bus_set_resource
- associate a definite resource with a given resource ID
SYNOPSIS
#include <sys/param.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h> int
Fo bus_set_resource
Fa device_t dev int type int rid u_long start u_long count
Fc
DESCRIPTION
The
bus_set_resource ();
function
sets the start address of the resource
Fa type , rid
pair to be
Fa 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:
Fa dev
The device to set the resource on.
Fa 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
Fa rid
A bus-specific handle that identifies the resource being allocated.
Fa start
The start address of this resource.
Fa 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.
