micropython · dpgeorge · Sep 29, 2023 · Sep 14, 2023 · Sep 14, 2023
diff --git a/extmod/asyncio/event.py b/extmod/asyncio/event.py
@@ -49,7 +49,7 @@ def __init__(self):
         def ioctl(self, req, flags):
             if req == 3:  # MP_STREAM_POLL
                 return self.state * flags
-            return None
+            return -1  # Other requests are unsupported
 
         def set(self):
             self.state = 1

diff --git a/tests/extmod/asyncio_threadsafeflag.py b/tests/extmod/asyncio_threadsafeflag.py
@@ -16,27 +16,14 @@
     raise SystemExit
 
 
-try:
-    # Unix port can't select/poll on user-defined types.
-    import select
-
-    poller = select.poll()
-    poller.register(asyncio.ThreadSafeFlag())
-except TypeError:
-    print("SKIP")
-    raise SystemExit
-
-
 async def task(id, flag):
     print("task", id)
     await flag.wait()
     print("task", id, "done")
 
 
 def set_from_schedule(flag):
-    print("schedule")
     flag.set()
-    print("schedule done")
 
 
 async def main():

diff --git a/tests/extmod/asyncio_threadsafeflag.py.exp b/tests/extmod/asyncio_threadsafeflag.py.exp
@@ -9,8 +9,6 @@ yield
 task 2
 set event
 yield
-schedule
-schedule done
 wait task
 task 2 done
 ----