Adaptec 1542CP - Storage Controller Fast SCSI 10 MBps Podręcznik Użytkownika Pobierz pdf (Strona 151)

Installing and Configuring Enhanced OS-9

Enhanced OS-9 for X86 PCAT 151

pci_write_configuration_dword() - write PCI

configuration dword

Syntax

#include <pcicnfg.h>

error_code pci_write_configuration_dword(u_int32 bus,

u_int32 dev, u_int32 func, u_int32 index, u_int32 val);

State

System

Description

pci_write_configuration_dword() writes to the PCI configuration space

the dword value ’val’ for the PCI device at ’bus’ bus number, ’dev’ device

number, ’func’ function number, ’index’ offset into the configuration

space.

Header File

MWOS/SRC/DEFS/HW/pcicnfg.h

Example

#include <const.h>

#include <pcicnfg.h>

#include <stdio.h>

main()

{

u_int8 bus, dev, func;

u_int32 value;

bus = 0; /* device on bus zero */

device = 11; /* device ID = 11 */

func = 0; /* function number = 0 */

value = 0xffffffff; /* get size info from device */

error = pci_write_configuration_dword(bus, dev, func,

offsetof(pci_config_reg, base_addrs[0]), value);

return error;

}

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Adaptec 1542CP - Storage Controller Fast SCSI 10 MBps Podręcznik Użytkownika Strona 151