linux/iio/iio.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
37  * struct iio_chan_spec_ext_info - Extended channel info attribute
39  * @shared:	Whether this attribute is shared between all channels.
56  * struct iio_enum - Enum channel info attribute
87  * IIO_ENUM() - Initialize enum extended channel attribute
89  * @_shared:	Whether the attribute is shared between all channels
104  * IIO_ENUM_AVAILABLE() - Initialize enum available extended channel attribute
120  * struct iio_mount_matrix - iio mounting matrix
138  * IIO_MOUNT_MATRIX() - Initialize mount matrix extended channel attribute
139  * @_shared:	Whether the attribute is shared between all channels
151  * struct iio_event_spec - specification for a channel event
162  *			    set in this mask will be shared by all channels.
174  * struct iio_chan_spec - specification of a single channel
200  *			by all channels of the same type.
202  *			exported that is shared by all channels of the same
205  *			by all channels of the same direction.
207  *			exported that is shared by all channels of the same
210  *			by all channels.
212  *			exported that is shared by all channels.
222  * @datasheet_name:	A name used in in-kernel mapping of channels. It should
225  *			possible compound name (e.g. IND-INC).
271  * iio_channel_has_info() - Checks whether a channel supports a info attribute
275  * Returns true if the channels supports reporting values for the given info
281 	return (chan->info_mask_separate & BIT(type)) |  in iio_channel_has_info()
282 		(chan->info_mask_shared_by_type & BIT(type)) |  in iio_channel_has_info()
283 		(chan->info_mask_shared_by_dir & BIT(type)) |  in iio_channel_has_info()
284 		(chan->info_mask_shared_by_all & BIT(type));  in iio_channel_has_info()
288  * iio_channel_has_available() - Checks if a channel has an available attribute
298 	return (chan->info_mask_separate_available & BIT(type)) |  in iio_channel_has_available()
299 		(chan->info_mask_shared_by_type_available & BIT(type)) |  in iio_channel_has_available()
300 		(chan->info_mask_shared_by_dir_available & BIT(type)) |  in iio_channel_has_available()
301 		(chan->info_mask_shared_by_all_available & BIT(type));  in iio_channel_has_available()
306 	.channel = -1,							\
339  * struct iio_info - constant information about device
375  *			channels have changed
378  *			When #iio-cells is greater than '0', the driver could
381  *			IIO channels array.
384  *			Documentation/ABI/testing/sysfs-bus-iio for details on
465  * struct iio_buffer_setup_ops - buffer setup related callbacks
484  * struct iio_dev - industrial I/O device
497  *			channels
505  * @channels:		[DRIVER] channel specification structure table
506  * @num_channels:	[DRIVER] number of channels specified in @channels.
543 	struct iio_chan_spec const	*channels;  member
564  * iio_device_register() - register a device with the IIO subsystem
572  * devm_iio_device_register - Resource-managed iio_device_register()
595  * iio_device_put() - reference counted deallocation of struct device
601 		put_device(&indio_dev->dev);  in iio_device_put()
605  * iio_device_get_clock() - Retrieve current timestamping clock for the device
610 	return indio_dev->clock_id;  in iio_device_get_clock()
616  * dev_to_iio_dev() - Get IIO device struct from a device struct
627  * iio_device_get() - increment reference count for the device
634 	return indio_dev ? dev_to_iio_dev(get_device(&indio_dev->dev)) : NULL;  in iio_device_get()
638  * iio_device_set_parent() - assign parent device to the IIO device object
655 	indio_dev->dev.parent = parent;  in iio_device_set_parent()
659  * iio_device_set_drvdata() - Set device driver data
668 	dev_set_drvdata(&indio_dev->dev, data);  in iio_device_set_drvdata()
672  * iio_device_get_drvdata() - Get device driver data
679 	return dev_get_drvdata(&indio_dev->dev);  in iio_device_get_drvdata()
689 	return indio_dev->priv;  in iio_priv()
698  * iio_buffer_enabled() - helper function to test if the buffer is enabled
703 	return indio_dev->currentmode  in iio_buffer_enabled()
709  * iio_get_debugfs_dentry() - helper function to get the debugfs_dentry
727  * IIO_DEGREE_TO_RAD() - Convert degree to rad
735  * IIO_RAD_TO_DEGREE() - Convert rad to degree
744  * IIO_G_TO_M_S_2() - Convert g to meter / second**2
752  * IIO_M_S_2_TO_G() - Convert meter / second**2 to g