'\" t
.\"     Title: parport_claim
.\"    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: Parallel Port Devices
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "PARPORT_CLAIM" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Parallel Port Devices"
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.SH "NAME"
parport_claim \- claim access to a parallel port device
.SH "SYNOPSIS"
.HP \w'int\ parport_claim('u
.BI "int parport_claim(struct\ pardevice\ *\ " "dev" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
pointer to structure representing a device on the port
.RE
.SH "DESCRIPTION"
.PP
This function will not block and so can be used from interrupt context\&. If
\fBparport_claim\fR
succeeds in claiming access to the port it returns zero and the port is available to use\&. It may fail (returning non\-zero) if the port is in use by another driver and that driver is not willing to relinquish control of the port\&.
.SH "COPYRIGHT"
.br