'\" t
.\"     Title: pci_cfg_access_lock
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Hardware Interfaces
.\"    Source: Kernel Hackers Manual 4.9.88
.\"  Language: English
.\"
.TH "PCI_CFG_ACCESS_LOCK" "9" "May 2018" "Kernel Hackers Manual 4\&.9\&." "Hardware Interfaces"
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.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