#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