--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/freeglut/src/android/fg_input_devices_android.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,52 @@
+/*
+ * fg_input_devices_android.c
+ *
+ * Handles miscellaneous input devices via direct serial-port access.
+ *
+ * Written by Joe Krahn <krahn@niehs.nih.gov> 2005
+ * Copyright (c) 2005 Stephen J. Baker. All Rights Reserved.
+ * Copied for Platform code by Evan Felix <karcaw at gmail.com>
+ * Copyright 2012 (C)  Sylvain Beucler
+ * Creation date: Thur Feb 2 2012
+ *
+ * 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
+ * PAWEL W. OLSZTA OR STEPHEN J. BAKER 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 <GL/freeglut.h>
+#include "fg_internal.h"
+typedef struct _serialport SERIALPORT;
+#include <stdio.h>
+
+/*
+ * This is only used if the user calls:
+ * glutDeviceGet(GLUT_HAS_DIAL_AND_BUTTON_BOX)
+ * and has old hardware called 'dials&buttons box'.
+ * http://www.reputable.com/sgipix/sgi-dialnbutton1.jpg
+ * 
+ * Not implemented on Android :)
+ * http://sourceforge.net/mailarchive/message.php?msg_id=29209505
+ */
+void fgPlatformRegisterDialDevice ( const char *dial_device ) {
+    fgWarning("GLUT_HAS_DIAL_AND_BUTTON_BOX: not implemented");
+}
+SERIALPORT *serial_open ( const char *device ) { return NULL; }
+void serial_close(SERIALPORT *port) {}
+int serial_getchar(SERIALPORT *port) { return EOF; }
+int serial_putchar(SERIALPORT *port, unsigned char ch) { return 0; }
+void serial_flush ( SERIALPORT *port ) {}