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diff --git a/circuitpython/shared-bindings/rotaryio/__init__.c b/circuitpython/shared-bindings/rotaryio/__init__.c
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+++ b/circuitpython/shared-bindings/rotaryio/__init__.c
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+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+
+#include "py/obj.h"
+#include "py/runtime.h"
+
+#include "shared-bindings/microcontroller/Pin.h"
+#include "shared-bindings/rotaryio/__init__.h"
+#include "shared-bindings/rotaryio/IncrementalEncoder.h"
+
+//| """Support for reading rotation sensors
+//|
+//| The `rotaryio` module contains classes to read different rotation encoding schemes. See
+//| `Wikipedia's Rotary Encoder page <https://en.wikipedia.org/wiki/Rotary_encoder>`_ for more
+//| background.
+//|
+//| All classes change hardware state and should be deinitialized when they
+//| are no longer needed if the program continues after use. To do so, either
+//| call :py:meth:`!deinit` or use a context manager. See
+//| :ref:`lifetime-and-contextmanagers` for more info."""
+//|
+
+STATIC const mp_rom_map_elem_t rotaryio_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_rotaryio) },
+    { MP_ROM_QSTR(MP_QSTR_IncrementalEncoder), MP_ROM_PTR(&rotaryio_incrementalencoder_type) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(rotaryio_module_globals, rotaryio_module_globals_table);
+
+const mp_obj_module_t rotaryio_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t *)&rotaryio_module_globals,
+};
+
+MP_REGISTER_MODULE(MP_QSTR_rotaryio, rotaryio_module, CIRCUITPY_ROTARYIO);