Subject: Re: uhid and UPS's
To: Wolfgang S. Rupprecht <>
From: Martin Husemann <>
List: tech-userlevel
Date: 11/15/2004 22:37:01
On Mon, Nov 15, 2004 at 01:23:52PM -0800, Wolfgang S. Rupprecht wrote:
> In any case, it is tempting to tie it into the apm logic a bit tighter
> and have the kernel and UPS coordinate the power-off event a bit
> better than they now do.  The current apcupsd power-off logic uses a
> timer in the UPS and if the shutdown is a bit slow the UPS could cut
> power before the kernel unmounted everything.

This is a different topic altogether, and it should not be tied to this
(potential) device driver, since serial connected UPSes share the same
problem (and other ups userland drivers, like ups-nut). I would realy like
the kernel/init and /etc/rc.d to cooperate to be able to run a special rc
script after all other file systems have been unmounted and / has been
synced and maybe even remounted read-only again.