ACX_AUDIOMODULE_CALLBACKS structure (acxelements.h)

Article
02/22/2024

The ACX_AUDIOMODULE_CALLBACKS structure identifies the driver callbacks for ACX audio module operations.

Syntax

typedef struct _ACX_AUDIOMODULE_CALLBACKS {
  ULONG                              Size;
  PFN_ACX_AUDIOMODULE_PROCESSCOMMAND EvtAcxAudioModuleProcessCommand;
} ACX_AUDIOMODULE_CALLBACKS, *PACX_AUDIOMODULE_CALLBACKS;

Members

Size

The length, in bytes, of this structure.

EvtAcxAudioModuleProcessCommand

The ACX_AUDIOMODULE_PROCESSCOMMAND callback.

Remarks

Example

Example usage is shown below.

    ACX_AUDIOMODULE_CALLBACKS       audioModuleCallbacks;   
    ACX_AUDIOMODULE_CONFIG          audioModuleCfg;
    ACXAUDIOMODULE                  audioModuleElement;

    // Now add audio modules to the circuit
    // module 0

    ACX_AUDIOMODULE_CALLBACKS_INIT(&audioModuleCallbacks);
    audioModuleCallbacks.EvtAcxAudioModuleProcessCommand = CodecR_EvtProcessCommand0;

    ACX_AUDIOMODULE_CONFIG_INIT(&audioModuleCfg);
    audioModuleCfg.Name = &AudioModule0Id;
    audioModuleCfg.Descriptor.ClassId = AudioModule0Id;
    audioModuleCfg.Descriptor.InstanceId = AUDIOMODULE_INSTANCE_ID(0,0);
    audioModuleCfg.Descriptor.VersionMajor = AUDIOMODULE0_MAJOR;
    audioModuleCfg.Descriptor.VersionMinor = AUDIOMODULE0_MINOR;
    wcsncpy_s(audioModuleCfg.Descriptor.Name,
                ACX_AUDIOMODULE_MAX_NAME_CCH_SIZE,
                AUDIOMODULE0DESCRIPTION,
                wcslen(AUDIOMODULE0DESCRIPTION));
    audioModuleCfg.Callbacks = &audioModuleCallbacks;

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

Requirements

Requirement	Value
Header	acxelements.h

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