Re: kicking everybody out of the softc

[Matt Thomas <matt%3am-software.com@localhost>]

> 
> Anyway, that's the gist of the idea.  I've attached the untested (and
> uncompiled) code for the details.  Comments?

Seems overly complex.  Why shouldn't a driver be able to defer its detachment 
just like we can defer in attach? 

void device_detach_defer(device_t);

When the driver has finally cleaned everything up it can do

void device_detach_complete(device_t);

to force the softc/device_t to be freed.