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 11 struct device; 12 struct iio_dev; 13 struct 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 */ 20 int iio_map_array_register(struct iio_dev *indio_dev, 21 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 */ 28 int 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 */ 41 int devm_iio_map_array_register(struct device *dev, struct iio_dev *indio_dev, struct iio_map *maps); 42 43 #endif 44