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Manual Pages  — BUS_SET_RESOURCE

NAME

bus_set_resource – associate a definite resource with a given resource ID

CONTENTS

SYNOPSIS

#include <sys/param.h>
#include <sys/bus.h>

#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>

int
bus_set_resource(device_t dev, int type, int rid, rman_res_t start, rman_res_t count);

DESCRIPTION

The bus_set_resource() function sets the start address of the resource type, ,, rid pair to be count long. Typically, client drivers do not use this interface. Bus drivers, however, often use it to set up the resources a client driver uses.

The arguments are as follows:
dev
  The device to set the resource on.
type
  The type of resource you want to allocate. It is one of:

SYS_RES_IRQ for IRQs
SYS_RES_DRQ for ISA DMA lines
SYS_RES_IOPORT
  for I/O ports
SYS_RES_MEMORY
  for I/O memory
rid
  A bus-specific handle that identifies the resource being allocated.
start
  The start address of this resource.
count
  The length of the resource. For example, the size of the memory in bytes.

RETURN VALUES

Zero is returned on success, otherwise an error is returned.

SEE ALSO

bus_alloc_resource(9), bus_get_resource(9), device(9), driver(9)

AUTHORS

This manual page was written by Warner Losh <Mt imp@FreeBSD.org>.

BUS_SET_RESOURCE (9) March 29, 2003

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