AUDIO_CTL

Collaboration diagram for AUDIO_CTL:

Macros
#define	_AUDIO_CTL(a)   (RT_DEVICE_CTRL_BASE(Sound) + a)
#define	AUDIO_CTL_GETCAPS   _AUDIO_CTL(1)
#define	AUDIO_CTL_CONFIGURE   _AUDIO_CTL(2)
#define	AUDIO_CTL_START   _AUDIO_CTL(3)
#define	AUDIO_CTL_STOP   _AUDIO_CTL(4)
#define	AUDIO_CTL_GETBUFFERINFO   _AUDIO_CTL(5)

Detailed Description

Control audio device.

Macro Definition Documentation

_AUDIO_CTL

#define _AUDIO_CTL

(

a

)

(RT_DEVICE_CTRL_BASE(Sound) + a)

Generate audio command code with a.

Parameters

[in]

a

offset of command.

Returns

audio device control command code.

AUDIO_CTL_GETCAPS

#define AUDIO_CTL_GETCAPS   _AUDIO_CTL(1)

Get audio device capabilities

AUDIO_CTL_CONFIGURE

#define AUDIO_CTL_CONFIGURE   _AUDIO_CTL(2)

Get audio device configuration

AUDIO_CTL_START

#define AUDIO_CTL_START   _AUDIO_CTL(3)

Start audio device

AUDIO_CTL_STOP

#define AUDIO_CTL_STOP   _AUDIO_CTL(4)

Stop audio device

AUDIO_CTL_GETBUFFERINFO

#define AUDIO_CTL_GETBUFFERINFO   _AUDIO_CTL(5)

Get audio device buffer information