Fix MK2(.5) SN not working on multi-instance images

prusa3d · Jul 19, 2023 · 257dd0b · 257dd0b
1 parent 15aa314
commit 257dd0b
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diff --git a/ChangeLog b/ChangeLog
@@ -23,6 +23,7 @@
         - Hide zero temperatures in telemetry
         - Add support to be running behind the proxy
     * Hold the STOPPED and FINISHED state for at least 11s
+    * Fix MK2(.5)S SN being broken on multi-instance images
 
 0.7.0 (2023-05-19)
     * Fixed printer sends info about api key change to Connect after change

diff --git a/prusa/link/serial/serial_adapter.py b/prusa/link/serial/serial_adapter.py
@@ -195,7 +195,9 @@ def _reopen(self) -> bool:
                 paths.extend(glob.glob("/dev/ttyACM*"))
                 paths.extend(glob.glob("/dev/ttyUSB*"))
             else:
-                paths = [self.configured_port]
+                # Follow symlinks to the real device file
+                device_path = os.path.relpath(self.configured_port)
+                paths = [device_path]
 
             # Pair the usb printer paths with their serial numbers
             usb_printers = {