udc_buf_info Struct Reference

#include <udc.h>

Data Fields
uint8_t	ep
unsigned int	setup: 1
unsigned int	data: 1
unsigned int	status: 1
unsigned int	zlp: 1
unsigned int	claimed: 1
unsigned int	queued: 1
void *	owner
int	err

Detailed Description

UDC endpoint buffer info

This structure is mandatory for all UDC request. It contains the meta data about the request and is stored in user_data array of net_buf structure for each request.

Field Documentation

claimed

unsigned int udc_buf_info::claimed

Flag marks request buffer claimed by the controller (TBD)

data

unsigned int udc_buf_info::data

Flag marks data stage of setup transfer

ep

uint8_t udc_buf_info::ep

Endpoint to which request is associated

err

int udc_buf_info::err

Transfer result, 0 on success, other values on error

owner

void* udc_buf_info::owner

Transfer owner (usually pointer to a class instance)

queued

unsigned int udc_buf_info::queued

Flag marks request buffer is queued (TBD)

setup

unsigned int udc_buf_info::setup

Flag marks setup transfer

status

unsigned int udc_buf_info::status

Flag marks status stage of setup transfer

zlp

unsigned int udc_buf_info::zlp

Flag marks ZLP at the end of a transfer

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

• zephyr/drivers/usb/udc.h