'\" t
.\"     Title: rio_lock_device
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: RapidIO driver interface
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "RIO_LOCK_DEVICE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "RapidIO driver interface"
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.SH "NAME"
rio_lock_device \- Acquires host device lock for specified device
.SH "SYNOPSIS"
.HP \w'int\ rio_lock_device('u
.BI "int rio_lock_device(struct\ rio_mport\ *\ " "port" ", u16\ " "destid" ", u8\ " "hopcount" ", int\ " "wait_ms" ");"
.SH "ARGUMENTS"
.PP
\fIport\fR
.RS 4
Master port to send transaction
.RE
.PP
\fIdestid\fR
.RS 4
Destination ID for device/switch
.RE
.PP
\fIhopcount\fR
.RS 4
Hopcount to reach switch
.RE
.PP
\fIwait_ms\fR
.RS 4
Max wait time in msec (0 = no timeout)
.RE
.SH "DESCRIPTION"
.PP
Attepts to acquire host device lock for specified device Returns 0 if device lock acquired or EINVAL if timeout expires\&.
.SH "AUTHOR"
.PP
\fBMatt Porter\fR <\&mporter@kernel.crashing.org\&>, <\&mporter@mvista.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br