UsbEndpointDescriptorView Struct Reference

Backend-agnostic mirror of tusb_desc_endpoint_t (USB 2.0 spec Table 9-13). wMaxPacketSize is kept in its raw little-endian form (bits 10..0 = size, bits 12..11 = high-speed additional transactions per microframe) so it round-trips bit-for-bit back into a real endpoint descriptor for backends that need one; use packetSize() for the masked value the UAC2 driver's own sizing logic uses (this mirrors TinyUSB's tu_edpt_packet_size(), which also only masks the low 11 bits and does not apply the HS multiplier). More...

#include <USBAudioBackend.h>

Public Member Functions
UsbDir	direction () const
uint16_t	packetSize () const

Public Attributes
uint8_t	bEndpointAddress = 0
uint8_t	bInterval = 0
uint8_t	sync = 0
uint8_t	usage = 0
uint16_t	wMaxPacketSize = 0
UsbXferType	xferType = UsbXferType::Control

Detailed Description

Backend-agnostic mirror of tusb_desc_endpoint_t (USB 2.0 spec Table 9-13). wMaxPacketSize is kept in its raw little-endian form (bits 10..0 = size, bits 12..11 = high-speed additional transactions per microframe) so it round-trips bit-for-bit back into a real endpoint descriptor for backends that need one; use packetSize() for the masked value the UAC2 driver's own sizing logic uses (this mirrors TinyUSB's tu_edpt_packet_size(), which also only masks the low 11 bits and does not apply the HS multiplier).

Member Function Documentation

direction()

UsbDir direction ( ) const

inline

packetSize()

uint16_t packetSize ( ) const

inline

Member Data Documentation

bEndpointAddress

uint8_t bEndpointAddress = 0

bInterval

uint8_t bInterval = 0

sync

uint8_t sync = 0

usage

uint8_t usage = 0

wMaxPacketSize

uint16_t wMaxPacketSize = 0

xferType

UsbXferType xferType = UsbXferType::Control

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

• src/AudioTools/Communication/USB/USBAudioBackend.h