hardware.h File Reference

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Functions
NTSTATUS	LegacyAttachInterrupt (IN PDEVICE_OBJECT DeviceObject, IN UCHAR Irq, IN PKSERVICE_ROUTINE ServiceRoutine, OUT PKINTERRUPT *InterruptObject)

Function Documentation

LegacyAttachInterrupt()

NTSTATUS LegacyAttachInterrupt	(	IN PDEVICE_OBJECT	DeviceObject,
		IN UCHAR	Irq,
		IN PKSERVICE_ROUTINE	ServiceRoutine,
		OUT PKINTERRUPT *	InterruptObject
	)

Definition at line 25 of file hardware.c.

{
    NTSTATUS Status;
    ULONG Vector;
    KIRQL IrqLevel;
    KAFFINITY Affinity;
 
    DPRINT("Obtaining interrupt vector");
 
    Vector = HalGetInterruptVector(Isa,
                                   0,
                                   Irq,
                                   Irq,
                                   &IrqLevel,
                                   &Affinity);
 
    DPRINT("Vector %d", Vector);
    DPRINT("Connecting IRQ %d", Irq);
 
    Status = IoConnectInterrupt(InterruptObject,
                                ServiceRoutine,
                                DeviceObject,
                                NULL,
                                Vector,
                                IrqLevel,
                                IrqLevel,
                                Latched,
                                FALSE,
                                Affinity,
                                FALSE);
 
    if ( Status == STATUS_INVALID_PARAMETER )
    {
        Status = STATUS_DEVICE_CONFIGURATION_ERROR;
    }
 
    return Status;
}