I need to write a umdf filter for WPD device,
The relevant section of the inf file is:
…
[Wdpmtp_Install.NTamd64.Wdf]
Include = wpdmtp.inf
Needs = WPD.MTP.Wdf
UmdfService=myumdf, WudfWpdMtpFilter_Install.NTamd64
UmdfServiceOrder=WpdMtpDriver, myumdf
[WudfWpdMtpFilter_Install.NTamd64]
UmdfLibraryVersion=1.9.0
DriverCLSID = “{D1D66B39-7360-48d8-AE4A-03BB4DEE892C}”
ServiceBinary = %12%\UMDF\myumdf.dll
…
After using this inf and dll installation, the device can be used normally.
my question is:
If the third party has installed a umdf filter in the system, for example, the name is thirdumdf,
How can I rewrite my inf file so that myumdf does not cover thirdumdf, but two umdf filters coexist in the system and work normally.
Might have to modify this:
UmdfServiceOrder=WpdMtpDriver, thirdumdf, myumdf
What else needs to be modified?
Thank you