USB_Descriptor_DeviceQualifier_t Struct Reference

Standard USB Device Qualifier Descriptor (LUFA naming conventions). More...

Data Fields
USB_Descriptor_Header_t	Header
u16	USBSpecification
u8	Class
u8	SubClass
u8	Protocol
u8	Endpoint0Size
u8	NumberOfConfigurations
u8	Reserved

Detailed Description

Standard USB Device Qualifier Descriptor (LUFA naming conventions).

Type define for a standard Device Qualifier Descriptor. This structure uses LUFA-specific element names to make each element's purpose clearer.

See also

USB_StdDescriptor_DeviceQualifier_t for the version of this type with standard element names.

Field Documentation

Header

USB_Descriptor_Header_t USB_Descriptor_DeviceQualifier_t::Header

Descriptor header, including type and size.

USBSpecification

u16 USB_Descriptor_DeviceQualifier_t::USBSpecification

BCD of the supported USB specification.

Class

u8 USB_Descriptor_DeviceQualifier_t::Class

USB device class.

SubClass

u8 USB_Descriptor_DeviceQualifier_t::SubClass

USB device subclass.

Protocol

u8 USB_Descriptor_DeviceQualifier_t::Protocol

USB device protocol.

Endpoint0Size

u8 USB_Descriptor_DeviceQualifier_t::Endpoint0Size

Size of the control (address 0) endpoint's bank in bytes.

NumberOfConfigurations

u8 USB_Descriptor_DeviceQualifier_t::NumberOfConfigurations

Total number of configurations supported by the device.

Reserved

u8 USB_Descriptor_DeviceQualifier_t::Reserved

Reserved for future use, must be 0.