I have a KMDF driver. This driver can read ACPI _DSM methods by sending IOCTL to its local IO target(ACPI driver) by calling WdfDeviceGetIoTarget(Device). Below is the device stack: Device stack
But now, I created lower filter driver(UMDF) to my KMDF driver and device stack is below: New device stack So, now I need to create Remote IO target to ACPI driver to send IOCTL. I know that we can call local IO target in MydriverUMDF.dll but I need to send IOCTL from MydriverKMDF.sys only.
Does anyone has any idea please help me to do this?.
Thanks in advance!
WdfIoTargetOpen() requires some info abt ACPi driver like device obj, file obj, device interface.
