USB_Audio_StdDescriptor_Interface_AS_t Struct Reference

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

#include <AudioClassCommon.h>

Data Fields
uint8_t	bLength
uint8_t	bDescriptorType
uint8_t	bDescriptorSubtype
uint8_t	bTerminalLink
uint8_t	bDelay
uint16_t	wFormatTag

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Detailed Description

Type define for an Audio class-specific streaming interface descriptor. This indicates to the host how audio streams within the device are formatted. See the USB Audio specification for more details.

See also:

USB_Audio_Descriptor_Interface_AS_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

uint8_t USB_Audio_StdDescriptor_Interface_AS_t::bDelay

Delay in frames resulting from the complete sample processing from input to output.

uint8_t USB_Audio_StdDescriptor_Interface_AS_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_AS_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_AS_t::bLength

Size of the descriptor, in bytes.

uint8_t USB_Audio_StdDescriptor_Interface_AS_t::bTerminalLink

ID value of the output terminal this descriptor is describing.

uint16_t USB_Audio_StdDescriptor_Interface_AS_t::wFormatTag

Format of the audio stream, see Audio Device Formats specification.

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

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