rename env variable

src/hhd/controller/base.py

@@ -94,7 +94,7 @@ def __init__(self, ctx=None) -> None:
         self._controller_cb = None
         self._qam_cb = None
         self.ctx = ctx
-        self.use_legacy_qam = bool(os.environ.get("HHD_LEGACY_QAM", None))
+        self.use_legacy_qam = bool(os.environ.get("HHD_QAM_LEGACY", None))
 
     def send_qam(self):
         with self.intercept_lock: