PMC-Sierra PM5358 S/UNI 4x622 Benutzerhandbuch

Proprietary and Confidential to PMC-Sierra, Inc.

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Document ID: PMC-2010419, Issue 1

This section describes the software architecture of the S/UNI-4x622 device driver. This includes a
discussion of the driver’s external interfaces and its main components.

Figure 1 illustrates the external interfaces defined for the S/UNI-4x622 device driver.

The driver Application Programming Interface (API) is a list of high-level functions that can be
invoked by application programmers to configure, control and monitor S/UNI-4x622 devices.
The API functions perform operations that are more meaningful from a system’s perspective. The
API includes functions such as:

 Function Calls

Application Callbacks

Hardware

Interrupts

Service Callbacks

Service Calls

Register

Accesses