linux/iio/iio.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
39  * struct iio_chan_spec_ext_info - Extended channel info attribute
58  * struct iio_enum - Enum channel info attribute
89  * IIO_ENUM() - Initialize enum extended channel attribute
106  * IIO_ENUM_AVAILABLE() - Initialize enum available extended channel attribute
123  * struct iio_mount_matrix - iio mounting matrix
140  * IIO_MOUNT_MATRIX() - Initialize mount matrix extended channel attribute
153  * struct iio_event_spec - specification for a channel event
176  * struct iio_chan_spec - specification of a single channel
225  *			iio_info->read_label() to override the label, which
227  * @datasheet_name:	A name used in in-kernel mapping of channels. It should
230  *			possible compound name (e.g. IND-INC).
276  * iio_channel_has_info() - Checks whether a channel supports a info attribute
286 	return (chan->info_mask_separate & BIT(type)) |  in iio_channel_has_info()
287 		(chan->info_mask_shared_by_type & BIT(type)) |  in iio_channel_has_info()
288 		(chan->info_mask_shared_by_dir & BIT(type)) |  in iio_channel_has_info()
289 		(chan->info_mask_shared_by_all & BIT(type));  in iio_channel_has_info()
293  * iio_channel_has_available() - Checks if a channel has an available attribute
303 	return (chan->info_mask_separate_available & BIT(type)) |  in iio_channel_has_available()
304 		(chan->info_mask_shared_by_type_available & BIT(type)) |  in iio_channel_has_available()
305 		(chan->info_mask_shared_by_dir_available & BIT(type)) |  in iio_channel_has_available()
306 		(chan->info_mask_shared_by_all_available & BIT(type));  in iio_channel_has_available()
311 	.channel = -1,							\
326  *    on-demand reads.
327  * b) A new value after performing an on-demand read otherwise.
328  * On most devices, this is a single-shot read. On some devices with data
329  * streams without an 'on-demand' function, this might also be the 'last value'
395  * struct iio_info - constant information about device
439  *			fifo watermark level; see hwfifo_* entries in
440  *			Documentation/ABI/testing/sysfs-bus-iio for details on
441  *			how the hardware fifo operates
443  *			in the hardware fifo to the device buffer. The driver
531  * struct iio_buffer_setup_ops - buffer setup related callbacks
550  * struct iio_dev - industrial I/O device
614  * iio_device_register() - register a device with the IIO subsystem
622  * devm_iio_device_register - Resource-managed iio_device_register()
647  * iio_device_put() - reference counted deallocation of struct device
653 		put_device(&indio_dev->dev);  in iio_device_put()
660  * dev_to_iio_dev() - Get IIO device struct from a device struct
671  * iio_device_get() - increment reference count for the device
678 	return indio_dev ? dev_to_iio_dev(get_device(&indio_dev->dev)) : NULL;  in iio_device_get()
682  * iio_device_set_parent() - assign parent device to the IIO device object
699 	indio_dev->dev.parent = parent;  in iio_device_set_parent()
703  * iio_device_set_drvdata() - Set device driver data
712 	dev_set_drvdata(&indio_dev->dev, data);  in iio_device_set_drvdata()
716  * iio_device_get_drvdata() - Get device driver data
723 	return dev_get_drvdata(&indio_dev->dev);  in iio_device_get_drvdata()
727  * Used to ensure the iio_priv() structure is aligned to allow that structure
730  * them safe for use with non-coherent DMA.
735 /* The information at the returned address is guaranteed to be cacheline aligned */
738 	return indio_dev->priv;  in iio_priv()
751  * iio_get_debugfs_dentry() - helper function to get the debugfs_dentry
769  * IIO_DEGREE_TO_RAD() - Convert degree to rad
777  * IIO_RAD_TO_DEGREE() - Convert rad to degree
786  * IIO_G_TO_M_S_2() - Convert g to meter / second**2
794  * IIO_M_S_2_TO_G() - Convert meter / second**2 to g