'\" t
.\"     Title: pci_mmap_legacy_io
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Hardware Interfaces
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "PCI_MMAP_LEGACY_IO" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Hardware Interfaces"
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.SH "NAME"
pci_mmap_legacy_io \- map legacy PCI IO into user memory space
.SH "SYNOPSIS"
.HP \w'int\ pci_mmap_legacy_io('u
.BI "int pci_mmap_legacy_io(struct\ file\ *\ " "filp" ", struct\ kobject\ *\ " "kobj" ", struct\ bin_attribute\ *\ " "attr" ", struct\ vm_area_struct\ *\ " "vma" ");"
.SH "ARGUMENTS"
.PP
\fIfilp\fR
.RS 4
open sysfs file
.RE
.PP
\fIkobj\fR
.RS 4
kobject corresponding to device to be mapped
.RE
.PP
\fIattr\fR
.RS 4
struct bin_attribute for this file
.RE
.PP
\fIvma\fR
.RS 4
struct vm_area_struct passed to mmap
.RE
.SH "DESCRIPTION"
.PP
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\*(Aqt supported
.SH "COPYRIGHT"
.br