
+
+	# assuming 0x00 to 0x3F are feature (HID++ 2.0) notifications
+	assert device.features
+	try:
+		feature = device.features[n.sub_id]
+	except IndexError:
+		_log.warn("%s: notification from invalid feature index %02X: %s", device, n.sub_id, n)
+		return False
+
+	return _process_feature_notification(device, status, n, feature)
+
+
+def _process_hidpp10_custom_notification(device, status, n):
+	if _log.isEnabledFor(_DEBUG):
+		_log.debug("%s (%s) custom notification %s", device, device.protocol, n)
+
+	if n.sub_id in (_R.battery_status, _R.battery_charge):
+		assert n.data[-1:] == b'\x00'
+		# message layout: 10 ix <register> <xx> <yy> <zz> <00>
+		data = '%c%s' % (n.address, n.data)
+		charge, status_text = _hidpp10.parse_battery_status(n.sub_id, data)
+		status.set_battery_info(charge, status_text)
+		return True
+
+	if n.sub_id == _R.illumination:
+		# message layout: 10 ix 17("address")  <??> <?> <??> <light level 1=off..5=max>
+		# TODO anything we can do with this?
+		_log.info("illumination event: %s", n)
+		return True
+
+	_log.warn("%s: unrecognized %s", device, n)
+
+
+def _process_hidpp10_notification(device, status, n):
+	# unpair notification
+	if n.sub_id == 0x40:
+		if n.address == 0x02:
+			# device un-paired
+			status.clear()
+			device.wpid = None
+			device.status = None
+			status.changed(active=False, alert=_ALERT.ALL, reason='unpaired')
+		else:
+			_log.warn("%s: disconnection with unknown type %02X: %s", device, n.address, n)
+		return True
+
+	# wireless link notification
+	if n.sub_id == 0x41:
+		protocol_name = ('unifying (eQuad DJ)' if n.address == 0x04
+					else 'eQuad' if n.address == 0x03
+					else None)
+		if protocol_name:
+			if _log.isEnabledFor(_DEBUG):
+				wpid = _strhex(n.data[2:3] + n.data[1:2])
+				assert wpid == device.wpid, "%s wpid mismatch, got %s" % (device, wpid)
+
+			flags = ord(n.data[:1]) & 0xF0
+			link_encrypyed = bool(flags & 0x20)
+			link_established = not (flags & 0x40)
+			if _log.isEnabledFor(_DEBUG):
+				sw_present = bool(flags & 0x10)
+				has_payload = bool(flags & 0x80)
+				_log.debug("%s: %s connection notification: software=%s, encrypted=%s, link=%s, payload=%s",
+							device, protocol_name, sw_present, link_encrypyed, link_established, has_payload)
+			status[_K.LINK_ENCRYPTED] = link_encrypyed
+			status.changed(active=link_established)
+		else:
+			_log.warn("%s: connection notification with unknown protocol %02X: %s", device.number, n.address, n)
+
+		return True
+
+	if n.sub_id == 0x49:
+		# raw input event? just ignore it
+		# if n.address == 0x01, no idea what it is, but they keep on coming
+		# if n.address == 0x03, appears to be an actual input event,
+		#     because they only come when input happents
+		return True
+
+	# power notification
+	if n.sub_id == 0x4B:
+		if n.address == 0x01:
+			if _log.isEnabledFor(_DEBUG):
+				_log.debug("%s: device powered on", device)
+			reason = str(status) or 'powered on'
+			status.changed(active=True, alert=_ALERT.NOTIFICATION, reason=reason)
+		else:
+			_log.info("%s: unknown %s", device, n)
+		return True
+
+	_log.warn("%s: unrecognized %s", device, n)
+
+
+def _process_feature_notification(device, status, n, feature):
+	if feature == _F.BATTERY_STATUS:
+		if n.address == 0x00:
+			discharge = ord(n.data[:1])
+			battery_status = ord(n.data[1:2])
+			status.set_battery_info(discharge, _hidpp20.BATTERY_STATUS[battery_status])
+		else:
+			_log.info("%s: unknown BATTERY %s", device, n)
+		return True
+
+	# TODO: what are REPROG_CONTROLS_V{2,3}?
+	if feature == _F.REPROG_CONTROLS:
+		if n.address == 0x00:
+			_log.info("%s: reprogrammable key: %s", device, n)
+		else:
+			_log.info("%s: unknown REPROGRAMMABLE KEYS %s", device, n)
+		return True
+
+	if feature == _F.WIRELESS_DEVICE_STATUS:
+		if n.address == 0x00:
+			if _log.isEnabledFor(_DEBUG):
+				_log.debug("wireless status: %s", n)
+			if n.data[0:3] == b'\x01\x01\x01':
+				status.changed(active=True, alert=_ALERT.NOTIFICATION, reason='powered on')
+			else:
+				_log.info("%s: unknown WIRELESS %s", device, n)
+		else:
+			_log.info("%s: unknown WIRELESS %s", device, n)
+		return True
+
+	if feature == _F.SOLAR_DASHBOARD:
+		if n.data[5:9] == b'GOOD':
+			charge, lux, adc = _unpack('!BHH', n.data[:5])
+			status[_K.BATTERY_LEVEL] = charge
+			# guesstimate the battery voltage, emphasis on 'guess'
+			status[_K.BATTERY_STATUS] = '%1.2fV' % (adc * 2.67793237653 / 0x0672)
+			if n.address == 0x00:
+				status[_K.LIGHT_LEVEL] = None
+				status[_K.BATTERY_CHARGING] = None
+				status.changed(active=True)
+			elif n.address == 0x10:
+				status[_K.LIGHT_LEVEL] = lux
+				status[_K.BATTERY_CHARGING] = lux > 200
+				status.changed(active=True)
+			elif n.address == 0x20:
+				_log.debug("%s: Light Check button pressed", device)
+				status.changed(alert=_ALERT.SHOW_WINDOW)
+				# first cancel any reporting
+				# device.feature_request(_F.SOLAR_DASHBOARD)
+				# trigger a new report chain
+				reports_count = 15
+				reports_period = 2  # seconds
+				device.feature_request(_F.SOLAR_DASHBOARD, 0x00, reports_count, reports_period)
+			else:
+				_log.info("%s: unknown SOLAR CHAGE %s", device, n)
+		else:
+			_log.warn("%s: SOLAR CHARGE not GOOD? %s", device, n)
+		return True
+
+	if feature == _F.TOUCHMOUSE_RAW_POINTS:
+		if n.address == 0x00:
+			_log.info("%s: TOUCH MOUSE points %s", device, n)
+		elif n.address == 0x10:
+			touch = ord(n.data[:1])
+			button_down = bool(touch & 0x02)
+			mouse_lifted = bool(touch & 0x01)
+			_log.info("%s: TOUCH MOUSE status: button_down=%s mouse_lifted=%s", device, button_down, mouse_lifted)
+		else:
+			_log.warn("%s: unknown TOUCH MOUSE %s", device, n)
+		return True
+
+	_log.info("%s: unrecognized %s for feature %s (index %02X)", device, n, feature, n.sub_id)
diff --git a/lib/logitech/unifying_receiver/status.py b/lib/logitech/unifying_receiver/status.py
index ef326256..9f1ab3ee 100644
--- a/lib/logitech/unifying_receiver/status.py
+++ b/lib/logitech/unifying_receiver/status.py
@@ -7,20 +7,12 @@ from __future__ import absolute_import, division, print_function, unicode_litera
 from time import time as _timestamp
 # from weakref import proxy as _proxy
 
-from struct import unpack as _unpack
-try:
-	unicode
-	# if Python2, unicode_literals will mess our first (un)pack() argument
-	_unpack_str = _unpack
-	_unpack = lambda x, *args: _unpack_str(str(x), *args)
-except:
-	pass
-
 from logging import getLogger, DEBUG as _DEBUG
 _log = getLogger('LUR.status')
 del getLogger
 
-from .common import NamedInts as _NamedInts, NamedInt as _NamedInt, strhex as _strhex
+
+from .common import NamedInts as _NamedInts, NamedInt as _NamedInt
 from . import hidpp10 as _hidpp10
 from . import hidpp20 as _hidpp20
 
@@ -48,7 +40,20 @@ _BATTERY_ATTENTION_LEVEL = 5
 
 # If no updates have been receiver from the device for a while, ping the device
 # and update it status accordinly.
-_STATUS_TIMEOUT = 5 * 60  # seconds
+# _STATUS_TIMEOUT = 5 * 60  # seconds
+
+#
+#
+#
+
+def attach_to(device, changed_callback):
+	assert device
+	assert changed_callback
+
+	if device.kind is None:
+		device.status = ReceiverStatus(device, changed_callback)
+	else:
+		device.status = DeviceStatus(device, changed_callback)
 
 #
 #
@@ -71,7 +76,6 @@ class ReceiverStatus(dict):
 		self.new_device = None
 
 		self[KEYS.ERROR] = None
-		# self[KEYS.NOTIFICATION_FLAGS] = receiver.enable_notifications()
 
 	def __str__(self):
 		count = len(self._receiver)
@@ -80,7 +84,7 @@ class ReceiverStatus(dict):
 				'%d paired devices.' % count)
 	__unicode__ = __str__
 
-	def _changed(self, alert=ALERT.NOTIFICATION, reason=None):
+	def changed(self, alert=ALERT.NOTIFICATION, reason=None):
 		# self.updated = _timestamp()
 		self._changed_callback(self._receiver, alert=alert, reason=reason)
 
@@ -97,25 +101,6 @@ class ReceiverStatus(dict):
 	# 	# get an update of the notification flags
 	# 	# self[KEYS.NOTIFICATION_FLAGS] = _hidpp10.get_notification_flags(r)
 
-	def process_notification(self, n):
-		if n.sub_id == 0x4A:
-			self.lock_open = bool(n.address & 0x01)
-			reason = 'pairing lock is ' + ('open' if self.lock_open else 'closed')
-			_log.info("%s: %s", self._receiver, reason)
-
-			self[KEYS.ERROR] = None
-			if self.lock_open:
-				self.new_device = None
-
-			pair_error = ord(n.data[:1])
-			if pair_error:
-				self[KEYS.ERROR] = error_string = _hidpp10.PAIRING_ERRORS[pair_error]
-				self.new_device = None
-				_log.warn("pairing error %d: %s", pair_error, error_string)
-
-			self._changed(reason=reason)
-			return True
-
 #
 #
 #
@@ -203,7 +188,7 @@ class DeviceStatus(dict):
 		if changed or reason:
 			# update the leds on the device, if any
 			_hidpp10.set_3leds(self._device, level, charging=charging, warning=bool(alert))
-			self._changed(alert=alert, reason=reason, timestamp=timestamp)
+			self.changed(alert=alert, reason=reason, timestamp=timestamp)
 
 	def read_battery(self, timestamp=None):
 		if self._active:
@@ -229,9 +214,9 @@ class DeviceStatus(dict):
 			elif KEYS.BATTERY_STATUS in self:
 				self[KEYS.BATTERY_STATUS] = None
 				self[KEYS.BATTERY_CHARGING] = None
-				self._changed()
+				self.changed()
 
-	def _changed(self, active=None, alert=ALERT.NONE, reason=None, timestamp=None):
+	def changed(self, active=None, alert=ALERT.NONE, reason=None, timestamp=None):
 		assert self._changed_callback
 		d = self._device
 		# assert d  # may be invalid when processing the 'unpaired' notification
@@ -296,7 +281,7 @@ class DeviceStatus(dict):
 	# 			if d.ping():
 	# 				timestamp = self.updated = _timestamp()
 	# 			else:
-	# 				self._changed(active=False, reason='out of range')
+	# 				self.changed(active=False, reason='out of range')
 	#
 	# 		# if still active, make sure we know the battery level
 	# 		if KEYS.BATTERY_LEVEL not in self:
@@ -304,182 +289,6 @@ class DeviceStatus(dict):
 	#
 	# 	elif timestamp - self.updated > _STATUS_TIMEOUT:
 	# 		if d.ping():
-	# 			self._changed(active=True)
+	# 			self.changed(active=True)
 	# 		else:
 	# 			self.updated = _timestamp()
-
-	def process_notification(self, n):
-		# incoming packets with SubId >= 0x80 are supposedly replies from
-		# HID++ 1.0 requests, should never get here
-		assert n.sub_id < 0x80
-
-		# 0x40 to 0x7F appear to be HID++ 1.0 notifications
-		if n.sub_id >= 0x40:
-			return self._process_hidpp10_notification(n)
-
-		# some custom battery events for HID++ 1.0 devices
-		if self._device.protocol < 2.0:
-			# README assuming HID++ 2.0 devices don't use the 0x07/0x0D registers
-			# however, this has not been fully verified yet
-			if n.sub_id in (_R.battery_charge, _R.battery_status) and len(n.data) == 3 and n.data[2:3] == b'\x00':
-				return self._process_hidpp10_custom_notification(n)
-			if n.sub_id == _R.illumination and len(n.data) == 3:
-				return self._process_hidpp10_custom_notification(n)
-		else:
-			# assuming 0x00 to 0x3F are feature (HID++ 2.0) notifications
-			try:
-				feature = self._device.features[n.sub_id]
-			except IndexError:
-				_log.warn("%s: notification from invalid feature index %02X: %s", self._device, n.sub_id, n)
-				return False
-
-			return self._process_feature_notification(n, feature)
-
-	def _process_hidpp10_custom_notification(self, n):
-		if _log.isEnabledFor(_DEBUG):
-			_log.debug("%s (%s) custom battery notification %s", self._device, self._device.protocol, n)
-
-		if n.sub_id in (_R.battery_status, _R.battery_charge):
-			data = '%c%s' % (n.address, n.data)
-			level, status = _hidpp10.parse_battery_status(n.sub_id, data)
-			self.set_battery_info(level, status)
-			return True
-
-		if n.sub_id == _R.illumination:
-			# message layout: 10 ix 17("address")  <??> <?> <??> <light level 1=off..5=max>
-			# TODO anything we can do with this?
-			_log.info("illumination event: %s", n)
-			return True
-
-		_log.warn("%s: unrecognized %s", self._device, n)
-
-	def _process_hidpp10_notification(self, n):
-		# unpair notification
-		if n.sub_id == 0x40:
-			if n.address == 0x02:
-				# device un-paired
-				self.clear()
-				dev = self._device
-				dev.wpid = None
-				dev.status = None
-				self._changed(active=False, alert=ALERT.ALL, reason='unpaired')
-			else:
-				_log.warn("%s: disconnection with unknown type %02X: %s", self._device, n.address, n)
-			return True
-
-		# wireless link notification
-		if n.sub_id == 0x41:
-			protocol_name = ('unifying (eQuad DJ)' if n.address == 0x04
-						else 'eQuad' if n.address == 0x03
-						else None)
-			if protocol_name:
-				if _log.isEnabledFor(_DEBUG):
-					wpid = _strhex(n.data[2:3] + n.data[1:2])
-					assert wpid == self._device.wpid, "%s wpid mismatch, got %s" % (self._device, wpid)
-
-				flags = ord(n.data[:1]) & 0xF0
-				link_encrypyed = bool(flags & 0x20)
-				link_established = not (flags & 0x40)
-				if _log.isEnabledFor(_DEBUG):
-					sw_present = bool(flags & 0x10)
-					has_payload = bool(flags & 0x80)
-					_log.debug("%s: %s connection notification: software=%s, encrypted=%s, link=%s, payload=%s",
-								self._device, protocol_name, sw_present, link_encrypyed, link_established, has_payload)
-				self[KEYS.LINK_ENCRYPTED] = link_encrypyed
-				self._changed(active=link_established)
-			else:
-				_log.warn("%s: connection notification with unknown protocol %02X: %s", self._device.number, n.address, n)
-
-			return True
-
-		if n.sub_id == 0x49:
-			# raw input event? just ignore it
-			# if n.address == 0x01, no idea what it is, but they keep on coming
-			# if n.address == 0x03, it's an actual input event
-			return True
-
-		# power notification
-		if n.sub_id == 0x4B:
-			if n.address == 0x01:
-				if _log.isEnabledFor(_DEBUG):
-					_log.debug("%s: device powered on", self._device)
-				reason = str(self) or 'powered on'
-				self._changed(active=True, alert=ALERT.NOTIFICATION, reason=reason)
-			else:
-				_log.info("%s: unknown %s", self._device, n)
-			return True
-
-		_log.warn("%s: unrecognized %s", self._device, n)
-
-	def _process_feature_notification(self, n, feature):
-		if feature == _hidpp20.FEATURE.BATTERY_STATUS:
-			if n.address == 0x00:
-				discharge = ord(n.data[:1])
-				battery_status = ord(n.data[1:2])
-				self.set_battery_info(discharge, _hidpp20.BATTERY_STATUS[battery_status])
-			else:
-				_log.info("%s: unknown BATTERY %s", self._device, n)
-			return True
-
-		# TODO: what are REPROG_CONTROLS_V{2,3}?
-		if feature == _hidpp20.FEATURE.REPROG_CONTROLS:
-			if n.address == 0x00:
-				_log.info("%s: reprogrammable key: %s", self._device, n)
-			else:
-				_log.info("%s: unknown REPROGRAMMABLE KEYS %s", self._device, n)
-			return True
-
-		if feature == _hidpp20.FEATURE.WIRELESS_DEVICE_STATUS:
-			if n.address == 0x00:
-				if _log.isEnabledFor(_DEBUG):
-					_log.debug("wireless status: %s", n)
-				if n.data[0:3] == b'\x01\x01\x01':
-					self._changed(active=True, alert=ALERT.NOTIFICATION, reason='powered on')
-				else:
-					_log.info("%s: unknown WIRELESS %s", self._device, n)
-			else:
-				_log.info("%s: unknown WIRELESS %s", self._device, n)
-			return True
-
-		if feature == _hidpp20.FEATURE.SOLAR_DASHBOARD:
-			if n.data[5:9] == b'GOOD':
-				charge, lux, adc = _unpack('!BHH', n.data[:5])
-				self[KEYS.BATTERY_LEVEL] = charge
-				# guesstimate the battery voltage, emphasis on 'guess'
-				self[KEYS.BATTERY_STATUS] = '%1.2fV' % (adc * 2.67793237653 / 0x0672)
-				if n.address == 0x00:
-					self[KEYS.LIGHT_LEVEL] = None
-					self[KEYS.BATTERY_CHARGING] = None
-					self._changed(active=True)
-				elif n.address == 0x10:
-					self[KEYS.LIGHT_LEVEL] = lux
-					self[KEYS.BATTERY_CHARGING] = lux > 200
-					self._changed(active=True)
-				elif n.address == 0x20:
-					_log.debug("%s: Light Check button pressed", self._device)
-					self._changed(alert=ALERT.SHOW_WINDOW)
-					# first cancel any reporting
-					# self._device.feature_request(_hidpp20.FEATURE.SOLAR_DASHBOARD)
-					# trigger a new report chain
-					reports_count = 15
-					reports_period = 2  # seconds
-					self._device.feature_request(_hidpp20.FEATURE.SOLAR_DASHBOARD, 0x00, reports_count, reports_period)
-				else:
-					_log.info("%s: unknown SOLAR CHAGE %s", self._device, n)
-			else:
-				_log.warn("%s: SOLAR CHARGE not GOOD? %s", self._device, n)
-			return True
-
-		if feature == _hidpp20.FEATURE.TOUCHMOUSE_RAW_POINTS:
-			if n.address == 0x00:
-				_log.info("%s: TOUCH MOUSE points %s", self._device, n)
-			elif n.address == 0x10:
-				touch = ord(n.data[:1])
-				button_down = bool(touch & 0x02)
-				mouse_lifted = bool(touch & 0x01)
-				_log.info("%s: TOUCH MOUSE status: button_down=%s mouse_lifted=%s", self._device, button_down, mouse_lifted)
-			else:
-				_log.info("%s: unknown TOUCH MOUSE %s", self._device, n)
-			return True
-
-		_log.info("%s: unrecognized %s for feature %s (index %02X)", self._device, n, feature, n.sub_id)
diff --git a/lib/solaar/listener.py b/lib/solaar/listener.py
index 58bf689f..deb620da 100644
--- a/lib/solaar/listener.py
+++ b/lib/solaar/listener.py
@@ -4,14 +4,15 @@
 
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-from logging import getLogger, DEBUG as _DEBUG
+from logging import getLogger, INFO as _INFO
 _log = getLogger(__name__)
 del getLogger
 
 from . import configuration
 from logitech.unifying_receiver import (Receiver,
 										listener as _listener,
-										status as _status)
+										status as _status,
+										notifications as _notifications)
 
 #
 #
@@ -52,10 +53,11 @@ class ReceiverListener(_listener.EventsListener):
 
 		assert status_changed_callback
 		self.status_changed_callback = status_changed_callback
-		receiver.status = _status.ReceiverStatus(receiver, self._status_changed)
+		_status.attach_to(receiver, self._status_changed)
 
 	def has_started(self):
-		_log.info("%s: notifications listener has started (%s)", self.receiver, self.receiver.handle)
+		if _log.isEnabledFor(_INFO):
+			_log.info("%s: notifications listener has started (%s)", self.receiver, self.receiver.handle)
 		notification_flags = self.receiver.enable_notifications()
 		self.receiver.status[_status.KEYS.NOTIFICATION_FLAGS] = notification_flags
 		self.receiver.notify_devices()
@@ -64,7 +66,8 @@ class ReceiverListener(_listener.EventsListener):
 	def has_stopped(self):
 		r, self.receiver = self.receiver, None
 		assert r is not None
-		_log.info("%s: notifications listener has stopped", r)
+		if _log.isEnabledFor(_INFO):
+			_log.info("%s: notifications listener has stopped", r)
 
 		# because udev is not notifying us about device removal,
 		# make sure to clean up in _all_listeners
@@ -117,15 +120,16 @@ class ReceiverListener(_listener.EventsListener):
 
 	def _status_changed(self, device, alert=_status.ALERT.NONE, reason=None):
 		assert device is not None
-		if device.kind is None:
-			_log.info("status_changed %s: %s, %s (%X) %s", device,
-						'present' if bool(device) else 'removed',
-						device.status, alert, reason or '')
-		else:
-			_log.info("status_changed %s: %s %s, %s (%X) %s", device,
-						'paired' if bool(device) else 'unpaired',
-						'online' if device.online else 'offline',
-						device.status, alert, reason or '')
+		if _log.isEnabledFor(_INFO):
+			if device.kind is None:
+				_log.info("status_changed %s: %s, %s (%X) %s", device,
+							'present' if bool(device) else 'removed',
+							device.status, alert, reason or '')
+			else:
+				_log.info("status_changed %s: %s %s, %s (%X) %s", device,
+							'paired' if bool(device) else 'unpaired',
+							'online' if device.online else 'offline',
+							device.status, alert, reason or '')
 
 		if device.kind is None:
 			assert device == self.receiver
@@ -152,8 +156,7 @@ class ReceiverListener(_listener.EventsListener):
 		# _log.debug("%s: handling %s", self.receiver, n)
 		if n.devnumber == 0xFF:
 			# a receiver notification
-			if self.receiver.status is not None:
-				self.receiver.status.process_notification(n)
+			_notifications.process(self.receiver, n)
 			return
 
 		# a device notification
@@ -169,21 +172,23 @@ class ReceiverListener(_listener.EventsListener):
 			return
 
 		if not already_known:
-			_log.info("%s triggered new device %s (%s)", n, dev, dev.kind)
+			if _log.isEnabledFor(_INFO):
+				_log.info("%s triggered new device %s (%s)", n, dev, dev.kind)
 			# If there are saved configs, bring the device's settings up-to-date.
 			# They will be applied when the device is marked as online.
 			configuration.attach_to(dev)
-			dev.status = _status.DeviceStatus(dev, self._status_changed)
+			_status.attach_to(dev, self._status_changed)
 			# the receiver changed status as well
 			self._status_changed(self.receiver)
 
 		assert dev
 		assert dev.status is not None
-		dev.status.process_notification(n)
+		_notifications.process(dev, n)
 		if self.receiver.status.lock_open and not already_known:
 			# this should be the first notification after a device was paired
 			assert n.sub_id == 0x41 and n.address == 0x04
-			_log.info("%s: pairing detected new device", self.receiver)
+			if _log.isEnabledFor(_INFO):
+				_log.info("%s: pairing detected new device", self.receiver)
 			self.receiver.status.new_device = dev
 		else:
 			if dev.online is None:
@@ -210,15 +215,16 @@ def _start(device_info):
 		rl.start()
 		_all_listeners[device_info.path] = rl
 		return rl
-	else:
-		_log.warn("failed to open %s", device_info)
+
+	_log.warn("failed to open %s", device_info)
 
 
 def start_all():
 	# just in case this it called twice in a row...
 	stop_all()
 
-	_log.info("starting receiver listening threads")
+	if _log.isEnabledFor(_INFO):
+		_log.info("starting receiver listening threads")
 	for device_info in _base.receivers():
 		_process_receiver_event('add', device_info)
 
@@ -228,7 +234,8 @@ def stop_all():
 	_all_listeners.clear()
 
 	if listeners:
-		_log.info("stopping receiver listening threads %s", listeners)
+		if _log.isEnabledFor(_INFO):
+			_log.info("stopping receiver listening threads %s", listeners)
 
 		for l in listeners:
 			l.stop()
@@ -266,7 +273,8 @@ def _process_receiver_event(action, device_info):
 	assert device_info is not None
 	assert _error_callback
 
-	_log.info("receiver event %s %s", action, device_info)
+	if _log.isEnabledFor(_INFO):
+		_log.info("receiver event %s %s", action, device_info)
 
 	# whatever the action, stop any previous receivers at this path
 	l = _all_listeners.pop(device_info.path, None)