[HPS USB stack] How to read USB events from userland?

[Eygene Ryabinkin]

Hans Petter, list, good day.

Had not found the answer by googling, so I have to ask here.

How one is supposed to get the access to the USB events from the
userland code, provided one is running new usb stack?  The reason
I am asking is that the port sysutils/hal is trying to access the
events via the /dev/usb interface, but it is not present in the new
stack.  So, the port even not compiles, because things like 'struct
usb_event' and macros 'USB_EVENT_*' are non-existent.

HAL is the dependency of the xorg-server these days, so I am a bit
disappointed that portupgrade does not work for me (since hal port
is broken) and am I eager to fix this, if it is possible.

Thank you!
-- 
Eygene