'\" t
.\"     Title: rio_sport_is_active
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: June 2017
.\"    Manual: Internals
.\"    Source: Kernel Hackers Manual 4.11.3
.\"  Language: English
.\"
.TH "RIO_SPORT_IS_ACTIVE" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "Internals"
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.SH "NAME"
rio_sport_is_active \- Tests if a switch port has an active connection\&.
.SH "SYNOPSIS"
.HP \w'int\ rio_sport_is_active('u
.BI "int rio_sport_is_active(struct\ rio_dev\ *\ " "rdev" ", int\ " "sp" ");"
.SH "ARGUMENTS"
.PP
\fIstruct rio_dev * rdev\fR
.RS 4
RapidIO device object
.RE
.PP
\fIint sp\fR
.RS 4
Switch port number
.RE
.SH "DESCRIPTION"
.PP
Reads the port error status CSR for a particular switch port to determine if the port has an active link\&. Returns
\fBRIO_PORT_N_ERR_STS_PORT_OK\fR
if the port is active or
\fB0\fR
if it is inactive\&.
.SH "AUTHOR"
.PP
\fBMatt Porter\fR <\&mporter@kernel.crashing.org\&>, <\&mporter@mvista.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br