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Re: [Libreboot] Classical (like Phoenix) BIOS menu

From: Joerg Albert
Subject: Re: [Libreboot] Classical (like Phoenix) BIOS menu
Date: Wed, 20 Apr 2016 18:50:30 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

On 20.04.2016 13:59, Denis 'GNUtoo' Carikli wrote:
> I vaguely remember that it also had some kind of i2c access to the > battery. 
> Maybe that could be achieved with free software, giving us > way more control 
> over the battery. At this point standard Linux > (battery) drivers or 
> Userspace(i2c-tools) tool would work with it.
This depends on the hardware. With Lenovo Thinkpads the i2c (aka SMBus) of the 
battery is connected to the
embedded controller only (H8S in older models), which also controls charging 
and is powered as soon as the
DC power supply is attached.

I guess you don't want more control over the battery but over the charger, e.g. 
to implement upper and lower limits for
the battery charge.


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