pci_mmap_legacy_io

Langue: en

Version: October 2010 (fedora - 01/12/10)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

pci_mmap_legacy_io - map legacy PCI IO into user memory space

SYNOPSIS

int pci_mmap_legacy_io(struct file * filp, struct kobject * kobj, struct bin_attribute * attr, struct vm_area_struct * vma);

ARGUMENTS

filp

open sysfs file

kobj

kobject corresponding to device to be mapped

attr

struct bin_attribute for this file

vma

struct vm_area_struct passed to mmap

DESCRIPTION

Uses an arch specific callback, pci_mmap_legacy_io_page_range, to mmap legacy IO space (first meg of bus space) into application virtual memory space. Returns -ENOSYS if the operation isn't supported