/*                              SCSIBusInquiry.c                                */

/*

 * SCSIBusInquiry.c

 * Copyright © 1992-93 Apple Computer Inc. All Rights Reserved.

 *

 * Get information on a specified host bus adaptor (HBA) incluing the number

 * of HBA's installed.

 *

 * This function will crash if the New SCSI Manager is not installed.

 *

 */

#include "SCSIAsyncSample.h"

OSErr

GetHostBusCount(

        short                       *busCount

    )

{

        OSErr                       status;

        SCSIBusInquiryPB            busInquiryPB;

#define PB                          (busInquiryPB)

        CLEAR(PB);

        PB.scsiPBLength = sizeof PB;

        PB.scsiFunctionCode = SCSIBusInquiry;

        PB.scsiDevice.bus = 0;

        status = SCSIAction((SCSI_PB *) &PB);

        if (status == noErr)

            *busCount = PB.scsiHiBusID;

        return (status);

}