.\" Copyright (c) 1999 Chris Costello
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.\" $FreeBSD: src/share/man/man9/devtoname.9,v 1.2.2.4 2001/12/17 11:30:18 ru Exp $
.\"
.Dd February 10, 2009
.Dt DEVTONAME 9
.Os
.Sh NAME
.Nm devtoname
.Nd "converts cdev_t data into a string indicating the device name"
.Sh SYNOPSIS
.In sys/types.h
.In sys/conf.h
.Ft const char *
.Fn devtoname "cdev_t dev"
.Sh DESCRIPTION
The
.Fn devtoname
function returns a pointer to the name of the device passed to it.  The name
is whatever was set to it in
.Fn make_dev .
If no name is associated with
.Va dev ,
a pointer to a string consisting of a
.Dq #
followed by
.Dq Va major Ns / Ns Va minor
as it applies to
.Va dev
is returned.
.Sh HISTORY
The
.Fn devtoname
interface first appeared in
.Fx 4.0