'\" t
.\"     Title: pci_cfg_access_lock
.\"    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_CFG_ACCESS_LOCK" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Hardware Interfaces"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
pci_cfg_access_lock \- Lock PCI config reads/writes
.SH "SYNOPSIS"
.HP \w'void\ pci_cfg_access_lock('u
.BI "void pci_cfg_access_lock(struct\ pci_dev\ *\ " "dev" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
pci device struct
.RE
.SH "DESCRIPTION"
.PP
When access is locked, any userspace reads or writes to config space and concurrent lock requests will sleep until access is allowed via pci_cfg_access_unlocked again\&.
.SH "COPYRIGHT"
.br