USB_Audio_StdDescriptor_Interface_AC_t Struct Reference

Audio class-specific Interface Descriptor (USB-IF naming conventions). More...

#include <AudioClassCommon.h>

Data Fields
uint8_t	bLength
uint8_t	bDescriptorType
uint8_t	bDescriptorSubtype
uint16_t	bcdADC
uint16_t	wTotalLength
uint8_t	bInCollection
uint8_t	bInterfaceNumbers

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Detailed Description

Type define for an Audio class-specific interface descriptor. This follows a regular interface descriptor to supply extra information about the audio device's layout to the host. See the USB Audio specification for more details.

See also:

USB_Audio_Descriptor_Interface_AC_t for the version of this type with non-standard LUFA specific element names.

Note:

Regardless of CPU architecture, these values should be stored as little endian.

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Field Documentation

uint16_t USB_Audio_StdDescriptor_Interface_AC_t::bcdADC

Binary coded decimal value, indicating the supported Audio Class specification version.

uint8_t USB_Audio_StdDescriptor_Interface_AC_t::bDescriptorSubtype

Sub type value used to distinguish between audio class-specific descriptors, a value from the Audio_CSInterface_AS_SubTypes_t enum.

uint8_t USB_Audio_StdDescriptor_Interface_AC_t::bDescriptorType

Type of the descriptor, either a value in USB_DescriptorTypes_t or a value given by the specific class.

uint8_t USB_Audio_StdDescriptor_Interface_AC_t::bInCollection

Total number of Audio Streaming interfaces linked to this Audio Control interface (must be 1).

uint8_t USB_Audio_StdDescriptor_Interface_AC_t::bInterfaceNumbers

Interface number of the associated Audio Streaming interface.

uint8_t USB_Audio_StdDescriptor_Interface_AC_t::bLength

Size of the descriptor, in bytes.

uint16_t USB_Audio_StdDescriptor_Interface_AC_t::wTotalLength

Total length of the Audio class-specific descriptors, including this descriptor.

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The documentation for this struct was generated from the following file:

• Drivers/USB/Class/Common/AudioClassCommon.h