관리-도구

편집 파일: iio-opaque.h

/* 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 * @driver_module: used to make it harder to undercut users * @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 { struct iio_dev indio_dev; int id; struct module *driver_module; struct mutex info_exist_lock; bool trig_readonly; struct iio_event_interface *event_interface; struct iio_buffer **attached_buffers; unsigned int attached_buffers_cnt; struct iio_ioctl_handler *buffer_ioctl_handler; struct list_head buffer_list; struct list_head channel_attr_list; struct attribute_group chan_attr_group; struct list_head ioctl_handlers; const struct attribute_group **groups; int groupcounter; struct attribute_group legacy_scan_el_group; struct attribute_group legacy_buffer_group; void *bounce_buffer; size_t bounce_buffer_size; unsigned int scan_index_timestamp; clockid_t clock_id; struct cdev chrdev; unsigned long flags; #if defined(CONFIG_DEBUG_FS) struct dentry *debugfs_dentry; unsigned cached_reg_addr; char read_buf[20]; unsigned int read_buf_len; #endif }; #define to_iio_dev_opaque(_indio_dev) \ container_of((_indio_dev), struct iio_dev_opaque, indio_dev) #endif