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STRUCT IIO_DEV(9) | Industrial I/O core | STRUCT IIO_DEV(9) |
NAME¶
struct_iio_dev - industrial I/O device
SYNOPSIS¶
struct iio_dev {
int id;
int modes;
int currentmode;
struct device dev;
struct iio_event_interface * event_interface;
struct iio_buffer * buffer;
struct list_head buffer_list;
int scan_bytes;
struct mutex mlock;
const unsigned long * available_scan_masks;
unsigned masklength;
const unsigned long * active_scan_mask;
bool scan_timestamp;
unsigned scan_index_timestamp;
struct iio_trigger * trig;
struct iio_poll_func * pollfunc;
struct iio_poll_func * pollfunc_event;
struct iio_chan_spec const * channels;
int num_channels;
struct list_head channel_attr_list;
struct attribute_group chan_attr_group;
const char * name;
const struct iio_info * info;
clockid_t clock_id;
struct mutex info_exist_lock;
const struct iio_buffer_setup_ops * setup_ops;
struct cdev chrdev; #define IIO_MAX_GROUPS 6
const struct attribute_group * groups[IIO_MAX_GROUPS + 1];
int groupcounter;
unsigned long flags; #if defined(CONFIG_DEBUG_FS)
struct dentry * debugfs_dentry;
unsigned cached_reg_addr; #endif };
MEMBERS¶
id
[INTERN] used to identify device internally
modes
[DRIVER] operating modes supported by device
currentmode
[DRIVER] current operating mode
dev
[DRIVER] device structure, should be assigned a parent
and owner
event_interface
[INTERN] event chrdevs associated with interrupt
lines
buffer
[DRIVER] any buffer present
buffer_list
[INTERN] list of all buffers currently attached
scan_bytes
[INTERN] num bytes captured to be fed to buffer
demux
mlock
[DRIVER] lock used to prevent simultaneous device state
changes
available_scan_masks
[DRIVER] optional array of allowed bitmasks
masklength
[INTERN] the length of the mask established from
channels
active_scan_mask
[INTERN] union of all scan masks requested by
buffers
scan_timestamp
[INTERN] set if any buffers have requested
timestamp
scan_index_timestamp
[INTERN] cache of the index to the timestamp
trig
[INTERN] current device trigger (buffer modes)
pollfunc
[DRIVER] function run on trigger being received
pollfunc_event
[DRIVER] function run on events trigger being
received
channels
[DRIVER] channel specification structure table
num_channels
[DRIVER] number of channels specified in
channels.
channel_attr_list
[INTERN] keep track of automatically created channel
attributes
chan_attr_group
[INTERN] group for all attrs in base directory
name
[DRIVER] name of the device.
info
[DRIVER] callbacks and constant info from driver
clock_id
[INTERN] timestamping clock posix identifier
info_exist_lock
[INTERN] lock to prevent use during removal
setup_ops
[DRIVER] callbacks to call before and after buffer
enable/disable
chrdev
[INTERN] associated character device
groups[IIO_MAX_GROUPS + 1]
[INTERN] attribute groups
groupcounter
[INTERN] index of next attribute group
flags
[INTERN] file ops related flags including busy
flag.
debugfs_dentry
[INTERN] device specific debugfs dentry.
cached_reg_addr
[INTERN] cached register address for debugfs reads.
AUTHOR¶
Daniel Baluta <daniel.baluta@intel.com>
Author.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |