47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
#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
|