Adaptec 1542CP - Storage Controller Fast SCSI 10 MBps Podręcznik Użytkownika Pobierz pdf (Strona 146)

146 Enhanced OS-9 for X86 PCAT

Installing and Configuring Enhanced OS-9

u_int8 bus, dev;

u_int32 index = 0;

if (pci_find_class_code(NETWORK_ATM_CONTROLLER,

index, &bus, &dev) == SUCCESS)

{

printf("device at bus:%02d dev:%02d func:%02d\n",

bus, dev&0x1f, dev>>5);

}

return EXIT_SUCCESS;

}

pci_read_configuration_byte() - read PCI configuration

byte

Syntax

#include <pcicnfg.h>

u_int8 pci_read_configuration_byte(u_int32 bus, u_int32 dev,

u_int32 func, u_int32 index);

State

System

Description

pci_read_configuration_byte() will return the PCI configuration byte

value for the PCI device at ’bus’ bus number, ’dev’ device number, ’func’

function number, ’index’ offset into the configuration space.

Header Files

MWOS/SRC/DEFS/HW/pcicnfg.h

Example

#include <const.h>

#include <pcicnfg.h>

#include <stdio.h>

#include <stdlib.h>

main()

{

u_int8 bus, dev, func;

u_int8 irqline;

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

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

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

irqline = pci_read_configuration_byte(bus, device,

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Adaptec 1542CP - Storage Controller Fast SCSI 10 MBps Podręcznik Użytkownika Strona 146