USB Configuration Descriptor.

#include <em_usb.h>

Data Fields
uint8_t	bLength
	Size of this descriptor in bytes

uint8_t	bDescriptorType
	Constant CONFIGURATION Descriptor Type

uint16_t	wTotalLength
	Total length of data returned for this configuration.

uint8_t	bNumInterfaces
	Number of interfaces supported by this configuration

uint8_t	bConfigurationValue
	Value to use as an argument to the SetConfiguration request to select this configuration.

uint8_t	iConfiguration
	Index of string descriptor describing this configuration.

uint8_t	bmAttributes
	Configuration characteristics.

uint8_t	bMaxPower
	Maximum power consumption of the USB device, unit is 2mA per LSB

USB Configuration Descriptor.

Field Documentation

◆ bLength

uint8_t USB_ConfigurationDescriptor_TypeDef::bLength

Size of this descriptor in bytes

uint8_t USB_ConfigurationDescriptor_TypeDef::bDescriptorType

Constant CONFIGURATION Descriptor Type

uint16_t USB_ConfigurationDescriptor_TypeDef::wTotalLength

Total length of data returned for this configuration.

Includes the combined length of all descriptors (configuration, interface, endpoint, and class- or vendor-specific) returned for this configuration.

uint8_t USB_ConfigurationDescriptor_TypeDef::bNumInterfaces

Number of interfaces supported by this configuration

uint8_t USB_ConfigurationDescriptor_TypeDef::bConfigurationValue

Value to use as an argument to the SetConfiguration request to select this configuration.

uint8_t USB_ConfigurationDescriptor_TypeDef::iConfiguration

Index of string descriptor describing this configuration.

uint8_t USB_ConfigurationDescriptor_TypeDef::bmAttributes

Configuration characteristics.

D7: Reserved (set to one)
D6: Self-powered
D5: Remote Wakeup
D4...0: Reserved (reset to zero)

uint8_t USB_ConfigurationDescriptor_TypeDef::bMaxPower

Maximum power consumption of the USB device, unit is 2mA per LSB