jetzt möchte ich die Funktion in meinem acpi-Treiber hinzufügen. die Funktion ist: Holen Sie sich das BIOS Notify. ich einige doc suchen, und schreiben CodeWie registriert man acpi event notify? (AcpiInterfaces.RegisterForDeviceNotifications)
NTSTATUS
XxxAddDevice(
__in struct _DRIVER_OBJECT *DriverObject,
__in struct _DEVICE_OBJECT *PhysicalDeviceObject
)
{
.
.
.
status = STATUS_SUCCESS;
DebugPrint(("AddDevice: %p to %p->%p \n",fdo,fdoData->NextLowerDO,PhysicalDeviceObject));
DebugPrint(("DeviceObject Flag = 0x%08x\n",fdo->Flags));
DebugPrint(("DevicePnPState = %d\n", fdoData->DevicePnPState));
{
//PACPI_INTERFACE_STANDARD2 pInterface =
// ExAllocatePool(PagedPool, sizeof(ACPI_INTERFACE_STANDARD2));
ACPI_INTERFACE_STANDARD Interfaces = {0};
if (&Interfaces == NULL)
{
goto FuncEnd;
}
//RtlFillMemory(pInterface, sizeof(ACPI_INTERFACE_STANDARD2), 0x00);
status = GetAcpiInterfaces(fdo, &Interfaces);
if (!NT_SUCCESS(status))
{
DebugPrint(("GetAcpiInterfaces Failed\n"));
}
else
{
DebugPrint(("******GetAcpiInterfaces Succeed\n"));
DebugPrint(("******ACPI_INTERFACE_STANDARD2 Version == %d\n", Interfaces.Version));
DebugPrint(("******AcpiInterface.RegisterForDeviceNotifications Address == %x\n",
Interfaces.RegisterForDeviceNotifications));
//Interfaces.InterfaceReference(Interfaces.Context);
}
if (Interfaces.RegisterForDeviceNotifications != NULL)
{
status = Interfaces.RegisterForDeviceNotifications(
Interfaces.Context,
ACPIDeviceNotifyHandler,
fdoData);
if (!NT_SUCCESS(status))
{
DebugPrint(("RegisterForDeviceNotifications Failed\n"));
}
else
{
DebugPrint(("RegisterForDeviceNotifications Succeed\n"));
}
}
//Free Memory
//ExFreePool(pInterface);
// PDEVICE_OBJECT target = fdoData->NextLowerDO;
// RegisterACPINotifyEvent(target, fdoData);
status = STATUS_SUCCESS;
}
FuncEnd:
return status;
}
NTSTATUS
GetAcpiInterfaces(
IN PDEVICE_OBJECT Pdo,
OUT PACPI_INTERFACE_STANDARD AcpiInterfaces
)
{
NTSTATUS Status = STATUS_NOT_SUPPORTED;
PIRP Irp;
PIO_STACK_LOCATION IrpSp;
PDEVICE_OBJECT LowerPdo = NULL;
KEVENT event;
DebugPrint(("Enter GetAcpiInterfaces...\n"));
KeInitializeEvent(&event, NotificationEvent, FALSE);
// Only need to do this once
if (!LowerPdo)
{
LowerPdo = IoGetAttachedDeviceReference(Pdo);
// Allocate an IRP for below Irp = IoAllocateIrp
// (LowerPdo->StackSize, FALSE); // Get stack size from
// PDO
Irp = IoAllocateIrp(LowerPdo->StackSize, FALSE);
if (Irp == NULL)
{
DebugPrint(("IoAllocateIrp Failed...\n"));
Status = STATUS_UNSUCCESSFUL;
return Status;
}
IrpSp = IoGetNextIrpStackLocation(Irp);
//
// Use QUERY_INTERFACE to get the address of the direct-
// call ACPI interfaces.
//
IrpSp->MajorFunction = IRP_MJ_PNP;
IrpSp->MinorFunction = IRP_MN_QUERY_INTERFACE;
IrpSp->Parameters.QueryInterface.InterfaceType = (LPGUID)&GUID_ACPI_INTERFACE_STANDARD;
IrpSp->Parameters.QueryInterface.Version = 1;
IrpSp->Parameters.QueryInterface.Size = sizeof(ACPI_INTERFACE_STANDARD);
IrpSp->Parameters.QueryInterface.Interface = (PINTERFACE)AcpiInterfaces;
IrpSp->Parameters.QueryInterface.InterfaceSpecificData = NULL;
IoSetCompletionRoutine(Irp, ACPIDriverSynchronousRequest, &event, TRUE, TRUE, TRUE);
DebugPrint(("******Before IoCallDriver.Status == %08X\n", Status));
Status = IoCallDriver(LowerPdo, Irp);
DebugPrint(("******IoCallDriver.Status == %08X\n",Status));
//Wait for complete
if (Status == STATUS_PENDING)
{
DebugPrint(("KeWaitForSingleObject QueryInterface...\n"));
Status = KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
DebugPrint(("KeWaitForSingleObject.Status == %08X\n", Status));
DebugPrint(("pNewIrp->IoStatus.Status == %08X\n", Irp->IoStatus.Status));
}
//IoFreeIrp(Irp);
}
return Status;
}
die Completion Rückkehr STATUS_SUCCESS, aber die Schnittstelle ist noch leer ...
Parameters.QueryInterface.Interface nicht gefüllt nicht sein ... kann einige ein Hilf mir ??? MSDN Über IRP_MN_QUERY_INTERFACE enter link description here enter image description here