--- /dev/null
+/* -*- c++ -*- */
+/*
+ * Copyright 2008 Free Software Foundation, Inc.
+ *
+ * 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef INCLUDED_AD9510_H
+#define INCLUDED_AD9510_H
+
+#include <stdint.h>
+
+/*
+ * Analog Device AD9510 1.2 GHz Clock Distribution IC w/ PLL
+ */
+
+void ad9510_write_reg(int regno, uint8_t value);
+int ad9510_read_reg(int regno);
+
+#endif /* INCLUDED_AD9510_H */