NTSTATUS NTAPI KMix_InstallDevice ( IN PDRIVER_OBJECT DriverObject )
Definition at line 40 of file kmixer.c.
{
    NTSTATUS Status;
    UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\kmixer");
    PDEVICE_OBJECT DeviceObject;
    PKMIXER_DEVICE_EXT DeviceExtension;

    DPRINT1("KMix_InstallDevice called\n");

    /* create the device */
    Status = IoCreateDevice(DriverObject,
                            sizeof(KMIXER_DEVICE_EXT),
                            &DeviceName,
                            FILE_DEVICE_KS,
                            0,
                            FALSE,
                            &DeviceObject);

    /* check for success */
    if (!NT_SUCCESS(Status))
    {
        DPRINT("Failed to create \\Device\\kmixer !\n");
        return Status;
    }

    DeviceExtension = (PKMIXER_DEVICE_EXT)DeviceObject->DeviceExtension;
    /* initialize device extension */
    RtlZeroMemory(DeviceExtension, sizeof(KMIXER_DEVICE_EXT));


    Status = KMixAllocateDeviceHeader(DeviceExtension);
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("KMixAllocateDeviceHeader failed with %x\n", Status);
        goto cleanup;
    }

     /* set io flags */
     DeviceObject->Flags |= DO_DIRECT_IO | DO_POWER_PAGABLE;
     /* clear initializing flag */
     DeviceObject->Flags &= ~ DO_DEVICE_INITIALIZING;

    DPRINT("KMix_InstallDevice result %x\n", Status);
    return STATUS_SUCCESS;

cleanup:

    IoDeleteDevice(DeviceObject);
    return Status;
}
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