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<div class="moz-cite-prefix">On 13/01/2015 00:39, Charles Lepple
wrote:<br>
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cite="mid:DD298E89-E06A-4AF6-A926-D5FF070F9FFF@gmail.com"
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On Jan 11, 2015, at 11:48 PM, Graham Menhennitt <<a
moz-do-not-send="true" href="mailto:graham@menhennitt.com.au">graham@menhennitt.com.au</a>>
wrote:<br>
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<div>The file drivers/usbhid-ups.c is looking for any of
the following conditions to declare LB:</div>
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<div>• STATUS(LOWBATT)</div>
<div>• STATUS(TIMELIMITEXP)</div>
<div>• STATUS(SHUTDOWNIMM)</div>
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<div>The mapping to HID Path names will depend on the
model, but STATUS(LOWBATT) can come from
...BelowRemainingCapacityLimit, which is 0 in both
instances in your log. STATUS(TIMELIMITEXP) maps to
...RemainingTimeLimitExpired, which I don't see, and
STATUS(SHUTDOWNIMM) would cause an ups.alarm message to
show up in upsc.<br>
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<span style="font-family: Helvetica; font-size: 14px;
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word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); float: none;
display: inline !important;">I've done a bit more
investigating. I added a diagnostic printf("%x",
ups_status) at the point where LB is set. It shows that
it's RemainingTimeLimitExpired that's causing the LB
condition. Below is a bit more of the driver log which
shows RemainingTimeLimitExpired changing to 1 and then
back to 0 again. What does that variable mean?</span><br
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I still think the combination of override.battery.runtime.low
and the ignorelb setting should get you the shutdown trigger you
are looking for. You might also need to set pollfreq to a lower
value than its default of 30 seconds, since the
RemainingTimeLimit value is not requested during the Quick
update every two seconds. <br>
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<br>
Thanks, Charles.<br>
<br>
I've changed the usb.conf entry to be:<br>
<blockquote>[maxwell]<br>
driver = usbhid-ups<br>
port = auto<br>
ignorelb<br>
override.battery.charge.low = 5<br>
override.battery.runtime.low = 10<br>
</blockquote>
but I'm still getting the messages. They're much less frequent now -
maybe every few hours instead of every few minutes. It's not
actually causing a shutdown, so it's just the inconvenience of the
messages. I can try reducing the values above even more.<br>
<br>
Thanks again for your help,<br>
Graham<br>
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