/* 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 * @event_interface: event chrdevs associated with interrupt lines * @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 * @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; struct iio_event_interface *event_interface; struct list_head buffer_list; struct list_head channel_attr_list; struct attribute_group chan_attr_group; struct list_head ioctl_handlers; #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