Nut upsuser - Apr 2008 - HID PDU implementation [WAS: 24V DC ATX PSU with limited UPS functionality over USB]

Hello Charles,

Am 2008-03-13 19:27:27, schrieb Charles Lepple:
> 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.
> 
> 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.
Now I have read Tonns of documents and i am puzzeling  arround,  HOW  to
implement the HID PDC stuff in my PDU.  Can you tell  me,  where  I  can
find documents and maybe example source codes for the implementation?

Thanks, Greetings and nice Day
    Michelle Konzack
    Systemadministrator
    24V Electronic Engineer
    Tamay Dogan Network
    Debian GNU/Linux Consultant


-- 
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
Michelle Konzack   Apt. 917                  ICQ #328449886
+49/177/9351947    50, rue de Soultz         MSN LinuxMichi
+33/6/61925193     67100 Strasbourg/France   IRC #Debian (irc.icq.com)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url :
http://lists.alioth.debian.org/pipermail/nut-upsuser/attachments/20080429/5d87e071/attachment.pgp

On Tue, Apr 29, 2008 at 3:33 PM, Michelle Konzack
<linux4michelle at freenet.de> wrote:
> Hello Charles,
>
>  Am 2008-03-13 19:27:27, schrieb Charles Lepple:
>  > 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.
>  >
>  > 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.
>
>  Now I have read Tonns of documents and i am puzzeling  arround,  HOW  to
>  implement the HID PDC stuff in my PDU.  Can you tell  me,  where  I  can
>  find documents and maybe example source codes for the implementation?
The PDC spec: http://www.usb.org/developers/devclass_docs/pdcv10.pdf

Not sure where to find source examples - of course, it would depend on
the microcontroller. There was a SourceForge project a while back for
adapting old Sun keyboards and mice to HID input devices, though -- if
you can't find it, let me know, but I don't have it bookmarked
anymore.

-- 
- Charles Lepple