USB PAUD Interface

Detailed Description

Interface for USB PAUD functions.

Summary

The USB PAUD interface provides USB PAUD functionality.

Data Structures
struct	usb_paud_audio_control_t
struct	usb_paud_audio_control_group_t

Macros
#define	USB_PAUD_CUR
	CUR Request.
#define	USB_PAUD_RANGE
	RANGE Request.
#define	USB_PAUD_SET_CUR
	SET_CUR Request.
#define	USB_PAUD_GET_CUR
	GET_CUR Request.
#define	USB_PAUD_GET_MIN
	GET_MIN Request.
#define	USB_PAUD_GET_MAX
	GET_MAX Request.
#define	USB_PAUD_GET_RES
	GET_RES Request.
#define	USB_PAUD_MUTE_CONTROL
	Mute Control in Feature Unit.
#define	USB_PAUD_VOLUME_CONTROL
	Volume Control in Feature Unit.
#define	USB_PAUD_CLOCK_FREQUENCY_CONTROL
	Clock Frequency Control.

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Data Structure Documentation

usb_paud_audio_control_t

struct usb_paud_audio_control_t

Audio Control Settings

Data Fields
union usb_paud_audio_control_t	__unnamed__
uint32_t	sam_freq	Sampling Frequency.
uint32_t	fu_id	Feature Unit ID.
uint16_t	mute	Mute Control.
int16_t	volume_min	Minimum (Attribute of Volume Control)
int16_t	volume_max	Maximum (Attribute of Volume Control)
uint16_t	volume_res	Resolution (Attribute of Volume Control)
int16_t	volume	Volume Control.

usb_paud_audio_control_group_t

struct usb_paud_audio_control_group_t

Audio Control Setting Group

Data Fields
uint32_t	controls_nb	Number of Audio Control Group.
usb_paud_audio_control_t *	p_controls	Pointer for access to Audio Control Settings.