> > and, if possible, the acutal user request (eg. mly_user_command).
> 
> I assume mly_user_command is a kauth(9) enum? (like KAUTH_REQ_DEVICE_..)
> if yes, do we care about 3rd-party device drivers that can use such
> requests? in such cases we don't have the actual user request.

i meant to pass a driver-specific structure via void *.
bsd44 listeners will just ignore it.
a listener can investigate the arg only when it knows the driver.

YAMAMOTO Takashi