Re: An issue about DriverUnload

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Hi, Doron,

Thanks for your reply. My question is not clear I think, I'm sorry for
that.
First, my device is a TouchScreen use serial port just like a mouse
operation.
Second, I created SymbolicLink in order to open handle in APP program
and sent some custom IOCTL to device driver.
And I called

status = IoRegisterPlugPlayNotification (
EventCategoryDeviceInterfaceChange,
PNPNOTIFY_DEVICE_INTERFACE_INCLUDE_EXISTING_INTERFACES,
(PVOID)&GUID_CLASS_COMPORT ,
DeviceExtension->DriverObject,
(PDRIVER_NOTIFICATION_CALLBACK_ROUTINE)ComPortNotifyInterfaceChange,
(PVOID)DeviceExtension,
&DeviceExtension->NotificationHandle);

in AddDevice function. After return SUCCESS, I create a thread by
PsCreateSystemThread to receive Touch Data all the time.

And now, I can't receive any PnP request, Even the DriverUnload
function will be never called without IoAttachDeviceToDeviceStack.
Should I create a notification from APP program (Call
RegisterDeviceNotification) to device driver?

Daniel

On 9月18日, 上午1时38分, "Doron Holan [MSFT]" <dor....@xxxxxxxxxxxxxxxxxxxx>
wrote:
first, is the OS serial mouse dirver not sufficient? second, is your serial
mouse serial enumerable? you should not be creating sym links in your mouse
driver, mouclass does that for you

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