ehci_transfer_descriptor Struct Reference

A transfer descriptor. More...

#include <ehci.h>

Data Fields
uint32_t	next
	Next transfer descriptor. More...
uint32_t	alt
	Alternate next transfer descriptor. More...
uint8_t	status
	Status. More...
uint8_t	flags
	Flags. More...
uint16_t	len
	Transfer length. More...
uint32_t	low [5]
	Buffer pointers (low 32 bits) More...
uint32_t	high [5]
	Extended buffer pointers (high 32 bits) More...
uint8_t	reserved [12]
	Reserved. More...

Detailed Description

A transfer descriptor.

Definition at line 229 of file ehci.h.

Field Documentation

next

uint32_t ehci_transfer_descriptor::next

Next transfer descriptor.

Definition at line 231 of file ehci.h.

Referenced by ehci_bus_open(), ehci_endpoint_reset(), and ehci_ring_alloc().

alt

uint32_t ehci_transfer_descriptor::alt

Alternate next transfer descriptor.

Definition at line 233 of file ehci.h.

Referenced by ehci_ring_alloc().

status

uint8_t ehci_transfer_descriptor::status

Status.

Definition at line 235 of file ehci.h.

Referenced by ehci_bus_open(), ehci_dequeue(), ehci_endpoint_poll(), ehci_endpoint_reset(), and ehci_enqueue().

flags

uint8_t ehci_transfer_descriptor::flags

Flags.

Definition at line 237 of file ehci.h.

Referenced by ehci_enqueue().

len

uint16_t ehci_transfer_descriptor::len

Transfer length.

Definition at line 239 of file ehci.h.

Referenced by ehci_endpoint_poll(), ehci_endpoint_reset(), and ehci_enqueue().

low

uint32_t ehci_transfer_descriptor::low[5]

Buffer pointers (low 32 bits)

Definition at line 241 of file ehci.h.

Referenced by ehci_enqueue().

high

uint32_t ehci_transfer_descriptor::high[5]

Extended buffer pointers (high 32 bits)

Definition at line 243 of file ehci.h.

Referenced by ehci_enqueue().

reserved

uint8_t ehci_transfer_descriptor::reserved[12]

Reserved.

Definition at line 245 of file ehci.h.

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

• drivers/usb/ehci.h