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We are aiming to write a UMDF driver for a PCIe device and need to access configuration space to read and write a value during initialization.
From searching here and the MS documentation this does not appear to be possible as there is no mechanism in UMDF to send an IRP down the device stack with IRP_MJ_PNP and IRP_MN_READ/WRITE_CONFIG. Would it be possible for somemone more experienced in this area to confirm this for us so that we can move on
We are able to install a KMDF lower filter and send it an Ioctl that it could convert to an IRP and pass-on. This is our "Plan B"
Thanks in advance.
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