A cross-platform user library to access USB devices
Data Fields
libusb_ss_endpoint_companion_descriptor Struct Reference

A structure representing the superspeed endpoint companion descriptor. More...

#include <libusb.h>

Data Fields

uint8_t bLength
 Size of this descriptor (in bytes)
 
uint8_t bDescriptorType
 Descriptor type. More...
 
uint8_t bMaxBurst
 The maximum number of packets the endpoint can send or recieve as part of a burst. More...
 
uint8_t bmAttributes
 In bulk EP: bits 4:0 represents the maximum number of streams the EP supports. More...
 
uint16_t wBytesPerInterval
 The total number of bytes this EP will transfer every service interval. More...
 

Detailed Description

A structure representing the superspeed endpoint companion descriptor.

This descriptor is documented in section 9.6.7 of the USB 3.0 specification. All multiple-byte fields are represented in host-endian format.

Field Documentation

uint8_t libusb_ss_endpoint_companion_descriptor::bDescriptorType

Descriptor type.

Will have value libusb_descriptor_type::LIBUSB_DT_SS_ENDPOINT_COMPANION in this context.

uint8_t libusb_ss_endpoint_companion_descriptor::bMaxBurst

The maximum number of packets the endpoint can send or recieve as part of a burst.

uint8_t libusb_ss_endpoint_companion_descriptor::bmAttributes

In bulk EP: bits 4:0 represents the maximum number of streams the EP supports.

In isochronous EP: bits 1:0 represents the Mult - a zero based value that determines the maximum number of packets within a service interval

uint16_t libusb_ss_endpoint_companion_descriptor::wBytesPerInterval

The total number of bytes this EP will transfer every service interval.

valid only for periodic EPs.


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