BatteryIoctl

CompBattGetDeviceObjectPointer

NTSTATUS NTAPI BatteryIoctl	(	IN ULONG	IoControlCode,
		IN PDEVICE_OBJECT	DeviceObject,
		IN PVOID	InputBuffer,
		IN ULONG	InputBufferLength,
		IN PVOID	OutputBuffer,
		IN ULONG	OutputBufferLength,
		IN BOOLEAN	InternalDeviceIoControl
	)

Definition at line 17 of file compmisc.c.

Referenced by CompBattGetBatteryGranularity(), and CompBattGetBatteryInformation().

{
    IO_STATUS_BLOCK IoStatusBlock;
    KEVENT Event;
    NTSTATUS Status;
    PIRP Irp;
    PAGED_CODE();
    if (CompBattDebug & 0x100) DbgPrint("CompBatt: ENTERING BatteryIoctl\n");

    /* Initialize the event and IRP */
    KeInitializeEvent(&Event, SynchronizationEvent, 0);
    Irp = IoBuildDeviceIoControlRequest(IoControlCode,
                                        DeviceObject,
                                        InputBuffer,
                                        InputBufferLength,
                                        OutputBuffer,
                                        OutputBufferLength,
                                        InternalDeviceIoControl,
                                        &Event,
                                        &IoStatusBlock);
    if (Irp)
    {
        /* Call the class driver miniport */
        Status = IoCallDriver(DeviceObject, Irp);
        if (Status == STATUS_PENDING)
        {
            /* Wait for result */
            KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
            Status = IoStatusBlock.Status;
        }
        
        /* Print failure */
        if (!(NT_SUCCESS(Status)) && (CompBattDebug & 8))
            DbgPrint("BatteryIoctl: Irp failed - %x\n", Status);
        
        /* Done */
        if (CompBattDebug & 0x100) DbgPrint("CompBatt: EXITING BatteryIoctl\n");
    }
    else
    {
        /* Out of memory */
        if (CompBattDebug & 8) DbgPrint("BatteryIoctl: couldn't create Irp\n");
        Status = STATUS_INSUFFICIENT_RESOURCES;
    }
    
    /* Return status */
    return Status;
}

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