Hi again, Am 2008-03-13 19:27:27, schrieb Charles Lepple: > On Thu, Mar 13, 2008 at 5:50 PM, Jean Delvare <[EMAIL PROTECTED]> wrote: > > Given that you are working on a PSU and not a UPS, > > I guess it depends on which part of the "limited UPS functionality" > Michelle is referring to. > > If the PSU signals to the PC that it is time to shut down due to lack > of reserve power, then it might benefit from NUT's existing > infrastructure (granted, the "N" in NUT is often extra baggage...)
You have gotten it. I like to be able to shutdown the computer (or let
it sleeping) if the Uin is less then a user specified value...
But currently I do not know, HOW I can wakeup the computer...
But since the +5Vsb (from the ATX PSU) is permanent powered the computer
must whatch the USB port to wake up... But I do not know, HOW to send
such signal from my PSU-µC over the USB-Port...
Not found the specs for it. Can you help me out?
> If you have a specific motherboard in mind, this is probably a good
> plan, but not all motherboards with I2C make the bus available to
> external devices.
Are there some?
> Another advantage of going the HID PDC route (regardless of whether
> NUT is involved) is that the device is essentially self-describing. If
> the first version does not have a shutdown flag, but later versions
> do, then very little driver code needs to change - just device
> firmware.
This, what I was thinking about... With a small µC in the PSU and a
firmware upgrade plus the right UPS-Software, it would be very easy.
> Also, I believe that GNOME has a power monitor that works with HID PDC
> devices out-of-the-box, which would be another bonus feature if you go
> down the USB route.
Where can I get more infos about the HID PDC devices?
Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
24V Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant
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