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Device Driver Tutorial     Oracle Solaris 11 Express 11/10
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Document Information

Preface

1.  Introduction to Device Drivers

2.  Template Driver Example

Overview of the Template Driver Example

Writing the Template Driver

Writing the Loadable Module Configuration Entry Points

Declaring the Loadable Module Configuration Entry Points

Defining the Module Initialization Entry Point

Defining the Module Information Entry Point

Defining the Module Unload Entry Point

Including Loadable Module Configuration Header Files

Writing the Autoconfiguration Entry Points

Declaring the Autoconfiguration Entry Points

Defining the Device Attach Entry Point

Defining the Device Detach Entry Point

Defining the Get Driver Information Entry Point

Defining the Report Driver Property Information Entry Point

Including Autoconfiguration Header Files

Writing the User Context Entry Points

Declaring the User Context Entry Points

Defining the Open Device Entry Point

Defining the Close Device Entry Point

Defining the Read Device Entry Point

Defining the Write Device Entry Point

Including User Context Header Files

Writing the Driver Data Structures

Defining the Character and Block Operations Structure

Defining the Device Operations Structure

Defining the Module Linkage Structures

Including Data Structures Header Files

Writing the Device Configuration File

Building and Installing the Template Driver

Testing the Template Driver

Adding the Template Driver

Reading and Writing the Device

Removing the Template Driver

Complete Template Driver Source

3.  Reading and Writing Data in Kernel Memory

4.  Tips for Developing Device Drivers

Index

Writing the Device Configuration File

This driver requires a configuration file. The minimum information that a configuration file must contain is the name of the device node and the name or type of the device's parent. In this simple example, the node name of the device is the same as the file name of the driver. Create a file named dummy.conf in your working directory. Put the following single line of information into dummy.conf:

name="dummy" parent="pseudo";