USB_Audio_Descriptor_InputTerminal_t Struct Reference

Audio class-specific Input Terminal Descriptor (LUFA naming conventions). More...

#include <AudioClassCommon.h>

Data Fields
USB_Descriptor_Header_t	Header
uint8_t	Subtype
uint8_t	TerminalID
uint16_t	TerminalType
uint8_t	AssociatedOutputTerminal
uint8_t	TotalChannels
uint16_t	ChannelConfig
uint8_t	ChannelStrIndex
uint8_t	TerminalStrIndex

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Detailed Description

Type define for an Audio class-specific input terminal descriptor. This indicates to the host that the device contains an input audio source, either from a physical terminal on the device, or a logical terminal (for example, a USB endpoint). See the USB Audio specification for more details.

See also:

USB_Audio_StdDescriptor_InputTerminal_t for the version of this type with standard 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_Descriptor_InputTerminal_t::AssociatedOutputTerminal

ID of associated output terminal, for physically grouped terminals such as the speaker and microphone of a phone handset.

uint16_t USB_Audio_Descriptor_InputTerminal_t::ChannelConfig

CHANNEL_* masks indicating what channel layout is supported by this terminal.

uint8_t USB_Audio_Descriptor_InputTerminal_t::ChannelStrIndex

Index of a string descriptor describing this channel within the device.

USB_Descriptor_Header_t USB_Audio_Descriptor_InputTerminal_t::Header

Regular descriptor header containing the descriptor's type and length.

uint8_t USB_Audio_Descriptor_InputTerminal_t::Subtype

Sub type value used to distinguish between audio class-specific descriptors, must be AUDIO_DSUBTYPE_CSInterface_InputTerminal.

uint8_t USB_Audio_Descriptor_InputTerminal_t::TerminalID

ID value of this terminal unit - must be a unique value within the device.

uint8_t USB_Audio_Descriptor_InputTerminal_t::TerminalStrIndex

Index of a string descriptor describing this descriptor within the device.

uint16_t USB_Audio_Descriptor_InputTerminal_t::TerminalType

Type of terminal, a TERMINAL_* mask.

uint8_t USB_Audio_Descriptor_InputTerminal_t::TotalChannels

Total number of separate audio channels within this interface (right, left, etc.)

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

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