79 lines
2.7 KiB
Groff
79 lines
2.7 KiB
Groff
.\" -*- nroff -*-
|
|
.\"
|
|
.\" Copyright (c) 2001 M. Warner Losh
|
|
.\"
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This program is free software.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd March 1, 2001
|
|
.Dt RESOURCE_INT_VALUE 9
|
|
.Os FreeBSD
|
|
.Sh NAME
|
|
.Nm resource_int_value , resource_long_value , resource_string_value
|
|
.Nd get a value from the hints mechanism
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/bus.h>
|
|
.Ft int
|
|
.Fn resource_int_value "const char *name" "int unit" "const char *resname" "int *result"
|
|
.Ft int
|
|
.Fn resource_long_value "const char *name" "int unit" "const char *resname" "long *result"
|
|
.Ft int
|
|
.Fn resource_string_value "const char *name" "int unit" "const char *resname" "char **result"
|
|
.Sh DESCRIPTION
|
|
These functions fetch a value from the
|
|
.Dq hints
|
|
mechanism.
|
|
.Pp
|
|
The functions take the following arguments:
|
|
.Bl -tag -width "resname"
|
|
.It Fa name
|
|
The name of the device to get the resource value from.
|
|
.It Fa unit
|
|
The unit number of the device.
|
|
\-1 is special and is used for wildcard entries.
|
|
.It Fa resname
|
|
The resource name.
|
|
.It Fa result
|
|
A pointer to memory in which to store the resource value.
|
|
.El
|
|
.Sh RETURN VALUES
|
|
If successful, the functions return 0.
|
|
Otherwise, a non\-zero error code is returned.
|
|
.Sh ERRORS
|
|
The functions will fail if:
|
|
.Bl -tag -width Er
|
|
.It Bq Er ENOENT
|
|
The resource could not be found.
|
|
.It Bq Er EFTYPE
|
|
Inappropriate resource type.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr device 9 ,
|
|
.Xr driver 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Warner Losh Aq imp@FreeBSD.org .
|