Analog Devices VisualDSP++ 5.0 Service Manual page 399

10 DEVICE DRIVER MANAGER
This chapter describes the Analog Devices device driver model. Use the
device driver model to control devices, both internal and external, to Ana-
log Devices processors. This includes on-board peripherals, such as
SPORTs and parallel peripheral interface (PPI), and off-chip connected
devices such as codecs and converters.
This chapter contains the following sections:
• "Device Driver Model Overview" on page 10-3
Provides a general overview of the functionality provided by the
device driver model and a brief description of the overall device
driver architecture.
• "Using the Device Manager" on page 10-6
Describes how applications invoke and interact with the device
driver model including an explanation of the different dataflow
methods supported in the model.
• "Device Manager Design" on page 10-30
Describes the device driver manager API and inner workings of the
device driver manager. Specifically, this section describes how the
device driver manager operates and what it does in response to API
calls and interaction with physical drivers.
• "Physical Driver Design" on page 10-45
Explains how physical drivers can be written to comply with the
model and describes how physical device drivers interact with the
device driver manager.
VisualDSP++ 5.0 Device Drivers and System
Services Manual for Blackfin Processors
10-1