Adaptec 1542CP - Storage Controller Fast SCSI 10 MBps Guide de l'utilisateur télécharger pdf (Page 147)

Installing and Configuring Enhanced OS-9

Enhanced OS-9 for X86 PCAT 147

func, offsetof(pci_config_reg, irq_line));

printf("PCI irq line = %d\n", irqline);

return EXIT_SUCCESS;

}

pci_read_configuration_word() - read PCI configuration

word

Syntax

#include <pcicnfg.h>

u_int16 pci_read_configuration_word(u_int32 bus, u_int32 dev,

u_int32 func, u_int32 index);

State

System

Description

pci_read_configuration_word() will return the PCI configuration word

value 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>

#include <stdlib.h>

main()

{

u_int8 bus, dev, func;

u_int16 vend_id;

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

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

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

vend_id = pci_read_configuration_word(bus, device,

func, offsetof(pci_config_reg, vendor_id));

printf("PCI vendor id = 0x%04x\n", vendor_id);

return EXIT_SUCCESS;

}

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Adaptec 1542CP - Storage Controller Fast SCSI 10 MBps Guide de l'utilisateur Page 147