Docs: Refactor icsneopy examples

examples/python/ethernet/ethernet_monitor_status.py

@@ -0,0 +1,37 @@
+"""
+Ethernet status monitoring example using icsneopy library.
+
+Demonstrates how to monitor Ethernet link status changes.
+"""
+
+import icsneopy
+import time
+
+def main():
+   devices = icsneopy.find_all_devices()
+   if len(devices) == 0:
+      print("error: no devices found")
+      return False
+
+   device = devices[0]
+   print(f"info: monitoring Ethernet status on {device}")
+
+   def on_message(message):
+      print(f"info: network: {message.network}, state: {message.state}, speed: {message.speed}, duplex: {message.duplex}, mode: {message.mode}")
+
+   filter = icsneopy.MessageFilter(icsneopy.Message.Type.EthernetStatus)
+   callback = icsneopy.MessageCallback(on_message, filter)
+   device.add_message_callback(callback)
+
+   if not device.open():
+      print("error: unable to open device")
+      return False
+
+   if not device.go_online():
+      print("error: unable to go online")
+      return False
+
+   while True:
+      time.sleep(1)
+
+main()