JavaScript is required to for searching.
Skip Navigation Links
Exit Print View
Writing Device Drivers
search filter icon
search icon

Document Information


Part I Designing Device Drivers for the Solaris Platform

1.  Overview of Solaris Device Drivers

2.  Solaris Kernel and Device Tree

3.  Multithreading

4.  Properties

5.  Managing Events and Queueing Tasks

6.  Driver Autoconfiguration

7.  Device Access: Programmed I/O

8.  Interrupt Handlers

Interrupt Handler Overview

Device Interrupts

High-Level Interrupts

Legacy Interrupts

Standard and Extended Message-Signaled Interrupts

MSI Interrupts

MSI-X Interrupts

Software Interrupts

DDI Interrupt Functions

Interrupt Capability Functions

Interrupt Initialization and Destruction Functions

Priority Management Functions

Soft Interrupt Functions

Interrupt Function Examples

Registering Interrupts

Registering Legacy Interrupts

Registering MSI Interrupts

Interrupt Resource Management

The Interrupt Resource Management Feature

Callback Interfaces

Register a Callback Handler Function

Unregister a Callback Handler Function

Callback Handler Function

Interrupt Request Interfaces

Allocate an Interrupt

Modify Number of Interrupt Vectors Requested

Interrupt Usage and Flexibility

Example Implementation of Interrupt Resource Management

Interrupt Handler Functionality

Handling High-Level Interrupts

High-Level Mutexes

High-Level Interrupt Handling Example

9.  Direct Memory Access (DMA)

10.  Mapping Device and Kernel Memory

11.  Device Context Management

12.  Power Management

13.  Hardening Solaris Drivers

14.  Layered Driver Interface (LDI)

Part II Designing Specific Kinds of Device Drivers

15.  Drivers for Character Devices

16.  Drivers for Block Devices

17.  SCSI Target Drivers

18.  SCSI Host Bus Adapter Drivers

19.  Drivers for Network Devices

20.  USB Drivers

Part III Building a Device Driver

21.  Compiling, Loading, Packaging, and Testing Drivers

22.  Debugging, Testing, and Tuning Device Drivers

23.  Recommended Coding Practices

Part IV Appendixes

A.  Hardware Overview

B.  Summary of Solaris DDI/DKI Services

C.  Making a Device Driver 64-Bit Ready

D.  Console Frame Buffer Drivers


Interrupt Handler Overview

An interrupt is a hardware signal from a device to a CPU. An interrupt tells the CPU that the device needs attention and that the CPU should stop any current activity and respond to the device. If the CPU is not performing a task that has higher priority than the priority of the interrupt, then the CPU suspends the current thread. The CPU then invokes the interrupt handler for the device that sent the interrupt signal. The job of the interrupt handler is to service the device and stop the device from interrupting. When the interrupt handler returns, the CPU resumes the work it was doing before the interrupt occurred.

The Solaris DDI/DKI provides interfaces for performing the following tasks: