NAME
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
bus_set_resource(device_t dev,
int type, int rid,
rman_res_t start, rman_res_t
count);
DESCRIPTION
Thebus_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 <imp@FreeBSD.org>.