--- /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 _AO_DFU_H_
+#define _AO_DFU_H_
+
+struct ao_dfu_info {
+ uint16_t bcdDevice;
+ uint16_t idProduct;
+ uint16_t idVendor;
+};
+
+#define DFU_SIGNATURE "DfuSe"
+#define DFU_SPEC_VERSION 0x011a
+
+#define DFU_TARGET_SIGNATURE "Target"
+
+int
+ao_dfu_write(FILE *file, struct ao_dfu_info *info, int num_image, struct ao_hex_image images[]);
+
+#endif /* _AO_DFU_H_ */