/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core - generic buffer interfaces. * * Copyright (c) 2008 Jonathan Cameron */ #ifndef _IIO_BUFFER_GENERIC_H_ #define _IIO_BUFFER_GENERIC_H_ #include <linux/sysfs.h> #include <linux/iio/iio.h> struct iio_buffer; void iio_buffer_set_attrs(struct iio_buffer *buffer, const struct attribute **attrs); int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data); /** * iio_push_to_buffers_with_timestamp() - push data and timestamp to buffers * @indio_dev: iio_dev structure for device. * @data: sample data * @timestamp: timestamp for the sample data * * Pushes data to the IIO device's buffers. If timestamps are enabled for the * device the function will store the supplied timestamp as the last element in * the sample data buffer before pushing it to the device buffers. The sample * data buffer needs to be large enough to hold the additional timestamp * (usually the buffer should be indio->scan_bytes bytes large). * * Returns 0 on success, a negative error code otherwise. */ static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev, void *data, int64_t timestamp) { if (indio_dev->scan_timestamp) { size_t ts_offset = indio_dev->scan_bytes / sizeof(int64_t) - 1; ((int64_t *)data)[ts_offset] = timestamp; } return iio_push_to_buffers(indio_dev, data); } bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev, const unsigned long *mask); void iio_device_attach_buffer(struct iio_dev *indio_dev, struct iio_buffer *buffer); #endif /* _IIO_BUFFER_GENERIC_H_ */