freebsd-dev/share/man/man9/devtoname.9

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.\" Copyright (c) 1999 Chris Costello
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.Dd September 25, 1999
.Os
.Dt DEVTONAME 9
.Sh NAME
.Nm devtoname
.Nd "Converts dev_t data into a string indicating the device name"
.Sh SYNOPSIS
.Fd #include <sys/param.h>
.Fd #include <sys/conf.h>
.Ft const char *
.Fn devtoname "dev_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