feat(io): Integrate com.revolutionpi.ios1 bus to daemon

Signed-off-by: Sven Sager <s.sager@kunbus.com>

.gitignore

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

.gitlab-ci.yml

@@ -1,40 +0,0 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-default:
-  tags:
-    - self-hosted
-    - host-arm64
-    - high-perf
-
-include:
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "base.yml"
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "check-commit/lint-commit.yml"
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "reuse-lint.yml"
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "package-devel.yml"
-  - local: debian/gitlab-ci.yml
-    rules:
-      - exists:
-          - debian/gitlab-ci.yml
-
-run_tests:
-  stage: test
-  image: python:3.11-bookworm
-  script:
-    - apt-get update
-    - apt-get -y install dbus libgirepository1.0-dev
-    - dbus-uuidgen --ensure=/etc/machine-id
-    - pip install -r requirements.txt
-    - PYTHONPATH=src dbus-run-session -- pytest -v --junitxml=report.xml --cov=src --cov-report term --cov-report xml:coverage.xml
-  coverage: '/(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/'
-  artifacts:
-    reports:
-      junit: ${CI_PROJECT_DIR}/report.xml
-      coverage_report:
-        coverage_format: cobertura
-        path: coverage.xml

MANIFEST.in

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 recursive-include .reuse *
 recursive-include data *
 recursive-include LICENSES *

Makefile

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 SHELL        := bash
 MAKEFLAGS     = --no-print-directory --no-builtin-rules
 .DEFAULT_GOAL = all

README.md

@@ -1,9 +1,3 @@
-<!--
-SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-
-SPDX-License-Identifier: GPL-2.0-or-later
--->
-
 # Middleware for Revolution Pi
 
 This middleware will support D-Bus as IPC interface.

data/dbus-policy/com.revolutionpi.ios1.conf

@@ -0,0 +1,22 @@
+<!-- /usr/share/dbus-1/system.d/com.revolutionpi.ios1.conf -->
+<busconfig>
+    <!-- Allow full access to root as the bus owner -->
+    <policy user="root">
+        <allow own="com.revolutionpi.ios1"/>
+        <allow send_destination="com.revolutionpi.ios1"/>
+        <allow receive_sender="com.revolutionpi.ios1"/>
+    </policy>
+
+    <!-- System group picontrol -->
+    <policy group="picontrol">
+        <allow send_destination="com.revolutionpi.ios1"
+               send_interface="org.freedesktop.DBus.Introspectable"/>
+        <allow send_destination="com.revolutionpi.ios1"
+               send_interface="com.revolutionpi.middleware1.PiControl"/>
+    </policy>
+
+    <!-- Standard-Policy -->
+    <policy context="default">
+        <deny send_destination="com.revolutionpi.ios1"/>
+    </policy>
+</busconfig>

data/examples/io_controller.py

@@ -0,0 +1,46 @@
+from time import time
+
+from gi.repository import GLib
+from pydbus import SystemBus
+
+detected_signal = False
+timestamp = time()
+
+bus = SystemBus()
+bus_revpi = bus.get("com.revolutionpi.ios1", "/com/revolutionpi/ios1")
+interface = bus_revpi["com.revolutionpi.ios1.IoManager"]
+
+io_o_1_path = interface.Get("O_1")
+io_revpiled_path = interface.Get("RevPiLED")
+
+io_RevPiLED = bus.get("com.revolutionpi.ios1", io_revpiled_path)
+io_O_1 = bus.get("com.revolutionpi.ios1", io_o_1_path)
+
+
+def signal_handler(io_name, io_value):
+    global timestamp
+
+    print(f"Signal received: {io_name} = {io_value}")
+    if io_name == "O_1":
+        timestamp = time()
+        io_RevPiLED.Set("com.revolutionpi.ios1.OutInt", "value", GLib.Variant("i", int(io_value)))
+
+    elif io_name == "I_1":
+        io_RevPiLED.Set("com.revolutionpi.ios1.OutInt", "value", GLib.Variant("i", int(io_value)))
+        io_O_1.Set("com.revolutionpi.ios1.OutBool", "value", GLib.Variant("b", not io_value))
+        print(time() - timestamp)
+
+
+# Start event detection
+interface.ActivateIoEvents()
+
+interface.onIoChanged = signal_handler
+
+try:
+    loop = GLib.MainLoop()
+    loop.run()
+except KeyboardInterrupt:
+    pass
+
+# Stop event detection
+interface.DeactivateIoEvents()

examples/revpi-config

@@ -1,100 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-from argparse import ArgumentParser, SUPPRESS
-from typing import NamedTuple
-
-from pydbus import SessionBus, SystemBus
-
-FeatureMapping = NamedTuple("FeatureMapping", [("dbus_interface", str), ("name", str)])
-
-REVPI_DBUS_NAME = "com.revolutionpi.middleware1"
-REVPI_DBUS_BASE_PATH = "/com/revolutionpi/middleware1"
-IFACE_SOFTWARE_SERVICES = "com.revolutionpi.middleware1.SoftwareServices"
-IFACE_REVPI_CONFIG = "com.revolutionpi.middleware1.RevpiConfig"
-
-REVPI_FEATURE_MAPPINGS = {
-    "gui": FeatureMapping(IFACE_REVPI_CONFIG, "gui"),
-    "revpi-con-can": FeatureMapping(IFACE_REVPI_CONFIG, "revpi-con-can"),
-    "dphys-swapfile": FeatureMapping(IFACE_REVPI_CONFIG, "swapfile"),
-    "pimodbus-master": FeatureMapping(IFACE_SOFTWARE_SERVICES, "pimodbus-master"),
-    "pimodbus-slave": FeatureMapping(IFACE_SOFTWARE_SERVICES, "pimodbus-slave"),
-    "systemd-timesyncd": FeatureMapping(IFACE_SOFTWARE_SERVICES, "ntp"),
-    "ssh": FeatureMapping(IFACE_SOFTWARE_SERVICES, "ssh"),
-    "nodered": FeatureMapping(IFACE_SOFTWARE_SERVICES, "nodered"),
-    "noderedrevpinodes-server": FeatureMapping(IFACE_SOFTWARE_SERVICES, "noderedrevpinodes-server"),
-    "revpipyload": FeatureMapping(IFACE_SOFTWARE_SERVICES, "revpipyload"),
-    "bluetooth": FeatureMapping(IFACE_REVPI_CONFIG, "bluetooth"),
-    "ieee80211": FeatureMapping(IFACE_REVPI_CONFIG, "wlan"),
-    "avahi": FeatureMapping(IFACE_SOFTWARE_SERVICES, "avahi"),
-    "external-antenna": FeatureMapping(IFACE_REVPI_CONFIG, "external-antenna"),
-}
-
-# Generate command arguments
-parser = ArgumentParser(
-    prog="revpi-config",
-    description="Configuration tool for Revolution Pi.",
-)
-parser.add_argument(
-    "--use-session-bus",
-    dest="use_session_bus",
-    action="store_true",
-    default=False,
-    help=SUPPRESS,
-)
-parser.add_argument(
-    "action",
-    choices=["enable", "disable", "status", "available", "availstat"],
-    help="Action to be executed: enable, disable, status or available.",
-)
-parser.add_argument(
-    "feature",
-    nargs="*",
-    help="Name of the feature to configure.",
-)
-args = parser.parse_args()
-
-# Init dbus
-bus = SessionBus() if args.use_session_bus else SystemBus()
-revpi_middleware = bus.get(REVPI_DBUS_NAME, REVPI_DBUS_BASE_PATH)
-
-lst_results = []
-for feature in args.feature:
-
-    # Get the mappings
-    feature_mapping = REVPI_FEATURE_MAPPINGS.get(feature, None)
-
-    if feature_mapping is None:
-        if args.action in ("enable", "disable"):
-            # Missing feature with action enable/disable will return 5
-            lst_results.append(5)
-        elif args.action == "availstat":
-            # Missing feature with action availstat will return 2
-            lst_results.append(2)
-        else:
-            # Missing feature with action status/available will return 0
-            lst_results.append(0)
-
-        continue
-
-    dbus_interface = revpi_middleware[feature_mapping.dbus_interface]
-
-    if args.action == "enable":
-        dbus_interface.Enable(feature_mapping.name)
-        lst_results.append(0)
-
-    elif args.action == "disable":
-        dbus_interface.Disable(feature_mapping.name)
-        lst_results.append(0)
-
-    elif args.action in ("status", "availstat"):
-        status = dbus_interface.GetStatus(feature_mapping.name)
-        lst_results.append(int(status))
-
-    elif args.action == "available":
-        availability = dbus_interface.GetAvailability(feature_mapping.name)
-        lst_results.append(int(availability))
-
-if lst_results:
-    print(" ".join(map(str, lst_results)))

pyproject.toml

@@ -1,6 +1,2 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 [tool.black]
 line-length = 100

requirements.txt

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 # Build dependencies
 pip-licenses
 Pyinstaller

src/revpi_middleware/daemon.py

@@ -9,6 +9,7 @@ from time import perf_counter
 
 from . import proginit as pi
 from .dbus_middleware1.bus_provider import BusProvider
+from .ios1.bus_provider_io import BusProviderIo
 
 log = getLogger(__name__)
 
@@ -26,6 +27,7 @@ class MiddlewareDaemon:
         self._running = True
 
         self.bus_provider = None
+        self.io_bus_provider = None
 
         self._configure()
         log.debug("leave MiddlewareDaemon.__init__")
@@ -39,11 +41,16 @@ class MiddlewareDaemon:
 
     def dbus_start(self):
         log.debug("enter MiddlewareDaemon.dbus_start")
-        if self.bus_provider and self.bus_provider.is_alive():
-            return
 
-        self.bus_provider = BusProvider(use_system_bus=not pi.pargs.use_session_bus)
+        dbus_middleware_running = self.bus_provider and self.bus_provider.is_alive()
-        self.bus_provider.start()
+        if not dbus_middleware_running:
+            self.bus_provider = BusProvider(use_system_bus=not pi.pargs.use_session_bus)
+            self.bus_provider.start()
+
+        dbus_io_middleware_running = self.io_bus_provider and self.io_bus_provider.is_alive()
+        if not dbus_io_middleware_running:
+            self.io_bus_provider = BusProviderIo(use_system_bus=not pi.pargs.use_session_bus)
+            self.io_bus_provider.start()
 
         log.debug("leave MiddlewareDaemon.dbus_start")
 
@@ -56,6 +63,12 @@ class MiddlewareDaemon:
             if self.bus_provider.is_alive():
                 log.warning("dbus provider thread is still alive")
 
+        if self.io_bus_provider:
+            self.io_bus_provider.stop()
+            self.io_bus_provider.join(timeout=10.0)
+            if self.io_bus_provider.is_alive():
+                log.warning("dbus io provider thread is still alive")
+
         log.debug("leave MiddlewareDaemon.dbus_stop")
 
     def reload_config(self) -> None:

src/revpi_middleware/dbus_middleware1/bus_provider.py

@@ -10,7 +10,7 @@ from pydbus import SessionBus, SystemBus
 
 from . import REVPI_DBUS_NAME
 from .process_image import InterfacePiControl
-from .system_config import InterfaceRevpiConfig, InterfaceSoftwareServices, InterfaceWlan
+from .system_config import InterfaceRevpiConfig
 
 log = getLogger(__name__)
 
@@ -41,10 +41,8 @@ class BusProvider(Thread):
         #   ("Subdir2", Example()),
         #   ("Subdir2/Whatever", Example())
         lst_interfaces = [
-            InterfacePiControl(self._bus, self.picontrol_device, self.config_rsc),
+            InterfacePiControl(self.picontrol_device, self.config_rsc),
-            InterfaceRevpiConfig(self._bus),
+            InterfaceRevpiConfig(),
-            InterfaceSoftwareServices(self._bus),
-            InterfaceWlan(self._bus),
         ]
 
         try:

src/revpi_middleware/dbus_middleware1/dbus_helper.py

@@ -2,10 +2,8 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Helper for dbus."""
-from logging import getLogger
-from typing import Union
 
-from pydbus import SessionBus, SystemBus
+from logging import getLogger
 
 log = getLogger(__name__)
 
@@ -15,9 +13,6 @@ REVPI_DBUS_BASE_PATH = "/com/revolutionpi/middleware1"
 
 class DbusInterface:
 
-    def __init__(self, bus: Union[SessionBus, SystemBus]):
-        self.bus = bus
-
     def cleanup(self):
         """
         Represents a method responsible for performing cleanup operations. This method is executed to properly

src/revpi_middleware/dbus_middleware1/process_image/interface_picontrol.py

@@ -26,9 +26,7 @@ class InterfacePiControl(DbusInterface):
 
     NotifyDriverReset = signal()
 
-    def __init__(self, bus, picontrol_device: str, config_rsc: str):
+    def __init__(self, picontrol_device: str, config_rsc: str):
-        super().__init__(bus)
-
         self.picontrol_device = picontrol_device
         self.config_rsc = config_rsc
 

src/revpi_middleware/dbus_middleware1/system_config/__init__.py

@@ -3,5 +3,3 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus interfaces for system configuration."""
 from .interface_config import InterfaceRevpiConfig
-from .interface_services import InterfaceSoftwareServices
-from .interface_wlan import InterfaceWlan

src/revpi_middleware/dbus_middleware1/system_config/interface_config.py

@@ -5,15 +5,16 @@
 from collections import namedtuple
 from logging import getLogger
 
-from pydbus.generic import signal
-
 from .revpi_config import (
     ConfigActions,
+    configure_avahi_daemon,
     configure_bluetooth,
     configure_con_can,
     configure_dphys_swapfile,
     configure_external_antenna,
     configure_gui,
+    configure_wlan,
+    simple_systemd,
 )
 from ..dbus_helper import DbusInterface
 
@@ -41,32 +42,19 @@ class InterfaceRevpiConfig(DbusInterface):
                 <arg name="available" type="b" direction="out"/>
             </method>
             <property name="available_features" type="as" access="read"/>
-            <signal name="StatusChanged">
-                <arg name="feature" type="s"/>
-                <arg name="status" type="b"/>
-            </signal>
-            <signal name="AvailabilityChanged">
-                <arg name="feature" type="s"/>
-                <arg name="available" type="b"/>
-            </signal>
         </interface>
     </node>
     """
 
-    AvailabilityChanged = signal()
-    StatusChanged = signal()
-
     def Disable(self, feature: str) -> None:
         """Disable the feature."""
         feature_function = get_feature(feature)
         feature_function.function(ConfigActions.DISABLE, *feature_function.args)
-        self.StatusChanged(feature, False)
 
     def Enable(self, feature: str) -> None:
         """Enable the feature."""
         feature_function = get_feature(feature)
         feature_function.function(ConfigActions.ENABLE, *feature_function.args)
-        self.StatusChanged(feature, True)
 
     def GetStatus(self, feature: str) -> bool:
         """Get feature status."""
@@ -95,7 +83,18 @@ def get_feature(feature: str) -> FeatureFunction:
 AVAILABLE_FEATURES = {
     "gui": FeatureFunction(configure_gui, []),
     "revpi-con-can": FeatureFunction(configure_con_can, []),
-    "swapfile": FeatureFunction(configure_dphys_swapfile, []),
+    "dphys-swapfile": FeatureFunction(configure_dphys_swapfile, []),
+    "pimodbus-master": FeatureFunction(simple_systemd, ["pimodbus-master.service"]),
+    "pimodbus-slave": FeatureFunction(simple_systemd, ["pimodbus-slave.service"]),
+    "systemd-timesyncd": FeatureFunction(simple_systemd, ["systemd-timesyncd.service"]),
+    "ssh": FeatureFunction(simple_systemd, ["ssh.service"]),
+    "nodered": FeatureFunction(simple_systemd, ["nodered.service"]),
+    "noderedrevpinodes-server": FeatureFunction(
+        simple_systemd, ["noderedrevpinodes-server.service"]
+    ),
+    "revpipyload": FeatureFunction(simple_systemd, ["revpipyload.service"]),
     "bluetooth": FeatureFunction(configure_bluetooth, []),
+    "wlan": FeatureFunction(configure_wlan, []),
+    "avahi": FeatureFunction(configure_avahi_daemon, []),
     "external-antenna": FeatureFunction(configure_external_antenna, []),
 }

src/revpi_middleware/dbus_middleware1/system_config/interface_services.py

@@ -1,205 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""D-Bus interfaces for software services."""
-from logging import getLogger
-from typing import List
-
-from pydbus.generic import signal
-
-from ..dbus_helper import DbusInterface
-from ..systemd_helper import simple_systemd, ServiceActions
-
-log = getLogger(__name__)
-
-
-class InterfaceSoftwareServices(DbusInterface):
-    """
-    <node>
-        <interface name="com.revolutionpi.middleware1.SoftwareServices">
-            <method name="Disable">
-                <arg name="feature" type="s" direction="in"/>
-            </method>
-            <method name="Enable">
-                <arg name="feature" type="s" direction="in"/>
-            </method>
-            <method name="GetStatus">
-                <arg name="feature" type="s" direction="in"/>
-                <arg name="status" type="b" direction="out"/>
-            </method>
-            <method name="GetAvailability">
-                <arg name="feature" type="s" direction="in"/>
-                <arg name="available" type="b" direction="out"/>
-            </method>
-            <property name="available_features" type="as" access="read"/>
-            <signal name="StatusChanged">
-                <arg name="feature" type="s"/>
-                <arg name="status" type="b"/>
-            </signal>
-            <signal name="AvailabilityChanged">
-                <arg name="feature" type="s"/>
-                <arg name="available" type="b"/>
-            </signal>
-        </interface>
-    </node>
-    """
-
-    AvailabilityChanged = signal()
-    StatusChanged = signal()
-
-    def __init__(self, bus):
-        super().__init__(bus)
-
-        self.mrk_available = {}
-        self.mrk_status = {}
-
-        self.services = {
-            "pimodbus-master": ["pimodbus-master.service"],
-            "pimodbus-slave": ["pimodbus-slave.service"],
-            "ntp": ["systemd-timesyncd.service"],
-            "ssh": ["ssh.service"],
-            "nodered": ["nodered.service"],
-            "noderedrevpinodes-server": ["noderedrevpinodes-server.service"],
-            "revpipyload": ["revpipyload.service"],
-            "avahi": ["avahi-daemon.service", "avahi-daemon.socket"],
-        }
-
-        # Create a systemd manager interface object
-        systemd = self.bus.get(
-            "org.freedesktop.systemd1",
-            "/org/freedesktop/systemd1",
-        )
-        systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
-
-        # Load all unit paths and subscribe to properties changed signal
-        self.object_paths = {}
-        for feature in self.services:
-
-            # Get the status and availability of the feature
-            self.mrk_available[feature] = self.GetAvailability(feature)
-            self.mrk_status[feature] = self.GetStatus(feature)
-
-            # Subscribe to properties changed signal for each unit
-            for unit_name in self.services[feature]:
-                unit_path = systemd_manager.LoadUnit(unit_name)
-                self.object_paths[unit_path] = feature
-
-                self.bus.subscribe(
-                    iface="org.freedesktop.DBus.Properties",
-                    signal="PropertiesChanged",
-                    object=unit_path,
-                    signal_fired=self._callback_properties_changed,
-                )
-
-        # Subscribe to the reloading signal to update the availability of the feature
-        self.bus.subscribe(
-            iface="org.freedesktop.systemd1.Manager",
-            signal="Reloading",
-            object="/org/freedesktop/systemd1",
-            signal_fired=self._callback_reloading_signal,
-        )
-
-    def _callback_reloading_signal(self, sender, object_path, interface, signal, parameters):
-        """
-        Handles the signal emitted for reloading and checks for changes in availability
-        and status for a set of services. If changes are identified, corresponding
-        update methods are triggered to reflect the new states.
-
-        Args:
-            sender: The entity sending the signal.
-            object_path: Path to the object emitting the signal.
-            interface: Interface through which the signal is sent.
-            signal: The signal being received.
-            parameters: A list of parameters associated with the signal.
-
-        Raises:
-            None
-        """
-        if parameters[0]:
-            return
-
-        for feature in self.services:
-            availability = self.GetAvailability(feature)
-            if self.mrk_available[feature] != availability:
-                self.mrk_available[feature] = availability
-                self.AvailabilityChanged(feature, availability)
-
-            status = self.GetStatus(feature)
-            if self.mrk_status[feature] != status:
-                self.mrk_status[feature] = status
-                self.StatusChanged(feature, status)
-
-    def _callback_properties_changed(self, sender, object_path, interface, signal, parameters):
-        """
-        Handles the 'PropertiesChanged' signal callback by updating internal status tracking for given
-        features and invoking status change notifications if necessary.
-
-        Args:
-            sender (Any): Information about the signal sender.
-            object_path (str): The path of the object emitting the signal.
-            interface (str): The interface where the signal was emitted.
-            signal (str): The name of the emitted signal.
-            parameters (tuple): Signal parameters containing interface name, changed properties, and
-                invalidated properties.
-
-        Raises:
-            TypeError: If the 'parameters' argument does not unpack to three expected values.
-        """
-        interface, changed_properties, invalidated_properties = parameters
-        if "ActiveState" not in changed_properties:
-            return
-
-        feature = self.object_paths[object_path]
-        status = self.GetStatus(feature)
-        if self.mrk_status[feature] != status:
-            self.mrk_status[feature] = status
-            self.StatusChanged(feature, status)
-
-    def _get_unit_names(self, feature: str) -> List[str]:
-        if feature not in self.services:
-            raise ValueError(f"feature {feature} does not exist")
-        return self.services[feature]
-
-    def Disable(self, feature: str) -> None:
-        """Disable the feature."""
-        action = ServiceActions.DISABLE
-        unit_names = self._get_unit_names(feature)
-
-        for unit_name in unit_names:
-            simple_systemd(action, unit_name)
-
-    def Enable(self, feature: str) -> None:
-        """Enable the feature."""
-        action = ServiceActions.ENABLE
-        unit_names = self._get_unit_names(feature)
-
-        for unit_name in unit_names:
-            simple_systemd(action, unit_name)
-
-    def GetStatus(self, feature: str) -> bool:
-        """Get feature status."""
-        unit_names = self._get_unit_names(feature)
-        rc_status = True
-
-        for unit_name in unit_names:
-            if not simple_systemd(ServiceActions.STATUS, unit_name):
-                rc_status = False
-                break
-
-        return rc_status
-
-    def GetAvailability(self, feature: str) -> bool:
-        """Get feature availability on the RevPi."""
-        unit_names = self._get_unit_names(feature)
-        rc_available = True
-
-        for unit_name in unit_names:
-            if not simple_systemd(ServiceActions.AVAILABLE, unit_name):
-                rc_available = False
-                break
-
-        return rc_available
-
-    @property
-    def available_features(self) -> list[str]:
-        return list(self.services.keys())

src/revpi_middleware/dbus_middleware1/system_config/interface_wlan.py

@@ -1,90 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""D-Bus interfaces for wlan configuration."""
-from logging import getLogger
-from threading import Event, Thread
-
-from pydbus.generic import signal
-
-from .revpi_config import configure_wlan, ConfigActions
-from ..dbus_helper import DbusInterface
-
-log = getLogger(__name__)
-
-
-class InterfaceWlan(DbusInterface):
-    """
-    <node>
-        <interface name="com.revolutionpi.middleware1.WlanConfiguration">
-            <method name="Enable">
-                <annotation name="org.freedesktop.DBus.Method.NoReply" value="true"/>
-            </method>
-            <method name="Disable">
-                <annotation name="org.freedesktop.DBus.Method.NoReply" value="true"/>
-            </method>
-            <property name="available" type="b" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="status" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="true"/>
-            </property>
-        </interface>
-    </node>
-    """
-
-    PropertiesChanged = signal()
-
-    def __init__(self, bus):
-        super().__init__(bus)
-        self._status = ""
-
-        # NetworkManager-Objekt abrufen
-        self.bus_nm = self.bus.get(
-            "org.freedesktop.NetworkManager",
-            "/org/freedesktop/NetworkManager",
-        )
-
-        # Prepare status value and thread
-        self.evt_stop_threading = Event()
-        self._update_status(suppress_signal=True)
-        self.th_run_status_update = Thread(
-            target=self._run_status_update,
-            daemon=True,
-        ).start()
-
-    def _run_status_update(self, *args, **kwargs):
-        while not self.evt_stop_threading.wait(1.0):
-            self._update_status()
-
-    def _update_status(self, suppress_signal=False) -> None:
-        str_status = "enabled" if configure_wlan(ConfigActions.STATUS) else "disabled"
-        if self._status != str_status:
-            self._status = str_status
-
-            if not suppress_signal:
-                self.PropertiesChanged(
-                    "com.revolutionpi.middleware1.WlanConfiguration",
-                    {"status": str_status},
-                    [],
-                )
-
-    def cleanup(self):
-        self.evt_stop_threading.set()
-
-    def Disable(self) -> None:
-        """Disable integrated WLAN hardware."""
-        configure_wlan(ConfigActions.DISABLE)
-
-    def Enable(self) -> None:
-        """Enable integrated WLAN hardware."""
-        configure_wlan(ConfigActions.ENABLE)
-
-    @property
-    def available(self) -> bool:
-        """Check if WLAN hardware is available."""
-        return configure_wlan(ConfigActions.AVAILABLE)
-
-    @property
-    def status(self) -> str:
-        return self._status

src/revpi_middleware/dbus_middleware1/system_config/revpi_config.py

@@ -10,13 +10,12 @@ from glob import glob
 from logging import getLogger
 from os import X_OK, access
 from os.path import exists, join
-from threading import Lock
+from threading import Thread
 from typing import List, Optional
 
 from pydbus import SystemBus
 
 from ..dbus_helper import grep
-from ..systemd_helper import simple_systemd, ServiceActions
 
 log = getLogger(__name__)
 
@@ -25,8 +24,6 @@ ConfigVariable = namedtuple("ConfigVariable", ["name", "value", "line_index"])
 LINUX_BT_CLASS_PATH = "/sys/class/bluetooth"
 LINUX_WLAN_CLASS_PATH = "/sys/class/ieee80211"
 CONFIG_TXT_LOCATIONS = ("/boot/firmware/config.txt", "/boot/config.txt")
-CMDLINE_TXT_LOCK = Lock()
-CONFIG_TXT_LOCK = Lock()
 
 
 class ComputeModuleTypes(IntEnum):
@@ -45,7 +42,6 @@ class ComputeModuleTypes(IntEnum):
         CM4S (int): Represents a Compute Module 4S.
         CM5 (int): Represents a Compute Module 5.
     """
-
     UNKNOWN = 0
     CM1 = 6
     CM3 = 10
@@ -62,7 +58,6 @@ class ConfigActions(Enum):
     actions. It can be used to ensure consistency when working with or defining
     such actions in a system.
     """
-
     ENABLE = "enable"
     DISABLE = "disable"
     STATUS = "status"
@@ -222,87 +217,6 @@ class RevPiConfig:
         return bool(self._wlan_class_path)
 
 
-class CmdLineTxt:
-    """
-    Represents operations on a `cmdline.txt` configuration file.
-
-    This class provides functionality to read, modify, and save the
-    `cmdline.txt` file commonly used for system configurations. It allows
-    setting key-value pairs, removing keys, and manages file locking to ensure
-    thread-safe modifications.
-    """
-
-    # Value is optional, "?:=" non-capturing the "="
-    re_name_value = re.compile(r"(?P<key>[^\s=]+)(?:=(?P<value>\S+))?")
-
-    def __init__(self):
-        self._cmdline_txt_path = ""
-        for path in CONFIG_TXT_LOCATIONS:
-            if exists(path):
-                self._cmdline_txt_path = path
-                break
-
-        if not self._cmdline_txt_path:
-            raise FileNotFoundError("no config.txt found")
-
-    def _get_cmdline_dict(self) -> dict:
-        with CMDLINE_TXT_LOCK:
-            with open(self._cmdline_txt_path, "r") as file:
-                cmdline = file.read()
-
-        return {
-            match.group("key"): match.group("value")
-            for match in self.re_name_value.finditer(cmdline)
-        }
-
-    def _write_cmdline_dict(self, cmdline_dict: dict) -> None:
-        with CMDLINE_TXT_LOCK:
-
-            tmp_path = f"{self._cmdline_txt_path}.tmp"
-            with open(tmp_path, "w") as file:
-                str_cmdline = ""
-                for key, value in cmdline_dict.items():
-                    if value is None:
-                        str_cmdline += f"{key} "
-                    else:
-                        str_cmdline += f"{key}={value} "
-
-                str_cmdline = str_cmdline.strip()
-                file.write(str_cmdline + "\n")
-
-            shutil.move(tmp_path, self._cmdline_txt_path)
-
-    def remove_key(self, key: str) -> None:
-        """
-        Removes a specified key from the config.txt file.
-
-        Parameters:
-        key: str
-            The key to be removed from the config.txt file.
-        """
-        dc_cmdline = self._get_cmdline_dict()
-        if key in dc_cmdline:
-            del dc_cmdline[key]
-            self._write_cmdline_dict(dc_cmdline)
-
-    def set_key_value(self, key: str, value: Optional[str] = None) -> None:
-        """
-        Sets a given key-value pair in the config.txt file. If the key does not
-        exist or the value differs from the current one, the pair is updated.
-        If the value is None, just the key is set without a value.
-
-        Parameters:
-        key: str
-            The key to set in the config.txt file.
-        value: Optional[str], default = None
-            The value to associate with the key, defaulting to None.
-        """
-        dc_cmdline = self._get_cmdline_dict()
-        if key not in dc_cmdline or dc_cmdline.get(key, value) != value:
-            dc_cmdline[key] = value
-            self._write_cmdline_dict(dc_cmdline)
-
-
 class ConfigTxt:
     """
     Configuration file handler for managing 'config.txt'.
@@ -312,8 +226,12 @@ class ConfigTxt:
     to manipulate specific parameters within the configuration and supports
     managing dtoverlay and dtparam entries. The primary aim of this class
     is to abstract file operations and make modifications user-friendly.
-    """
 
+    Attributes:
+        _config_txt_path (str): The path to the configuration file `config.txt`.
+        _config_txt_lines (list[str]): Contains all lines of the configuration
+            file as a list of strings, where each string represents a line.
+    """
     re_name_value = re.compile(r"^\s*(?!#)(?P<name>[^=\s].+?)\s*=\s*(?P<value>\S+)\s*$")
 
     def __init__(self):
@@ -397,9 +315,8 @@ class ConfigTxt:
         Returns:
             None
         """
-        with CONFIG_TXT_LOCK:
+        with open(self._config_txt_path, "r") as f:
-            with open(self._config_txt_path, "r") as f:
+            self._config_txt_lines = f.readlines()
-                self._config_txt_lines = f.readlines()
 
     def save_config(self):
         """
@@ -413,11 +330,10 @@ class ConfigTxt:
         if not self._config_txt_lines:
             return
 
-        with CONFIG_TXT_LOCK:
+        tmp_path = f"{self._config_txt_path}.tmp"
-            tmp_path = f"{self._config_txt_path}.tmp"
+        with open(tmp_path, "w") as f:
-            with open(tmp_path, "w") as f:
+            f.writelines(self._config_txt_lines)
-                f.writelines(self._config_txt_lines)
+        shutil.move(tmp_path, self._config_txt_path)
-            shutil.move(tmp_path, self._config_txt_path)
 
         self._config_txt_lines.clear()
 
@@ -516,6 +432,18 @@ class ConfigTxt:
         return self._config_txt_path
 
 
+def configure_avahi_daemon(action: ConfigActions):
+    return_value = simple_systemd(action, "avahi-daemon.service")
+
+    # Post actions for avahi-daemon
+    if action in (ConfigActions.ENABLE, ConfigActions.DISABLE):
+        # Apply the enable/disable action to the avahi socket AFTER the service
+        # unit, because a connected socket could interrupt stop
+        simple_systemd(action, "avahi-daemon.socket")
+
+    return return_value
+
+
 def configure_bluetooth(action: ConfigActions):
     hci_device = join(LINUX_BT_CLASS_PATH, "hci0")
     bt_rfkill_index = get_rfkill_index(hci_device)
@@ -581,17 +509,7 @@ def configure_con_can(action: ConfigActions):
 
 
 def configure_dphys_swapfile(action: ConfigActions):
-    # Translate config action to systemd action
+    return_value = simple_systemd(action, "dphys-swapfile.service")
-    if action is ConfigActions.ENABLE:
-        systemd_action = ServiceActions.ENABLE
-    elif action is ConfigActions.DISABLE:
-        systemd_action = ServiceActions.DISABLE
-    elif action is ConfigActions.STATUS:
-        systemd_action = ServiceActions.STATUS
-    else:
-        systemd_action = ServiceActions.AVAILABLE
-
-    return_value = simple_systemd(systemd_action, "dphys-swapfile.service")
 
     # Post actions for dphys-swapfile
     if action is ConfigActions.DISABLE:
@@ -716,6 +634,98 @@ def get_rfkill_index(device_class_path: str) -> Optional[int]:
     return None
 
 
+def simple_systemd(action: ConfigActions, unit: str):
+    """
+    Performs specified actions on systemd units.
+
+    This function allows interaction with systemd units for various operations
+    such as enabling, disabling, checking the status, and verifying availability.
+    It communicates with the systemd manager via the SystemBus and handles units
+    based on the action specified.
+
+    Parameters:
+        action (ConfigActions): Specifies the action to be performed on the
+                                systemd unit. Supported actions include ENABLE,
+                                DISABLE, STATUS, and AVAILABLE.
+        unit (str): The name of the systemd unit on which the action is to be
+                    performed.
+
+    Returns:
+        bool: For STATUS and AVAILABLE actions, returns True if the corresponding
+              criteria are met (e.g., enabled and active for STATUS, or not found
+              for AVAILABLE). Otherwise, returns False.
+
+    Raises:
+        ValueError: If the specified action is not supported.
+    """
+    bus = SystemBus()
+    systemd = bus.get(
+        "org.freedesktop.systemd1",
+        "/org/freedesktop/systemd1",
+    )
+    systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
+
+    if action is ConfigActions.ENABLE:
+
+        def thread_unit_config():
+            """Change configuration asynchronously."""
+            # Dbus call: UnmaskUnitFiles(in as files, in b runtime, out a(sss) changes
+            lst_change_unmask = systemd_manager.UnmaskUnitFiles([unit], False)
+
+            # Dbus call: EnableUnitFiles(in as files, in b runtime, in b force,
+            #                            out b carries_install_info, out a(sss) changes
+            lst_change_enable = systemd_manager.EnableUnitFiles([unit], False, False)
+            if lst_change_unmask or lst_change_enable:
+                # Reload systemd after modified unit property
+                systemd_manager.Reload()
+
+        Thread(target=thread_unit_config, daemon=True).start()
+
+        # Dbus call: StartUnit(in s name, in s mode, out o job
+        systemd_manager.StartUnit(unit, "replace")
+
+    elif action is ConfigActions.DISABLE:
+
+        def thread_unit_config():
+            """Change configuration asynchronously."""
+            # Dbus call: DisableUnitFiles (in as files, in b runtime, out a(sss) changes)
+            change = systemd_manager.DisableUnitFiles([unit], False)
+            if change:
+                # Reload systemd after modified unit property
+                systemd_manager.Reload()
+
+        Thread(target=thread_unit_config, daemon=True).start()
+
+        # Dbus call: StopUnit(in s name,in s mode, out o job
+        systemd_manager.StopUnit(unit, "replace")
+
+
+    elif action is ConfigActions.STATUS:
+        try:
+            unit_path = systemd_manager.LoadUnit(unit)
+            properties = bus.get("org.freedesktop.systemd1", unit_path)
+        except Exception:
+            log.warning(f"could not get systemd unit {unit}")
+            return False
+
+        return properties.UnitFileState == "enabled" and properties.ActiveState == "active"
+
+    elif action is ConfigActions.AVAILABLE:
+        try:
+            unit_path = systemd_manager.LoadUnit(unit)
+            properties = bus.get("org.freedesktop.systemd1", unit_path)
+        except Exception:
+            log.warning(f"could not get systemd unit {unit}")
+            return False
+
+        return properties.LoadState != "not-found"
+
+    else:
+        raise ValueError(f"action {action} not supported")
+
+    return None
+
+
 if __name__ == "__main__":
     rc = RevPiConfig()
     print("Model:", rc.model)

src/revpi_middleware/dbus_middleware1/systemd_helper.py

@@ -1,121 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-from enum import Enum
-from logging import getLogger
-from threading import Thread
-from typing import Optional
-
-from pydbus import SystemBus
-
-log = getLogger(__name__)
-
-
-class ServiceActions(Enum):
-    """
-    Enumeration class for defining configuration actions.
-
-    This enumeration provides predefined constants for common configuration
-    actions. It can be used to ensure consistency when working with or defining
-    such actions in a system.
-    """
-
-    ENABLE = "enable"
-    DISABLE = "disable"
-    STATUS = "status"
-    AVAILABLE = "available"
-
-
-def simple_systemd(action: ServiceActions, unit: str, unmask: bool = False) -> Optional[bool]:
-    """
-    Perform systemd service actions such as enable, disable, check status, or availability.
-
-    This function interacts with the systemd D-Bus API to manage and query the
-    state of services on a system. The supported actions include enabling a systemd
-    unit, disabling it, starting/stopping a unit, and checking its status or
-    availability. The function supports asynchronous configuration changes through
-    threads where applicable.
-
-    Parameters:
-        action (ServiceActions): The action to perform on the systemd service.
-            Supported actions are ENABLE, DISABLE, STATUS, and AVAILABLE.
-        unit (str): The name of the systemd unit to operate on (e.g., "example.service").
-        unmask (bool): When enabling a unit, if True, any masked unit file will
-            first be unmasked before proceeding with the operation. Defaults to False.
-
-    Returns:
-        Optional[bool]: The return value depends on the action. For STATUS or
-            AVAILABLE actions, it returns True if the unit satisfies the condition
-            (e.g., enabled and active, or available and loaded), False otherwise.
-            For other actions, it returns None.
-    """
-    bus = SystemBus()
-    systemd = bus.get(
-        "org.freedesktop.systemd1",
-        "/org/freedesktop/systemd1",
-    )
-    systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
-
-    if action is ServiceActions.ENABLE:
-
-        def thread_unit_config():
-            """Change configuration asynchronously."""
-            lst_change_unmask = []
-            if unmask:
-                # Dbus call: UnmaskUnitFiles(in as files, in b runtime, out a(sss) changes
-                lst_change_unmask = systemd_manager.UnmaskUnitFiles([unit], False)
-
-            # Dbus call: EnableUnitFiles(in as files, in b runtime, in b force,
-            #                            out b carries_install_info, out a(sss) changes
-            lst_change_enable = systemd_manager.EnableUnitFiles([unit], False, False)
-            if lst_change_unmask or lst_change_enable:
-                # Reload systemd after modified unit property
-                systemd_manager.Reload()
-
-        Thread(target=thread_unit_config, daemon=True).start()
-
-        # Dbus call: StartUnit(in s name, in s mode, out o job
-        systemd_manager.StartUnit(unit, "replace")
-
-    elif action is ServiceActions.DISABLE:
-
-        def thread_unit_config():
-            """Change configuration asynchronously."""
-            # Dbus call: DisableUnitFiles (in as files, in b runtime, out a(sss) changes)
-            change = systemd_manager.DisableUnitFiles([unit], False)
-            if change:
-                # Reload systemd after modified unit property
-                systemd_manager.Reload()
-
-        Thread(target=thread_unit_config, daemon=True).start()
-
-        # Dbus call: StopUnit(in s name,in s mode, out o job
-        systemd_manager.StopUnit(unit, "replace")
-
-    elif action is ServiceActions.STATUS:
-        try:
-            unit_path = systemd_manager.LoadUnit(unit)
-            properties = bus.get("org.freedesktop.systemd1", unit_path)
-        except Exception:
-            log.warning(f"could not get systemd unit {unit}")
-            return False
-
-        return properties.UnitFileState == "enabled" and properties.ActiveState in (
-            "active",
-            "activating",
-        )
-
-    elif action is ServiceActions.AVAILABLE:
-        try:
-            unit_path = systemd_manager.LoadUnit(unit)
-            properties = bus.get("org.freedesktop.systemd1", unit_path)
-        except Exception:
-            log.warning(f"could not get systemd unit {unit}")
-            return False
-
-        return properties.LoadState != "not-found"
-
-    else:
-        raise ValueError(f"action {action} not supported")
-
-    return None

src/revpi_middleware/ios1/__init__.py

@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""D-Bus ios version 1 of revpi_middleware."""
+from .ios1_helper import REVPI_DBUS_BASE_PATH, REVPI_DBUS_NAME

src/revpi_middleware/ios1/bus_provider_io.py

@@ -0,0 +1,100 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""D-Bus bus provider for revpi_middleware."""
+from logging import getLogger
+from threading import Thread
+
+import revpimodio2
+from gi.repository import GLib
+from pydbus import SessionBus, SystemBus
+from revpimodio2 import Cycletools
+
+from . import REVPI_DBUS_NAME
+from .interface_ios import (
+    InterfaceIoManager,
+    InterfaceInpBool,
+    InterfaceOutBool,
+    InterfaceInpInt,
+    InterfaceOutInt,
+)
+
+log = getLogger(__name__)
+
+
+class BusProviderIo(Thread):
+
+    def __init__(
+        self,
+        picontrol_device="/dev/piControl0",
+        config_rsc="/etc/revpi/config.rsc",
+        use_system_bus=True,
+    ):
+        log.debug("enter BusProviderIo.__init__")
+        super().__init__()
+
+        self._bus = SystemBus() if use_system_bus else SessionBus()
+        self._dc_io_interfaces = {}
+        self._loop = GLib.MainLoop()
+        self._modio = revpimodio2.RevPiModIO(
+            procimg=picontrol_device,
+            configrsc=config_rsc,
+            shared_procimg=True,
+        )
+
+        self.picontrol_device = picontrol_device
+        self.config_rsc = config_rsc
+
+    def run(self):
+        log.debug("enter BusProviderIo.run")
+
+        self._dc_io_interfaces.clear()
+
+        for io in self._modio.io:
+            interface = None
+            value_type = type(io.value)
+            if value_type is bool:
+                interface = (
+                    InterfaceInpBool(self._bus, io)
+                    if io.type == revpimodio2.INP
+                    else InterfaceOutBool(self._bus, io)
+                )
+            elif value_type is int:
+                interface = (
+                    InterfaceInpInt(self._bus, io)
+                    if io.type == revpimodio2.INP
+                    else InterfaceOutInt(self._bus, io)
+                )
+
+            if interface is not None:
+                self._dc_io_interfaces[io.name] = interface
+
+        lst_interfaces = [
+            (f"io/{io_name}", self._dc_io_interfaces[io_name]) for io_name in self._dc_io_interfaces
+        ]
+        try:
+            self._bus.publish(
+                REVPI_DBUS_NAME,
+                InterfaceIoManager(self._modio, self._dc_io_interfaces),
+                *lst_interfaces,
+            )
+        except Exception as e:
+            log.error(f"can not publish dbus {REVPI_DBUS_NAME}: {e}")
+
+        try:
+            self._loop.run()
+        except Exception as e:
+            log.error(f"can not run dbus mainloop: {e}")
+
+        self._modio.cleanup()
+
+        log.debug("leave BusProviderIo.run")
+
+    def stop(self):
+        log.debug("enter BusProviderIo.stop")
+        self._loop.quit()
+        log.debug("leave BusProviderIo.stop")
+
+    @property
+    def running(self):
+        return self._loop.is_running()

src/revpi_middleware/ios1/interface_ios.py

@@ -0,0 +1,159 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""D-Bus interfaces for IOs."""
+from gi.overrides.GLib import Variant
+from pydbus.generic import signal
+from revpimodio2 import RevPiModIO, Cycletools
+
+from .ios1_helper import REVPI_DBUS_BASE_PATH, DbusInterfaceIo
+
+
+class InterfaceIoManager:
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.IoManager">
+            <method name="GetAllInputs">
+                <arg type="as" direction="out"/>
+            </method>
+            <method name="GetAllOutputs">
+                <arg type="as" direction="out"/>
+            </method>
+            <method name="Get">
+                <arg name="io_name" type="s" direction="in"/>
+                <arg name="object-path" type="o" direction="out"/>
+            </method>
+            <method name="ActivateIoEvents">
+            </method>
+            <method name="DeactivateIoEvents">
+            </method>
+            <signal name="IoChanged">
+                <arg name="name" type="s" direction="out"/>
+                <arg name="value" type="v" direction="out"/>
+            </signal>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.IoManager"
+    IoChanged = signal()
+
+    def __init__(self, modio: RevPiModIO, io_interfaces: dict[str, DbusInterfaceIo]):
+        self._dc_io_interfaces = io_interfaces
+        self.modio = modio
+
+        self.lst_inp = []
+        for dev in self.modio.device:
+            for io in dev.get_inputs():
+                self.lst_inp.append(self._get_io_path(io.name))
+        self.lst_out = []
+        for dev in self.modio.device:
+            for io in dev.get_outputs():
+                self.lst_out.append(self._get_io_path(io.name))
+
+    def _modio_cycle(self, ct: Cycletools) -> None:
+        for io_name in self._dc_io_interfaces:
+            interface = self._dc_io_interfaces[io_name]
+            if ct.changed(interface.io):
+                interface.emit_io_change()
+                self.IoChanged(interface.io.name, Variant("b", interface.io.value))
+
+    def _get_io_path(self, io_name: str) -> str:
+        return f"{REVPI_DBUS_BASE_PATH}/io/{io_name}"
+
+    def GetAllInputs(self) -> list[str]:
+        return self.lst_inp
+
+    def GetAllOutputs(self) -> list[str]:
+        return self.lst_out
+
+    def Get(self, io_name) -> str:
+        if io_name in self.modio.io:
+            return self._get_io_path(io_name)
+
+        raise KeyError(f"No IO with name '{io_name}' found.")
+
+    def ActivateIoEvents(self) -> None:
+        if not self.modio._looprunning:
+            self.modio.autorefresh_all()
+            self.modio.cycleloop(self._modio_cycle, cycletime=50, blocking=False)
+
+    def DeactivateIoEvents(self) -> None:
+        self.modio.exit(False)
+
+
+class InterfaceInpBool(DbusInterfaceIo):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.InpBool">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="b" access="read"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.InpBool"
+
+    @property
+    def bmk(self) -> str:
+        return self.io.bmk
+
+    @property
+    def name(self) -> str:
+        return self.io.name
+
+    @property
+    def value(self) -> bool:
+        return self.io.value
+
+
+class InterfaceOutBool(InterfaceInpBool):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.OutBool">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="b" access="readwrite"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.OutBool"
+
+    @property
+    def value(self) -> bool:
+        return super().value
+
+    @value.setter
+    def value(self, value: bool):
+        self.io.value = value
+        self.io._parentdevice._modio.writeprocimg()
+
+
+class InterfaceInpInt(DbusInterfaceIo):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.InpInt">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="i" access="read"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.InpInt"
+
+
+class InterfaceOutInt(InterfaceInpInt):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.OutInt">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="i" access="readwrite"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.OutInt"

src/revpi_middleware/ios1/ios1_helper.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""Helper for io read and write."""
+from logging import getLogger
+
+from gi.overrides.GLib import Variant
+from pydbus import SessionBus, SystemBus
+from pydbus.generic import signal
+from revpimodio2.io import IOBase
+
+log = getLogger(__name__)
+
+REVPI_DBUS_NAME = "com.revolutionpi.ios1"
+REVPI_DBUS_BASE_PATH = "/com/revolutionpi/ios1"
+
+
+class DbusInterfaceIo:
+    interface_name = ""
+    PropertiesChanged = signal()
+
+    def __init__(self, dbus: SystemBus or SessionBus, io: IOBase):
+        self.dbus = dbus
+        self.io = io
+        self.variant_type = "b" if type(self.io.value) is bool else "i"
+
+    def emit_io_change(self):
+        if not self.interface_name:
+            return
+
+        if self.interface_name:
+            print(type(self.io.value))
+            self.PropertiesChanged(
+                self.interface_name,
+                {"value": int(self.io.value)},
+                [],
+            )