On Fri, 14 Dec 2007, Joerg Sonnenberger wrote:
>> Log Message:
>> Add a resume handler for com@isa, using Jared McNeill's suggested
>> code from current-users.  com@acpi, et cetera, remain to be done.
>
> Does com(4) need anything to stop interrupts on resume?

The patch I posted merely converted the existing com_powerhook to the pmf 
APIs. It should be revisited at some point.

Cheers,
Jared