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
15 #include <linux/kernel.h>
16 #include <linux/device.h>
21 extern struct device_type iio_device_type;
23 int __iio_add_chan_devattr(const char *postfix,
24 struct iio_chan_spec const *chan,
25 ssize_t (*func)(struct device *dev,
26 struct device_attribute *attr,
28 ssize_t (*writefunc)(struct device *dev,
29 struct device_attribute *attr,
35 struct list_head *attr_list);
37 /* Event interface flags */
38 #define IIO_BUSY_BIT_POS 1
40 #ifdef CONFIG_IIO_BUFFER
41 struct poll_table_struct;
43 unsigned int iio_buffer_poll(struct file *filp,
44 struct poll_table_struct *wait);
45 ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
46 size_t n, loff_t *f_ps);
49 #define iio_buffer_poll_addr (&iio_buffer_poll)
50 #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
54 #define iio_buffer_poll_addr NULL
55 #define iio_buffer_read_first_n_outer_addr NULL
59 int iio_device_register_eventset(struct iio_dev *indio_dev);
60 void iio_device_unregister_eventset(struct iio_dev *indio_dev);
61 int iio_event_getfd(struct iio_dev *indio_dev);