* /sys/class/power_supply/BAT0/ charge_ vs energy_
[not found] ` <CA+z-pWEtiW9Rc9yjXNZSc7daFRwDieYb3Bnxt6=m+G+k_ELL8g@mail.gmail.com>
@ 2012-01-09 11:31 ` Jamie Kitson
2012-01-09 12:10 ` Jamie Kitson
0 siblings, 1 reply; 7+ messages in thread
From: Jamie Kitson @ 2012-01-09 11:31 UTC (permalink / raw)
To: linux-acpi
Hi,
I have an issue with my Arch installation on an X220 laptop.
Linux jamie-laptop 3.1.5-1-ARCH #1 SMP PREEMPT Sat Dec 10 14:43:09 CET
2011 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel
GNU/Linux
If I boot with AC plugged in the /sys/class/power_supply/BAT0/
directory is populated with charge_*, but if I boot on battery the
directory is populated with energy_*.
Disconnecting/connecting the power after boot does not effect the file names.
Is this a bug or a feature? It makes scripts harder to write than necessary.
Thanks, Jamie
^ permalink raw reply [flat|nested] 7+ messages in thread* /sys/class/power_supply/BAT0/ charge_ vs energy_
2012-01-09 11:31 ` /sys/class/power_supply/BAT0/ charge_ vs energy_ Jamie Kitson
@ 2012-01-09 12:10 ` Jamie Kitson
2012-01-09 13:37 ` Matthew Garrett
0 siblings, 1 reply; 7+ messages in thread
From: Jamie Kitson @ 2012-01-09 12:10 UTC (permalink / raw)
To: linux-acpi
Hi,
I have an issue with my Arch installation on an X220 laptop.
Linux jamie-laptop 3.1.5-1-ARCH #1 SMP PREEMPT Sat Dec 10 14:43:09 CET
2011 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel
GNU/Linux
If I boot with AC plugged in the /sys/class/power_supply/BAT0/
directory is populated with charge_*, but if I boot on battery the
directory is populated with energy_*.
Disconnecting/connecting the power after boot does not effect the file names.
Is this a bug or a feature? It makes scripts harder to write than necessary.
Thanks, Jamie
ps, I really think
http://www.lesswatts.org/projects/acpi/mailing-lists.php needs
updating.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: /sys/class/power_supply/BAT0/ charge_ vs energy_
2012-01-09 12:10 ` Jamie Kitson
@ 2012-01-09 13:37 ` Matthew Garrett
2012-01-09 21:36 ` Jamie Kitson
0 siblings, 1 reply; 7+ messages in thread
From: Matthew Garrett @ 2012-01-09 13:37 UTC (permalink / raw)
To: Jamie Kitson; +Cc: linux-acpi
On Mon, Jan 09, 2012 at 12:10:00PM +0000, Jamie Kitson wrote:
> If I boot with AC plugged in the /sys/class/power_supply/BAT0/
> directory is populated with charge_*, but if I boot on battery the
> directory is populated with energy_*.
>
> Disconnecting/connecting the power after boot does not effect the file names.
>
> Is this a bug or a feature? It makes scripts harder to write than necessary.
It's the way Lenovo's firmware works. It's not clear why.
--
Matthew Garrett | mjg59@srcf.ucam.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: /sys/class/power_supply/BAT0/ charge_ vs energy_
2012-01-09 13:37 ` Matthew Garrett
@ 2012-01-09 21:36 ` Jamie Kitson
2012-01-09 21:39 ` Matthew Garrett
0 siblings, 1 reply; 7+ messages in thread
From: Jamie Kitson @ 2012-01-09 21:36 UTC (permalink / raw)
To: Matthew Garrett; +Cc: linux-acpi
Thanks for your reply. Is this something that is likely to be fixed?
On 9 January 2012 13:37, Matthew Garrett <mjg59@srcf.ucam.org> wrote:
> On Mon, Jan 09, 2012 at 12:10:00PM +0000, Jamie Kitson wrote:
>
>> If I boot with AC plugged in the /sys/class/power_supply/BAT0/
>> directory is populated with charge_*, but if I boot on battery the
>> directory is populated with energy_*.
>>
>> Disconnecting/connecting the power after boot does not effect the file names.
>>
>> Is this a bug or a feature? It makes scripts harder to write than necessary.
>
> It's the way Lenovo's firmware works. It's not clear why.
>
> --
> Matthew Garrett | mjg59@srcf.ucam.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: /sys/class/power_supply/BAT0/ charge_ vs energy_
2012-01-09 21:36 ` Jamie Kitson
@ 2012-01-09 21:39 ` Matthew Garrett
2012-01-10 14:30 ` Jamie Kitson
0 siblings, 1 reply; 7+ messages in thread
From: Matthew Garrett @ 2012-01-09 21:39 UTC (permalink / raw)
To: Jamie Kitson; +Cc: linux-acpi
On Mon, Jan 09, 2012 at 09:36:34PM +0000, Jamie Kitson wrote:
> Thanks for your reply. Is this something that is likely to be fixed?
You'd have to ask Lenovo. We report the statistics that the firmware
gives us.
--
Matthew Garrett | mjg59@srcf.ucam.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: /sys/class/power_supply/BAT0/ charge_ vs energy_
2012-01-09 21:39 ` Matthew Garrett
@ 2012-01-10 14:30 ` Jamie Kitson
2012-04-18 11:44 ` /sys/class/power_supply/BAT0/charge_ " Yoshi Rokuko
0 siblings, 1 reply; 7+ messages in thread
From: Jamie Kitson @ 2012-01-10 14:30 UTC (permalink / raw)
To: Matthew Garrett; +Cc: linux-acpi
Could we not have a new generic file (or two) in the directory to
state battery level as a percentage, and perhaps another for warning
level as a percentage?
On 9 January 2012 21:39, Matthew Garrett <mjg59@srcf.ucam.org> wrote:
> On Mon, Jan 09, 2012 at 09:36:34PM +0000, Jamie Kitson wrote:
>> Thanks for your reply. Is this something that is likely to be fixed?
>
> You'd have to ask Lenovo. We report the statistics that the firmware
> gives us.
>
> --
> Matthew Garrett | mjg59@srcf.ucam.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: /sys/class/power_supply/BAT0/charge_ vs energy_
2012-01-10 14:30 ` Jamie Kitson
@ 2012-04-18 11:44 ` Yoshi Rokuko
0 siblings, 0 replies; 7+ messages in thread
From: Yoshi Rokuko @ 2012-04-18 11:44 UTC (permalink / raw)
To: linux-acpi
Jamie Kitson <jamie <at> kitten-x.com> writes:
>
> Could we not have a new generic file (or two) in the directory to
> state battery level as a percentage, and perhaps another for warning
> level as a percentage?
that would be great indead! actually the first would suffice I think.
but this change of charge to energy and back is really a pain ...
^ permalink raw reply [flat|nested] 7+ messages in thread
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2012-01-09 11:31 ` /sys/class/power_supply/BAT0/ charge_ vs energy_ Jamie Kitson
2012-01-09 12:10 ` Jamie Kitson
2012-01-09 13:37 ` Matthew Garrett
2012-01-09 21:36 ` Jamie Kitson
2012-01-09 21:39 ` Matthew Garrett
2012-01-10 14:30 ` Jamie Kitson
2012-04-18 11:44 ` /sys/class/power_supply/BAT0/charge_ " Yoshi Rokuko
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