driver.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Industrial I/O in kernel access map interface.
 4 *
 5 * Copyright (c) 2011 Jonathan Cameron
 6 */
 7
 8#ifndef _IIO_INKERN_H_
 9#define _IIO_INKERN_H_
10
11struct device;
12struct iio_dev;
13struct iio_map;
14
15/**
16 * iio_map_array_register() - tell the core about inkernel consumers
17 * @indio_dev:	provider device
18 * @map:	array of mappings specifying association of channel with client
19 */
20int iio_map_array_register(struct iio_dev *indio_dev,
21			   const struct iio_map *map);
22
23/**
24 * iio_map_array_unregister() - tell the core to remove consumer mappings for
25 *				the given provider device
26 * @indio_dev:	provider device
27 */
28int iio_map_array_unregister(struct iio_dev *indio_dev);
29
30/**
31 * devm_iio_map_array_register - device-managed version of iio_map_array_register
32 * @dev:	Device object to which to bind the unwinding of this registration
33 * @indio_dev:	Pointer to the iio_dev structure
34 * @maps:	Pointer to an IIO map object which is to be registered to this IIO device
35 *
36 * This function will call iio_map_array_register() to register an IIO map object
37 * and will also hook a callback to the iio_map_array_unregister() function to
38 * handle de-registration of the IIO map object when the device's refcount goes to
39 * zero.
40 */
41int devm_iio_map_array_register(struct device *dev, struct iio_dev *indio_dev,
42				const struct iio_map *maps);
43
44#endif