--- /dev/null
+/*
+ * Copyright © 2016 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#ifndef _LIBALTOS_PRIVATE_H_
+#define _LIBALTOS_PRIVATE_H_
+
+#include "libaltos.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define BLUETOOTH_PRODUCT_TELEBT "TeleBT"
+
+#define USB_BUF_SIZE 64
+
+struct altos_file {
+ /* Shared data */
+ unsigned char out_data[USB_BUF_SIZE];
+ int out_used;
+ unsigned char in_data[USB_BUF_SIZE];
+ int in_used;
+ int in_read;
+};
+
+#ifdef LINUX
+#define USE_POLL
+#endif
+
+#ifdef DARWIN
+#include <unistd.h>
+
+#define strndup(s,n) altos_strndup(s,n)
+
+char *altos_strndup(const char *s, size_t n);
+
+#endif
+
+void
+altos_set_last_error(int code, char *string);
+
+extern struct altos_error altos_last_error;
+
+PUBLIC int
+altos_flush(struct altos_file *file);
+
+int
+altos_fill(struct altos_file *file, int timeout);
+
+#endif /* _LIBALTOS_PRIVATE_H_ */