[Nut-upsdev] Bug#501087: nut: support for a tripplite avr750u

[Arnaud Quette]

2008/10/4 Arjen de Korte <nut+devel at de-korte.org>:
> Citeren Charles Lepple <clepple at gmail.com>:
>
>> Going out on a limb here, maybe it's something that we have to
>> explicitly poll (versus waiting for it to be reported on the interrupt
>> pipe), for the times when it is below 100%.
>
> The usbhid-ups driver polls for practically all variables. The polling
> frequency is determined by a flag that is passed in the HID2NUT lookup
> table:
>
> (default) - every 'pollfreq' seconds (default: 30)
> HU_FLAG_QUICK_POLL - every 'pollinterval' seconds (default: 2)
> HU_FLAG_SEMI_STATIC - when something has been written to the UPS
> HU_FLAG_STATIC - only at startup
>
> In the current 'tripplite-hid' subdriver, the 'battery.charge' has no
> special flags assigned, so it will be polled every 'pollfreq' seconds.
> Depending on the accuracy of the charge calculation and the load that is
> applied, it is quite possible that there is basically nothing reported
> between 100% and 0%.

iirc, we've already seen this before, but I don't recall the details,
and don't have enough time to dig...
the question is: does the windows software report some real battery charge?
@Raphael: it's another question for you ;-)

Arnaud
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