'\" t
.\"     Title: rio_mport_get_feature
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: RapidIO driver interface
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "RIO_MPORT_GET_FEATUR" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "RapidIO driver interface"
.\" -----------------------------------------------------------------
.\" * 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"
rio_mport_get_feature \- query for devices\*(Aq extended features
.SH "SYNOPSIS"
.HP \w'u32\ rio_mport_get_feature('u
.BI "u32 rio_mport_get_feature(struct\ rio_mport\ *\ " "port" ", int\ " "local" ", u16\ " "destid" ", u8\ " "hopcount" ", int\ " "ftr" ");"
.SH "ARGUMENTS"
.PP
\fIport\fR
.RS 4
Master port to issue transaction
.RE
.PP
\fIlocal\fR
.RS 4
Indicate a local master port or remote device access
.RE
.PP
\fIdestid\fR
.RS 4
Destination ID of the device
.RE
.PP
\fIhopcount\fR
.RS 4
Number of switch hops to the device
.RE
.PP
\fIftr\fR
.RS 4
Extended feature code
.RE
.SH "DESCRIPTION"
.PP
Tell if a device supports a given RapidIO capability\&. Returns the offset of the requested extended feature block within the device\*(Aqs RIO configuration space or 0 in case the device does not support it\&. Possible values for
\fIftr\fR:
.PP
\fBRIO_EFB_PAR_EP_ID\fR
LP/LVDS EP Devices
.PP
\fBRIO_EFB_PAR_EP_REC_ID\fR
LP/LVDS EP Recovery Devices
.PP
\fBRIO_EFB_PAR_EP_FREE_ID\fR
LP/LVDS EP Free Devices
.PP
\fBRIO_EFB_SER_EP_ID\fR
LP/Serial EP Devices
.PP
\fBRIO_EFB_SER_EP_REC_ID\fR
LP/Serial EP Recovery Devices
.PP
\fBRIO_EFB_SER_EP_FREE_ID\fR
LP/Serial EP Free Devices
.SH "AUTHOR"
.PP
\fBMatt Porter\fR <\&mporter@kernel.crashing.org\&>, <\&mporter@mvista.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br