A structure representing the standard USB configuration descriptor. More...

#include <libusb.h>

Data Fields
uint8_t	bLength
	Size of this descriptor (in bytes)
uint8_t	bDescriptorType
	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
	Identifier value for this configuration.
uint8_t	iConfiguration
	Index of string descriptor describing this configuration.
uint8_t	bmAttributes
	Configuration characteristics.
uint8_t	MaxPower
	Maximum power consumption of the USB device from this bus in this configuration when the device is fully opreation.
struct libusb_interface *	interface
	Array of interfaces supported by this configuration.
const unsigned char *	extra
	Extra descriptors.
int	extra_length
	Length of the extra descriptors, in bytes.

Detailed Description

A structure representing the standard USB configuration descriptor.

This descriptor is documented in section 9.6.3 of the USB 2.0 specification. All multiple-byte fields are represented in host-endian format.

Field Documentation

uint8_t libusb_config_descriptor::bDescriptorType

Descriptor type.

Will have value libusb_descriptor_type::LIBUSB_DT_CONFIG LIBUSB_DT_CONFIG in this context.

uint8_t libusb_config_descriptor::MaxPower

Maximum power consumption of the USB device from this bus in this configuration when the device is fully opreation.

Expressed in units of 2 mA.

struct libusb_interface* libusb_config_descriptor::interface

Array of interfaces supported by this configuration.

The length of this array is determined by the bNumInterfaces field.

const unsigned char* libusb_config_descriptor::extra

Extra descriptors.

If libusb encounters unknown configuration descriptors, it will store them here, should you wish to parse them.

int libusb_config_descriptor::extra_length

Length of the extra descriptors, in bytes.

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