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Diffstat (limited to 'share/man/man9/bus_release_resource.9')
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diff --git a/share/man/man9/bus_release_resource.9 b/share/man/man9/bus_release_resource.9 new file mode 100644 index 0000000..b1178ed --- /dev/null +++ b/share/man/man9/bus_release_resource.9 @@ -0,0 +1,104 @@ +.\" -*- nroff -*- +.\" +.\" Copyright (c) 2000 Alexander Langer +.\" +.\" 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 May 18, 2000 +.Dt BUS_RELEASE_RESOURCE 9 +.Os FreeBSD +.Sh NAME +.Nm bus_release_resource +.Nd release resources on a bus +.Sh SYNOPSIS +.Fd #include <sys/param.h> +.Fd #include <sys/bus.h> +.Fd #include <sys/rman.h> +.Fd #include <sys/resource.h> +.Ft int +.Fn bus_release_resource "device_t dev" "int type" "int rid" "struct resource *r" +.Sh DESCRIPTION +Free a resource allocated by +.Xr bus_alloc_resource 9 . +The resource must not be in use on release, i.e. call an appropriate function +before (e.g. +.Xr bus_teardown_intr 9 +for IRQs). +.Bl -item +.It +.Fa dev +is the device that owns the resource. +.It +.Fa type +is the type of resource that is released. +It must be of the same type you allocated it as before. +See +.Xr bus_alloc_resource 9 +for valid types. +.It +.Fa rid +is the resource ID of the resource. +The +.Fa rid +value must be the same as the one returned by +.Xr bus_alloc_resource 9 . +.It +.Fa r +is the pointer to +.Va struct res , +i.e. the resource itself, +returned by +.Xr bus_alloc_resource 9 . +.El +.Sh RETURN VALUES +.Er EINVAL +is returned, if the device +.Fa dev +has no parent, +.Dv 0 +otherwise. +The kernel will panic, if it can't release the resource. +.Sh EXAMPLES +.Bd -literal + /* deactivate IRQ */ + bus_teardown_intr(dev, foosoftc->irqres, foosoftc->irqid); + + /* release IRQ resource */ + bus_release_resource(dev, SYS_RES_IRQ, foosoftc->irqid, + foosoftc->irqres); + + /* release I/O port resource */ + bus_release_resource(dev, SYS_RES_IOPORT, foosoftc->portid, + foosoftc->portres); +.Ed +.Sh SEE ALSO +.Xr driver 9 , +.Xr device 9 , +.Xr bus_alloc_resource 9 +.Sh AUTHORS +This man page was written by +.An Alexander Langer Aq alex@big.endian.de . |