/* The industrial I/O core function defs. * * Copyright (c) 2008 Jonathan Cameron * * 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. * * These definitions are meant for use only within the IIO core, not individual * drivers. */ #ifndef _IIO_CORE_H_ #define _IIO_CORE_H_ #include <linux/kernel.h> #include <linux/device.h> struct iio_chan_spec; struct iio_dev; int __iio_add_chan_devattr(const char *postfix, struct iio_chan_spec const *chan, ssize_t (*func)(struct device *dev, struct device_attribute *attr, char *buf), ssize_t (*writefunc)(struct device *dev, struct device_attribute *attr, const char *buf, size_t len), u64 mask, bool generic, struct device *dev, struct list_head *attr_list); /* Event interface flags */ #define IIO_BUSY_BIT_POS 1 #ifdef CONFIG_IIO_BUFFER struct poll_table_struct; unsigned int iio_buffer_poll(struct file *filp, struct poll_table_struct *wait); ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, size_t n, loff_t *f_ps); #define iio_buffer_poll_addr (&iio_buffer_poll) #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer) #else #define iio_buffer_poll_addr NULL #define iio_buffer_read_first_n_outer_addr NULL #endif int iio_device_register_eventset(struct iio_dev *indio_dev); void iio_device_unregister_eventset(struct iio_dev *indio_dev); int iio_event_getfd(struct iio_dev *indio_dev); #endif