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Date:      Tue, 26 Jul 2005 12:11:36 -0700
From:      Nate Lawson <nate@root.org>
To:        Jeremie Le Hen <jeremie@le-hen.org>
Cc:        acpi@freebsd.org, Marcin Jessa <lists@yazzy.org>, freebsd-current@freebsd.org
Subject:   Re: acpi battery rework patch
Message-ID:  <42E68AE8.2050600@root.org>
In-Reply-To: <20050726135149.GG1610@obiwan.tataz.chchile.org>
References:  <d9175cad050723030041dd7387@mail.gmail.com> <20050723133819.36efb537.lists@yazzy.org> <42E29CAA.1020007@root.org> <d9175cad0507232047160cc758@mail.gmail.com> <20050724215818.55f951ae.lists@yazzy.org> <42E42F10.3030309@root.org> <20050725091221.106a0368.lists@yazzy.org> <42E5134F.706@root.org> <20050726011943.0abe83a0.lists@yazzy.org> <42E5C96C.9060105@root.org> <20050726135149.GG1610@obiwan.tataz.chchile.org>

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Jeremie Le Hen wrote:
> Hi Nate,
> 
> 
>>>- Battery:
>>>hw.acpi.battery.life: 87
>>>hw.acpi.battery.time: 103
>>>hw.acpi.battery.state: 1
>>
>>Completely fine.  Time should be -1 (unknown) while on AC power.  And 
>>state is "discharging" when on battery.
>>
>>
>>>- AC:
>>>hw.acpi.battery.life: 70
>>>hw.acpi.battery.time: -1
>>>hw.acpi.battery.state: 2
>>
>>This is fine.  On AC power and state is charging.
>>
>>
>>>- Battery:
>>>hw.acpi.battery.life: 70
>>>hw.acpi.battery.time: 125
>>>hw.acpi.battery.state: 1
>>
>>Time is valid and state is "discharging".
> 
> 
> Where are these states documented ?  What do you think of the idea of
> using the following as a description for the hw.acpi.battery.state
> sysctl ?
>     "0: battery full, 1: discharging, 2: charging"

Currently in the acpiio.h header.  Changing it to a string is a problem 
since multiple flags can be active at once, i.e. "discharging" + 
"critical".  The apm(8) utility does a good job of parsing these so 
perhaps the same code could be used in the sysctl.

-- 
Nate



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