1 .\" Copyright (c) 2000 Alexander Langer
3 .\" All rights reserved.
5 .\" This program is free software.
7 .\" Redistribution and use in source and binary forms, with or without
8 .\" modification, are permitted provided that the following conditions
10 .\" 1. Redistributions of source code must retain the above copyright
11 .\" notice, this list of conditions and the following disclaimer.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
13 .\" notice, this list of conditions and the following disclaimer in the
14 .\" documentation and/or other materials provided with the distribution.
16 .\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
17 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 .\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 .\" $FreeBSD: src/share/man/man9/bus_release_resource.9,v 1.2.2.5 2001/12/17 11:30:18 ru Exp $
28 .\" $DragonFly: src/share/man/man9/bus_release_resource.9,v 1.3 2004/06/01 11:36:53 hmp Exp $
31 .Dt BUS_RELEASE_RESOURCE 9
34 .Nm bus_release_resource
35 .Nd release resources on a bus
42 .In machine/resource.h
44 .Fn bus_release_resource "device_t dev" "int type" "int rid" "struct resource *r"
46 Free a resource allocated by
47 .Xr bus_alloc_resource 9 .
48 The resource must not be in use on release, i.e. call an appropriate function
50 .Xr bus_teardown_intr 9
55 is the device that owns the resource.
58 is the type of resource that is released.
59 It must be of the same type you allocated it as before.
61 .Xr bus_alloc_resource 9
65 is the resource ID of the resource.
68 value must be the same as the one returned by
69 .Xr bus_alloc_resource 9 .
74 i.e. the resource itself,
76 .Xr bus_alloc_resource 9 .
80 is returned, if the device
85 The kernel will panic, if it can't release the resource.
89 bus_teardown_intr(dev, foosoftc->irqres, foosoftc->irqid);
91 /* release IRQ resource */
92 bus_release_resource(dev, SYS_RES_IRQ, foosoftc->irqid,
95 /* release I/O port resource */
96 bus_release_resource(dev, SYS_RES_IOPORT, foosoftc->portid,
100 .Xr bus_alloc_resource 9 ,
104 This man page was written by
105 .An Alexander Langer Aq alex@big.endian.de .