diff options
Diffstat (limited to 'include/linux/iio')
| -rw-r--r-- | include/linux/iio/buffer.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index e5507e999ed1..a1124bdc4cac 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -122,6 +122,31 @@ int iio_scan_mask_set(struct iio_dev *indio_dev, */ 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); +} + int iio_update_demux(struct iio_dev *indio_dev); /** |