I want to do away with dependency on one of the intermediate driver and put some code into the pre-existing video mini port driver. Is there any way that a normal user mode function can communicate to the Video Mini port driver directly?
Can we create Symbolic link in video mini port driver?
I do understand that this is not the norm and DriverEntry() for mini port driver is different. We do not have driver object. But is there a possibility to work around this?
Thanks,
Rohit
Yes, there is a way to talk to Video Miniport driver. Your user mode driver
registers for PNP notification, and use GUID_DEVINTERFACE_DISPLAY_ADAPTER (
https://msdn.microsoft.com/en-us/library/windows/hardware/ff545831(v=vs.85).aspx
) to identify an existing VideoMiniport device.
Check toaster example if you are not familiar with PNP device interface.
2016-05-04 1:53 GMT+08:00 :
> I want to do away with dependency on one of the intermediate driver and
> put some code into the pre-existing video mini port driver. Is there any
> way that a normal user mode function can communicate to the Video Mini port
> driver directly?
> Can we create Symbolic link in video mini port driver?
> I do understand that this is not the norm and DriverEntry() for mini port
> driver is different. We do not have driver object. But is there a
> possibility to work around this?
>
> Thanks,
> Rohit
>
> —
> NTDEV is sponsored by OSR
>
> Visit the list online at: <
> http://www.osronline.com/showlists.cfm?list=ntdev>
>
> MONTHLY seminars on crash dump analysis, WDF, Windows internals and
> software drivers!
> Details at http:
>
> To unsubscribe, visit the List Server section of OSR Online at <
> http://www.osronline.com/page.cfm?name=ListServer>
></http:>