FDs Direct Access Completion Port Object Created by U-Mode Job

I have my JobObject create a completion port to share its PID ( the ID’s
of all processes and their children grouped under my JobObject ) creation
and destruction with my filter driver. Can I bind that same completion
port object directly from my filter driver through its corresponding
kernel-mode service? Or should I stick with using IOCTL’s to deliver a
buffer pointer to a PID table I construct and maintain from my user mode
app?

THNX Fellas(ettes)
SLR-