--- /dev/null
+/*
+ * Lantiq GPIO button support
+ *
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#ifndef _LANTIQ_DEV_GPIO_BUTTONS_H
+#define _LANTIQ_DEV_GPIO_BUTTONS_H
+
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+#define LTQ_KEYS_POLL_INTERVAL 20 /* msecs */
+#define LTQ_KEYS_DEBOUNCE_INTERVAL (3 * LTQ_KEYS_POLL_INTERVAL)
+
+void ltq_register_gpio_keys_polled(int id,
+ unsigned poll_interval,
+ unsigned nbuttons,
+ struct gpio_keys_button *buttons);
+
+#endif /* _LANTIQ_DEV_GPIO_BUTTONS_H */