[Nut-upsdev] Developing the UPS side of the UPS-NUT equation (via usbhid)
tadawson at tpcsvc.com
Thu Mar 6 21:35:13 UTC 2014
Just out of curiosity, will this device also have any network
monitoring connectivity, or just USB? Not sure what market you are
targeting, but even as a small business/home compute user, I find that
the distance limitations of USB often cause me grief, and myself, I
would love to see a network alternative as well . . . Perhaps support
for a network dongle on the USB port? More software, I know, but
depending on what's embedded in your UPS, it does eliminate the need for
a hardware-centric network implementation . . .
On 03/06/2014 02:55 PM, Rob Groner wrote:
> My company is developing a new UPS, with smarts provided by a PIC32
> Microchip micro-controller. The controller comes with a demo for a
> USBHID-UPS, and after some tweaking, I was able to get NUT to recognize
> it and start showing some reasonable values.
> To make this UPS as easy to use as possible for the end-user who chooses
> Linux, I figured I would just completely implement the official USB HID
> UPS spec. That way no subdriver would be needed, or at least very
> little. However, I am having a terrible time making sense of the pages
> in the NUT guide for writing USB HID drivers, and the USB HID usage
> table at usb.org. Just looking at some of the report ID values that I
> KNOW are working from the UPS example running on the microchip, I can’t
> seem to find their equivalent in either doc. For instance, I know that
> the UPS code is sending status info using a Report ID of 0x40 and two
> bytes of data…but I cannot find anything in the usb.org docs that
> relates to this. NUT somehow understands it, though, since it correctly
> reports the device’s status.
> Can someone point me to a reference to make sense of the doc, or some
> hints to help me interpret what I’m seeing?
> Nut-upsdev mailing list
> Nut-upsdev at lists.alioth.debian.org
Tim Dawson (tadawson at tpcsvc.com) Owner/Engineer
TPC Services Bellnet: (972)-221-7385
Lewisville, Texas 75067
"Gaff Tape can't fix 'Stupid', but it can muffle the sound..."
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