---
name: "rio_chk_dev_route"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/rio_chk_dev_route"
---

# rio\_chk\_dev\_route(9)

Validate route to the specified device.

## NAME

rio\_chk\_dev\_route - Validate route to the specified device.

## SYNOPSIS

**int rio\_chk\_dev\_route(struct rio\_dev \*** *rdev***, struct rio\_dev \*\*** *nrdev***, int \*** *npnum***);**

## ARGUMENTS

*rdev*

RIO device failed to respond

*nrdev*

Last active device on the route to rdev

*npnum*

nrdev's port number on the route to rdev

## DESCRIPTION

Follows a route to the specified RIO device to determine the last available device (and corresponding RIO port) on the route.

## AUTHOR

**Matt Porter** \<mporter@kernel.crashing.org\>, \<mporter@mvista.com\>

Author.

## COPYRIGHT