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USB_CDC_Descriptor_FunctionalUnion_t Struct Reference
Common Class Definitions

CDC class-specific Functional Union Descriptor (LUFA naming conventions). More...

`#include <CDCClassCommon.h>`

## Data Fields
USB_Descriptor_Header_t | Header
uint8_t | MasterInterfaceNumber
uint8_t | SlaveInterfaceNumber
uint8_t | Subtype

## Detailed Description

Type define for a CDC class-specific functional Union descriptor. This indicates to the host that specific CDC control and data interfaces are related. See the CDC class specification for more details.

See also
  USB_CDC_StdDescriptor_FunctionalUnion_t for the version of this type with standard element names.

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

## Field Documentation

USB_Descriptor_Header_t USB_CDC_Descriptor_FunctionalUnion_t::Header

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

uint8_t USB_CDC_Descriptor_FunctionalUnion_t::MasterInterfaceNumber

Interface number of the CDC Control interface.

uint8_t USB_CDC_Descriptor_FunctionalUnion_t::SlaveInterfaceNumber

Interface number of the CDC Data interface.

uint8_t USB_CDC_Descriptor_FunctionalUnion_t::Subtype

Sub type value used to distinguish between CDC class-specific descriptors, must be CDC_DSUBTYPE_CSInterface_Union.

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

- Drivers/USB/Class/Common/CDCClassCommon.h