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- currently i enable the 1% battery SOC wakeup when the battery is
getting low, and check the voltage against critical (5.7V) then.
but that's only possible if we're awake to
notice. i'm reluctant to enable the 1% battery SOC
wakeup all the time, because that seems like a lot of
wakeups. too bad there's no "wake me at this battery
threshold" wakeup -- preferably for voltage, which is what
really matters. (we should fix the
/sys/class/power_supply/olpc-battery/capacity_level
output as well, but that's in the kernel. currently it
never hits "critical".)
[ later: it seems the EC generates a critical battery
SCI. the kernel just needs to start watching for it. ]
if wakeup happened a bit early then we could beep
(configurable) every so often thereafter until we hit shutdown
or the condition cleared.
- there's no way to specify no dimming for just one of the
modes. i.e., i'd like dimming when on battery in laptop
mode, but not in ebook mode (where i want it to sleep
right away, but at full brightness). this would mean
a per-mode dimlevel.
better to create separate configurations, and switch among
them using "powerd-config <profilename>", which will
swap in a different config and signal powerd to reconfigure.
this lets one manage different configs for different
uses. the way the laptop is used on vacation might be
different than at school, or than at the beach, etc.)
- add monitoring of network load (how?) to prevent sleeps?
- someone should write an ohmd "keystore" to powerd
"inhibit-file" translator to convert the get/set that
some activities and processes do in order to inhibit
suspend into something powerd can use. or else, augment
the activities to use the new api as well as, or in place
of, the old.
- how should mesh and AP connections be treated wrt keeping the
wireless alive? if we sleep with an AP connection, will we
eventually lose association anyway?
debxo:
- rtcwake doesn't work -- kernel config?
/sys/class/rtc/rtc0/device/power/wakeup: No such file or directory
rtcwake: /dev/rtc0 not enabled for wakeup events
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