Hello all,

I am hoping to get some help on device interface notification
for a USB composite device. I communicate with
a Virtual COM function driver that loads on top of the
composite driver.

I register for notifications of the USB driver but I need to determine
which function driver (COM#) is being removed or arriving as well.
This is a multi-port driver so there may be as many as 8 devices on the
system.

What I receive as you all know is the symbolic link. From there
I think I can determine the port by using the registry but I
don't know that is the correct way or not.

Any help will be appreciated
~Mike