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#ifndef _INPUT_POLLDEV_H

#define _INPUT_POLLDEV_H

/*

 * Copyright (c) 2007 Dmitry Torokhov

 *

 * 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.

 */

#include <linux/input.h>

#include <linux/workqueue.h>

/**

 * struct input_polled_dev - simple polled input device

 * @private: private driver data

 * @flush: driver-supplied method that flushes device's state upon

 *      opening (optional)

 * @poll: driver-supplied method that polls the device and posts

 *      input events (mandatory).

 * @poll_interval: specifies how often the poll() method shoudl be called.

 * @input: input device structire associated with the polled device.

 *      Must be properly initialized by the driver (id, name, phys, bits).

 *

 * Polled input device provides a skeleton for supporting simple input

 * devices that do not raise interrupts but have to be periodically

 * scanned or polled to detect changes in their state.

 */

struct input_polled_dev {

        void *private;

        void (*flush)(struct input_polled_dev *dev);

        void (*poll)(struct input_polled_dev *dev);

        unsigned int poll_interval; /* msec */

        struct input_dev *input;

        struct delayed_work work;

};

struct input_polled_dev *input_allocate_polled_device(void);

void input_free_polled_device(struct input_polled_dev *dev);

int input_register_polled_device(struct input_polled_dev *dev);

void input_unregister_polled_device(struct input_polled_dev *dev);

#endif