IOAudioDevice.h

Includes:

<IOKit/IOService.h>
<IOKit/audio/IOAudioTypes.h>
<IOKit/audio/IOAudioStream.h>
"IOAudioTypes.h"
"IOAudioStream.h"

Overview

Use the links in the table of contents to the left to access the documentation.

Classes

IOAudioDevice: Abstract base class for a single piece of audio hardware. The IOAudioDevice provides the central coordination point for an audio driver.

Typedefs

IOAudioDevicePowerState: Identifies the power state of the audio device

IOAudioDevicePowerState

Identifies the power state of the audio device


typedef enum _IOAudioDevicePowerState { 
    kIOAudioDeviceSleep = 0, // When sleeping 
    kIOAudioDeviceIdle = 1, // When no audio engines running 
    kIOAudioDeviceActive = 2 // audio engines running 
} IOAudioDevicePowerState;

Discussion

A newly created IOAudioDevices defaults to the idle state.

Mac Dev Center Mac OS X Reference Library Drivers, Kernel, & Hardware: Kernel Device Drivers Kernel Framework Reference

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Last Updated: 2010-07-29