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diff --git a/circuitpython/shared-bindings/displayio/__init__.h b/circuitpython/shared-bindings/displayio/__init__.h
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+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYIO___INIT___H
+#define MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYIO___INIT___H
+
+#include "py/enum.h"
+#include "py/obj.h"
+
+typedef enum {
+    DISPLAY_COMMAND,
+    DISPLAY_DATA
+} display_byte_type_t;
+
+typedef enum {
+    CHIP_SELECT_UNTOUCHED,
+    CHIP_SELECT_TOGGLE_EVERY_BYTE
+} display_chip_select_behavior_t;
+
+typedef enum displayio_colorspace {
+    DISPLAYIO_COLORSPACE_RGB888,
+    DISPLAYIO_COLORSPACE_RGB565,
+    DISPLAYIO_COLORSPACE_RGB555,
+    DISPLAYIO_COLORSPACE_RGB565_SWAPPED,
+    DISPLAYIO_COLORSPACE_RGB555_SWAPPED,
+    DISPLAYIO_COLORSPACE_BGR565,
+    DISPLAYIO_COLORSPACE_BGR555,
+    DISPLAYIO_COLORSPACE_BGR565_SWAPPED,
+    DISPLAYIO_COLORSPACE_BGR555_SWAPPED,
+    DISPLAYIO_COLORSPACE_L8,
+} displayio_colorspace_t;
+
+typedef bool (*display_bus_bus_reset)(mp_obj_t bus);
+typedef bool (*display_bus_bus_free)(mp_obj_t bus);
+typedef bool (*display_bus_begin_transaction)(mp_obj_t bus);
+typedef void (*display_bus_send)(mp_obj_t bus, display_byte_type_t byte_type,
+    display_chip_select_behavior_t chip_select, const uint8_t *data, uint32_t data_length);
+typedef void (*display_bus_end_transaction)(mp_obj_t bus);
+
+void common_hal_displayio_release_displays(void);
+
+extern const mp_obj_type_t displayio_colorspace_type;
+extern const cp_enum_obj_t displayio_colorspace_RGB888_obj;
+
+#endif  // MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYIO___INIT___H