struct iio_buffer

struct iio_buffer
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Name

struct iio_buffer — general buffer structure

Synopsis

struct iio_buffer {
  int length;
  int bytes_per_datum;
  struct attribute_group * scan_el_attrs;
  long * scan_mask;
  bool scan_timestamp;
  const struct iio_buffer_access_funcs * access;
  struct list_head scan_el_dev_attr_list;
  struct attribute_group scan_el_group;
  wait_queue_head_t pollq;
  bool stufftoread;
  struct list_head demux_list;
  void * demux_bounce;
  struct list_head buffer_list;
  struct kref ref;
  unsigned int watermark;
};

Members

length: [DEVICE] number of datums in buffer
bytes_per_datum: [DEVICE] size of individual datum including timestamp
scan_el_attrs: [DRIVER] control of scan elements if that scan mode control method is used
scan_mask: [INTERN] bitmask used in masking scan mode elements
scan_timestamp: [INTERN] does the scan mode include a timestamp
access: [DRIVER] buffer access functions associated with the implementation.
scan_el_dev_attr_list: [INTERN] list of scan element related attributes.
scan_el_group: [DRIVER] attribute group for those attributes not created from the iio_chan_info array.
pollq: [INTERN] wait queue to allow for polling on the buffer.
stufftoread: [INTERN] flag to indicate new data.
demux_list: [INTERN] list of operations required to demux the scan.
demux_bounce: [INTERN] buffer for doing gather from incoming scan.
buffer_list: [INTERN] entry in the devices list of current buffers.
ref: [INTERN] reference count of the buffer.
watermark: [INTERN] number of datums to wait for poll/read.