>>  > > try adding fifo disabling code in com.c in comclose()?
>>  > 
>>  > I would think that a shutdownhook would be more appropriate?
>> 
>> I think I agree with Perry ...
>
>There's no reason to add a `shutdown hook' for something that can just
>as well be put in the device close routine.
>
>Has someone tried this and verified that it actually fixes the
>problem?

I tried this just now, and it fixes the problem.  I'm sending in a pr now.

--Ken