1 /* The industrial I/O core function defs.
3 * Copyright (c) 2008 Jonathan Cameron
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * These definitions are meant for use only within the IIO core, not individual
16 int __iio_add_chan_devattr(const char *postfix,
17 struct iio_chan_spec const *chan,
18 ssize_t (*func)(struct device *dev,
19 struct device_attribute *attr,
21 ssize_t (*writefunc)(struct device *dev,
22 struct device_attribute *attr,
28 struct list_head *attr_list);
30 /* Event interface flags */
31 #define IIO_BUSY_BIT_POS 1
33 #ifdef CONFIG_IIO_BUFFER
34 struct poll_table_struct;
36 int iio_chrdev_buffer_open(struct iio_dev *indio_dev);
37 void iio_chrdev_buffer_release(struct iio_dev *indio_dev);
39 unsigned int iio_buffer_poll(struct file *filp,
40 struct poll_table_struct *wait);
41 ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
42 size_t n, loff_t *f_ps);
45 #define iio_buffer_poll_addr (&iio_buffer_poll)
46 #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
50 static inline int iio_chrdev_buffer_open(struct iio_dev *indio_dev)
55 static inline void iio_chrdev_buffer_release(struct iio_dev *indio_dev)
58 #define iio_buffer_poll_addr NULL
59 #define iio_buffer_read_first_n_outer_addr NULL