resource/udev: warn on initializing USBNetworkInterface with ifname

Similar to USBSerialPort's `port` attribute, USBNetworkInterface's `ifname` attribute is overwritten by udev. Add a warning to make that clear. Signed-off-by: Bastian Krause <[email protected]>
Bastian-Krause · Jul 28, 2023 · 4228d2a · 4228d2a
1 parent 3e1c0df
commit 4228d2a
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/labgrid/resource/udev.py b/labgrid/resource/udev.py
@@ -346,6 +346,11 @@ class USBNetworkInterface(USBResource, NetworkInterface):
     def __attrs_post_init__(self):
         self.match['SUBSYSTEM'] = 'net'
         self.match['@SUBSYSTEM'] = 'usb'
+        if self.ifname:
+            warnings.warn(
+                "USBNetworkInterface: The ifname attribute will be overwritten by udev.\n"
+                "Please use udev matching as described in http://labgrid.readthedocs.io/en/latest/configuration.html#udev-matching"  # pylint: disable=line-too-long
+            )
         super().__attrs_post_init__()
 
     def update(self):