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, u_long start,
u_long 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 〈imp@FreeBSD.org〉.