Re: [PATCH v2 2/2] power: bq27xxx_battery: add poll interval property query

[Pavel Machek <pavel@ucw.cz>]

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On Thu 2016-11-03 22:00:56, Matt Ranostay wrote:
> On Wed, Nov 2, 2016 at 1:22 AM, Pavel Machek <pavel@ucw.cz> wrote:
> > Hi!
> >
> >> >> >> Better then previous one.
> >> >> >>
> >> >> >> But my version of bq27xxx_battery.c already contains this:
> >> >> >
> >> >> > This is for allowing udev rule to set the properties as well.
> >> >> > otherwise a kinda crude RUN = " echo value >
> >> >> > /sys/module/bq27xxx_battery/parameters/poll_interval" is required.
> >> >>
> >> >> Any thoughts on this?
> >> >
> >> > I'd say  echo value >
> >> > /sys/module/bq27xxx_battery/parameters/poll_interval .. is quite
> >> > adequate solution...?
> >> >
> >> > Alternatively, convince us that something else is useful for everyone,
> >> > and we can do the right thing (poll more often when battery is nearly
> >> > empty), automatically...
> >>
> >> Ok should have had the patchset set it per device, and not use the
> >> global poll_interval. Of need to add some logic to see if uses the
> >> global poll_interval or it's own setting.
> >>
> >> There are times where you could have multiple batteries connected to
> >> multiple fuel gauges, and want to up the polling interval on certain
> >> ones that are discharging at different rates.
> >>
> >> But of course I'll let you guys let me know if this seems useful at all.
> >
> > I agree per-device polling would be cleaner.
> >
> 
> Ok I'll work something up for RFC.
> 
> > But unless you have hardware with more than one bq27xxx, I'd avoid the
> > work...
> >
> > Now... its also possible that poll_interval should change itself
> > (within kernel) to do the right thing.
> >
> 
> True but that is state machine territory, but I'll worry about that later...

Do you actually have hardware with more than one bq27xxx?

Best regards,
									Pavel

-- 
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