/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _INDUSTRIAL_IO_OPAQUE_H_ #define _INDUSTRIAL_IO_OPAQUE_H_ /** * struct iio_dev_opaque - industrial I/O device opaque information * @indio_dev: public industrial I/O device information * @id: used to identify device internally * @currentmode: operating mode currently in use, may be eventually * checked by device drivers but should be considered * read-only as this is a core internal bit * @driver_module: used to make it harder to undercut users * @mlock: lock used to prevent simultaneous device state changes * @mlock_key: lockdep class for iio_dev lock * @info_exist_lock: lock to prevent use during removal * @trig_readonly: mark the current trigger immutable * @event_interface: event chrdevs associated with interrupt lines * @attached_buffers: array of buffers statically attached by the driver * @attached_buffers_cnt: number of buffers in the array of statically attached buffers * @buffer_ioctl_handler: ioctl() handler for this IIO device's buffer interface * @buffer_list: list of all buffers currently attached * @channel_attr_list: keep track of automatically created channel * attributes * @chan_attr_group: group for all attrs in base directory * @ioctl_handlers: ioctl handlers registered with the core handler * @groups: attribute groups * @groupcounter: index of next attribute group * @legacy_scan_el_group: attribute group for legacy scan elements attribute group * @legacy_buffer_group: attribute group for legacy buffer attributes group * @bounce_buffer: for devices that call iio_push_to_buffers_with_timestamp_unaligned() * @bounce_buffer_size: size of currently allocate bounce buffer * @scan_index_timestamp: cache of the index to the timestamp * @clock_id: timestamping clock posix identifier * @chrdev: associated character device * @flags: file ops related flags including busy flag. * @debugfs_dentry: device specific debugfs dentry * @cached_reg_addr: cached register address for debugfs reads * @read_buf: read buffer to be used for the initial reg read * @read_buf_len: data length in @read_buf */ struct iio_dev_opaque { … }; #define to_iio_dev_opaque(_indio_dev) … #endif
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