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Opening driver's own device STATUS_NO_SUCH_DEVICE

Dejan_MaksimovicDejan_Maksimovic Member - All Emails Posts: 608


Is there any limitation to opening a driver's own device via IoGetDeviceObjectPointer? I create a device in DriverEntry (DO_DEVICE_INITIALIZING is unset before IoGetDeviceObjectPointer is called), and try to open it from a system thread (while DriverEntry is still in progress, but the device is set up already, DriverEntry waits for the system thread to exit), but am getting STATUS_NO_SUCH_DEVICE (not STATUS_OBJECT_NAME_NOT_FOUND like when the device doesn't exist at all).
Any idea what could be up?

Regards, Dejan.


  • Mark_RoddyMark_Roddy Member - All Emails Posts: 4,708

    Offhand I don't know why IoGetDeviceObjectPointer is failing, but you already have a deviceobject pointer, you got it when you created the device. Why would you need another one?

  • Dejan_MaksimovicDejan_Maksimovic Member - All Emails Posts: 608
    via Email
    For testing purposes.

    I hate it when I spend hours, get nothing, ask online, figure 5 minutes

    I did the attach when Unload is already called!

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