ehci_ring Struct Reference

A transfer descriptor ring. More...

#include <ehci.h>

Data Fields
unsigned int	prod
	Producer counter. More...
unsigned int	cons
	Consumer counter. More...
size_t	residual
	Residual untransferred data. More...
struct io_buffer **	iobuf
	I/O buffers. More...
struct ehci_queue_head *	head
	Queue head. More...
struct ehci_transfer_descriptor *	desc
	Transfer descriptors. More...

Detailed Description

A transfer descriptor ring.

Definition at line 369 of file ehci.h.

Field Documentation

prod

unsigned int ehci_ring::prod

Producer counter.

Definition at line 371 of file ehci.h.

Referenced by ehci_enqueue(), and ehci_ring_fill().

cons

unsigned int ehci_ring::cons

Consumer counter.

Definition at line 373 of file ehci.h.

Referenced by ehci_dequeue(), ehci_endpoint_poll(), ehci_endpoint_reset(), and ehci_ring_fill().

residual

size_t ehci_ring::residual

Residual untransferred data.

Definition at line 376 of file ehci.h.

Referenced by ehci_endpoint_poll(), and ehci_endpoint_reset().

iobuf

struct io_buffer** ehci_ring::iobuf

I/O buffers.

Definition at line 379 of file ehci.h.

Referenced by ehci_dequeue(), ehci_enqueue(), ehci_ring_alloc(), and ehci_ring_free().

head

struct ehci_queue_head* ehci_ring::head

Queue head.

Definition at line 382 of file ehci.h.

Referenced by ehci_async_schedule(), ehci_endpoint_reset(), ehci_endpoint_update(), ehci_periodic_schedule(), ehci_ring_alloc(), and ehci_ring_free().

desc

struct ehci_transfer_descriptor* ehci_ring::desc

Transfer descriptors.

Definition at line 384 of file ehci.h.

Referenced by ehci_dequeue(), ehci_endpoint_poll(), ehci_endpoint_reset(), ehci_enqueue(), ehci_ring_alloc(), and ehci_ring_free().

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

• drivers/usb/ehci.h