USB device qualifier descriptor. More...

#include <usb_std.h>

Data Fields
uint8_t	bLength
	Size of the descriptor, in bytes.

uint8_t	bDescriptorType
	Qualifier descriptor.

uint16_t	bcdUSB
	BCD of the supported USB specification.

uint8_t	bDeviceClass
	USB device class.

uint8_t	bDeviceSubClass
	USB device subclass.

uint8_t	bDeviceProtocol
	USB device protocol.

uint8_t	bMaxPacketSize0
	Size of the control endpoint's bank in bytes.

uint8_t	bNumConfigurations
	Total number of configurations supported by the device.

uint8_t	bReserved
	Reserved for future use, must be 0.

Detailed Description

USB device qualifier descriptor.

The device_qualifier descriptor describes information about a high-speed capable device that would change if the device were operating at the other speed. For example, if the device is currently operating at full-speed, the device qualifier returns information about how it would operate at high-speed and vice-versa.

Definition at line 360 of file usb_std.h.

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

usb_std.h

Data Fields

Detailed Description