On Thu, 15 Oct 2009, Justin Piszcz wrote:
On Thu, 15 Oct 2009, Charles Lepple wrote:
On Oct 13, 2009, at 5:55 PM, Justin Piszcz wrote:
Hello,
I use the following in my ups.conf:
# USB:
[apc]
driver = usbhid-ups
port = auto
desc = "APC 1500VA"
pollfreq = 5
On NUT 2.4.1 (and some older versions), the pollfreq value determines how
often usbhid-ups explicitly requests all of the values; however, the UPS is
still free to send interrupt reports at any time within that polling
interval, and those reports should be processed more frequently.
Ah..
Typically, interrupt reports are sent by the UPS when status conditions
change, so the reporting delay for something like a power failure should be
well below pollfreq.
Ok..
Was there a particular issue that led you to choose "5" for pollfreq? If
so, what version of NUT were you using at the time?
Yes, I wanted to be able to see power alerts / events when they were short.
When pollfreq is not set, or if it is set too high (e.g. 30 seconds), I do
not get any e-mail if the power goes out and then comes back on very quickly.
Ok, so is this a bug with the USB chipset used on this DP55KG board or is it
a problem with nut? OR did yet another change occur in the kernel usb
driver, I recall before I had to enable a specific option for other problems
I used to have on a different UPS 1-2 years ago.
Justin.
Hi,
I tried removing it, the problem persists, is there anything else I can
try? It would be nice to control my UPS in Linux.
Justin.
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