Dummy IO

Component Type: Input/Output

Status: Implemented

Overview

CIODummy is a test IO object used for development and validation workflows.

Implementation

CIODummy is a memory-backed in-process IO useful for tests and pipeline prototyping. It allocates a value buffer sized by IO_DUMMY_CFG_DIM (data dimension) and an optional IO_DUMMY_CFG_INITVAL (initial value array applied during init()). Reads return the stored buffer; writes overwrite it under a mutex and update the timestamp when CONFIG_DAWN_IO_TIMESTAMP is enabled. Reads support batch (the same buffer is replicated across requested samples).

Configuration

Kconfig

CONFIG_DAWN_IO_DUMMY: enables the dummy IO implementation.

YAML

ios:
  - id: dummy1
    type: dummy
    dtype: uint32
    rw: true
    config:
      init_value: 123

External Control

ControlIO: not supported.

TriggerIO: not supported.

Doxygen

dawn::CIODummy