'\" t
.\"     Title: parport_wait_event
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Parallel Port Devices
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "PARPORT_WAIT_EVENT" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Parallel Port Devices"
.\" -----------------------------------------------------------------
.\" * 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"
parport_wait_event \- wait for an event on a parallel port
.SH "SYNOPSIS"
.HP \w'int\ parport_wait_event('u
.BI "int parport_wait_event(struct\ parport\ *\ " "port" ", signed\ long\ " "timeout" ");"
.SH "ARGUMENTS"
.PP
\fIport\fR
.RS 4
port to wait on
.RE
.PP
\fItimeout\fR
.RS 4
time to wait (in jiffies)
.RE
.SH "DESCRIPTION"
.PP
This function waits for up to
\fItimeout\fR
jiffies for an interrupt to occur on a parallel port\&. If the port timeout is set to zero, it returns immediately\&.
.PP
If an interrupt occurs before the timeout period elapses, this function returns zero immediately\&. If it times out, it returns one\&. An error code less than zero indicates an error (most likely a pending signal), and the calling code should finish what it\*(Aqs doing as soon as it can\&.
.SH "COPYRIGHT"
.br