1 /* SPDX-License-Identifier: GPL-2.0 */
3 #ifndef _INDUSTRIAL_IO_OPAQUE_H_
4 #define _INDUSTRIAL_IO_OPAQUE_H_
7 * struct iio_dev_opaque - industrial I/O device opaque information
8 * @indio_dev: public industrial I/O device information
9 * @event_interface: event chrdevs associated with interrupt lines
10 * @buffer_list: list of all buffers currently attached
11 * @channel_attr_list: keep track of automatically created channel
13 * @chan_attr_group: group for all attrs in base directory
14 * @debugfs_dentry: device specific debugfs dentry
15 * @cached_reg_addr: cached register address for debugfs reads
16 * @read_buf: read buffer to be used for the initial reg read
17 * @read_buf_len: data length in @read_buf
19 struct iio_dev_opaque {
20 struct iio_dev indio_dev;
21 struct iio_event_interface *event_interface;
22 struct list_head buffer_list;
23 struct list_head channel_attr_list;
24 struct attribute_group chan_attr_group;
25 #if defined(CONFIG_DEBUG_FS)
26 struct dentry *debugfs_dentry;
27 unsigned cached_reg_addr;
29 unsigned int read_buf_len;
33 #define to_iio_dev_opaque(indio_dev) \
34 container_of(indio_dev, struct iio_dev_opaque, indio_dev)