1.\" 2.\" Copyright (c) 2008 3.\" The DragonFly Project. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in 13.\" the documentation and/or other materials provided with the 14.\" distribution. 15.\" 3. Neither the name of The DragonFly Project nor the names of its 16.\" contributors may be used to endorse or promote products derived 17.\" from this software without specific, prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 22.\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 23.\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24.\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 25.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 26.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 27.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 28.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 29.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" $DragonFly: src/share/man/man9/bus_get_resource.9,v 1.1 2008/11/09 09:48:41 swildner Exp $ 33.\" $FreeBSD$ 34.\" 35.Dd September 26, 2015 36.Dt BUS_GET_RESOURCE 9 37.Os 38.Sh NAME 39.Nm bus_get_resource 40.Nd "read a resource range/value with a given resource ID" 41.Sh SYNOPSIS 42.In sys/param.h 43.In sys/bus.h 44.In sys/rman.h 45.Ft int 46.Fo bus_get_resource 47.Fa "device_t dev" "int type" "int rid" "rman_res_t *startp" "rman_res_t *countp" 48.Fc 49.Sh DESCRIPTION 50The 51.Fn bus_get_resource 52function reads the range or value of the resource 53.Fa type , rid 54pair and stores it in the 55.Fa startp 56and 57.Fa countp 58arguments. 59.Pp 60The arguments are as follows: 61.Bl -tag -width ".Fa startp" 62.It Fa dev 63The device to read the resource from. 64.It Fa type 65The type of resource you want to read. 66It is one of: 67.Pp 68.Bl -tag -width ".Dv SYS_RES_MEMORY" -compact 69.It Dv SYS_RES_IRQ 70for IRQs 71.It Dv SYS_RES_DRQ 72for ISA DMA lines 73.It Dv SYS_RES_MEMORY 74for I/O memory 75.It Dv SYS_RES_IOPORT 76for I/O ports 77.El 78.It Fa rid 79A bus-specific handle that identifies the resource being read. 80.It Fa startp 81A pointer to the start address of this resource. 82.It Fa countp 83A pointer to the length of the resource. 84For example, the size of the memory in bytes. 85.El 86.Sh RETURN VALUES 87Zero is returned on success, otherwise an error is returned. 88.Sh SEE ALSO 89.Xr bus_set_resource 9 , 90.Xr device 9 , 91.Xr driver 9 92.Sh AUTHORS 93This manual page was written by 94.An Sascha Wildner . 95