projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| df9c1c42 JC |
1 | /* The industrial I/O core function defs. |
| 2 | * | |
| 3 | * Copyright (c) 2008 Jonathan Cameron | |
| 4 | * | |
| 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. | |
| 8 | * | |
| cecfb931 | 9 | * These definitions are meant for use only within the IIO core, not individual |
| df9c1c42 JC |
10 | * drivers. |
| 11 | */ | |
| 12 | ||
| 1aa04278 JC |
13 | #ifndef _IIO_CORE_H_ |
| 14 | #define _IIO_CORE_H_ | |
| ef97d421 JC |
15 | #include <linux/kernel.h> |
| 16 | #include <linux/device.h> | |
| 17 | ||
| 18 | struct iio_chan_spec; | |
| 19 | struct iio_dev; | |
| 20 | ||
| 17d82b47 | 21 | extern struct device_type iio_device_type; |
| 1aa04278 | 22 | |
| df9c1c42 | 23 | int __iio_add_chan_devattr(const char *postfix, |
| df9c1c42 JC |
24 | struct iio_chan_spec const *chan, |
| 25 | ssize_t (*func)(struct device *dev, | |
| 26 | struct device_attribute *attr, | |
| 27 | char *buf), | |
| 28 | ssize_t (*writefunc)(struct device *dev, | |
| 29 | struct device_attribute *attr, | |
| 30 | const char *buf, | |
| 31 | size_t len), | |
| e614a54b | 32 | u64 mask, |
| df9c1c42 JC |
33 | bool generic, |
| 34 | struct device *dev, | |
| 35 | struct list_head *attr_list); | |
| 36 | ||
| 37 | /* Event interface flags */ | |
| 38 | #define IIO_BUSY_BIT_POS 1 | |
| 1aa04278 | 39 | |
| f2a96245 | 40 | #ifdef CONFIG_IIO_BUFFER |
| 1aa04278 JC |
41 | struct poll_table_struct; |
| 42 | ||
| 14555b14 JC |
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); | |
| 1aa04278 JC |
47 | |
| 48 | ||
| 14555b14 JC |
49 | #define iio_buffer_poll_addr (&iio_buffer_poll) |
| 50 | #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer) | |
| 1aa04278 JC |
51 | |
| 52 | #else | |
| 53 | ||
| 14555b14 JC |
54 | #define iio_buffer_poll_addr NULL |
| 55 | #define iio_buffer_read_first_n_outer_addr NULL | |
| 1aa04278 JC |
56 | |
| 57 | #endif | |
| 58 | ||
| 0a769a95 LPC |
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); | |
| 62 | ||
| 1aa04278 | 63 | #endif |