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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 | ||
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13 | #ifndef _IIO_CORE_H_ |
14 | #define _IIO_CORE_H_ | |
15 | ||
df9c1c42 | 16 | int __iio_add_chan_devattr(const char *postfix, |
df9c1c42 JC |
17 | struct iio_chan_spec const *chan, |
18 | ssize_t (*func)(struct device *dev, | |
19 | struct device_attribute *attr, | |
20 | char *buf), | |
21 | ssize_t (*writefunc)(struct device *dev, | |
22 | struct device_attribute *attr, | |
23 | const char *buf, | |
24 | size_t len), | |
e614a54b | 25 | u64 mask, |
df9c1c42 JC |
26 | bool generic, |
27 | struct device *dev, | |
28 | struct list_head *attr_list); | |
29 | ||
30 | /* Event interface flags */ | |
31 | #define IIO_BUSY_BIT_POS 1 | |
1aa04278 | 32 | |
f2a96245 | 33 | #ifdef CONFIG_IIO_BUFFER |
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34 | struct poll_table_struct; |
35 | ||
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36 | unsigned int iio_buffer_poll(struct file *filp, |
37 | struct poll_table_struct *wait); | |
38 | ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, | |
39 | size_t n, loff_t *f_ps); | |
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40 | |
41 | ||
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42 | #define iio_buffer_poll_addr (&iio_buffer_poll) |
43 | #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer) | |
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44 | |
45 | #else | |
46 | ||
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47 | #define iio_buffer_poll_addr NULL |
48 | #define iio_buffer_read_first_n_outer_addr NULL | |
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49 | |
50 | #endif | |
51 | ||
52 | #endif |