usb_endpoint_host_operations Struct Reference

USB endpoint host controller operations. More...

#include <usb.h>

Data Fields
int(*	open )(struct usb_endpoint *ep)
	Open endpoint. More...
void(*	close )(struct usb_endpoint *ep)
	Close endpoint. More...
int(*	reset )(struct usb_endpoint *ep)
	Reset endpoint. More...
int(*	mtu )(struct usb_endpoint *ep)
	Update MTU. More...
int(*	message )(struct usb_endpoint *ep, struct io_buffer *iobuf)
	Enqueue message transfer. More...
int(*	stream )(struct usb_endpoint *ep, struct io_buffer *iobuf, int zlp)
	Enqueue stream transfer. More...

Detailed Description

USB endpoint host controller operations.

Definition at line 429 of file usb.h.

Field Documentation

open

int( * usb_endpoint_host_operations::open) (struct usb_endpoint *ep)

Open endpoint.

Parameters

ep	USB endpoint

Return values

rc	Return status code

Definition at line 435 of file usb.h.

Referenced by usb_endpoint_open().

close

void( * usb_endpoint_host_operations::close) (struct usb_endpoint *ep)

Close endpoint.

Parameters

ep	USB endpoint

Definition at line 440 of file usb.h.

Referenced by usb_endpoint_close(), and usb_endpoint_open().

reset

int( * usb_endpoint_host_operations::reset) (struct usb_endpoint *ep)

Reset endpoint.

Parameters

ep	USB endpoint

Return values

rc	Return status code

Definition at line 447 of file usb.h.

Referenced by usb_endpoint_reset().

mtu

int( * usb_endpoint_host_operations::mtu) (struct usb_endpoint *ep)

Update MTU.

Parameters

ep	USB endpoint

Return values

rc	Return status code

Definition at line 453 of file usb.h.

Referenced by usb_endpoint_mtu().

message

int( * usb_endpoint_host_operations::message) (struct usb_endpoint *ep, struct io_buffer *iobuf)

Enqueue message transfer.

Parameters

ep	USB endpoint
iobuf	I/O buffer

Return values

rc	Return status code

Definition at line 460 of file usb.h.

Referenced by usb_message().

stream

int( * usb_endpoint_host_operations::stream) (struct usb_endpoint *ep, struct io_buffer *iobuf, int zlp)

Enqueue stream transfer.

Parameters

ep	USB endpoint
iobuf	I/O buffer
zlp	Append a zero-length packet

Return values

rc	Return status code

Definition at line 469 of file usb.h.

Referenced by usb_stream().

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

• include/ipxe/usb.h