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

[Arjen de Korte]

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%.

Best regards, Arjen
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