diff --git a/include/chipdrivers/opaque.h b/include/chipdrivers/opaque.h
new file mode 100644
index 0000000..a621f66
--- /dev/null
+++ b/include/chipdrivers/opaque.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2009 Carl-Daniel Hailfinger
+ *
+ * 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.
+ */
+
+#ifndef __CHIPDRIVERS_OPAQUE_H__
+#define __CHIPDRIVERS_OPAQUE_H__ 1
+
+#include <stdint.h>
+
+struct flashprog_flashctx;
+
+int probe_opaque(struct flashprog_flashctx *);
+int read_opaque(struct flashprog_flashctx *, uint8_t *buf, unsigned int start, unsigned int len);
+int write_opaque(struct flashprog_flashctx *, const uint8_t *buf, unsigned int start, unsigned int len);
+int erase_opaque(struct flashprog_flashctx *, unsigned int blockaddr, unsigned int blocklen);
+
+#endif /* !__CHIPDRIVERS_OPAQUE_H__ */