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/* 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 indvidual
* drivers.
*/
#ifndef _IIO_CORE_H_
#define _IIO_CORE_H_
int __iio_add_chan_devattr(const char *postfix,
const char *group,
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),
int mask,
bool generic,
struct device *dev,
struct list_head *attr_list);
/* Event interface flags */
#define IIO_BUSY_BIT_POS 1
#ifdef CONFIG_IIO_RING_BUFFER
struct poll_table_struct;
void iio_chrdev_ring_open(struct iio_dev *indio_dev);
void iio_chrdev_ring_release(struct iio_dev *indio_dev);
unsigned int iio_ring_poll(struct file *filp,
struct poll_table_struct *wait);
ssize_t iio_ring_read_first_n_outer(struct file *filp, char __user *buf,
size_t n, loff_t *f_ps);
#define iio_ring_poll_addr (&iio_ring_poll)
#define iio_ring_read_first_n_outer_addr (&iio_ring_read_first_n_outer)
#else
static inline void iio_chrdev_ring_open(struct iio_dev *indio_dev)
{}
static inline void iio_chrdev_ring_release(struct iio_dev *indio_dev)
{}
#define iio_ring_poll_addr NULL
#define iio_ring_read_first_n_outer_addr NULL
#endif
#endif
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