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Date:      Fri, 12 Jan 2001 11:01:10 -0800 (PST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org>
Cc:        hackers@FreeBSD.org
Subject:   Re: CFR: Generalized power-management interface
Message-ID:  <XFMail.010112110110.jhb@FreeBSD.org>
In-Reply-To: <20010113034023K.iwasaki@jp.FreeBSD.org>

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On 12-Jan-01 Mitsuru IWASAKI wrote:
> Hi,
> 
>> > I'll get device major number for /dev/power and commit them within a
>> > few days if no objection.
>> 
>> One thing that I was talking about with Mike Smith is that perhaps instead
>> of
>> having a /dev/power just for power management stuff we should be a bit more
>> generic and have a /dev/health used for anything related to the machine's
>> "health"?  This could include power management, thermal zones, etc.  BTW,
>> the
> 
> I'm not sure if /dev/health is better but I think having common API
> for the machine's health is good thing.  How about having /dev/power,
> /dev/thermal or whatever related with machine's health as abstracted
> layers, and creating API libraries for each subsystems like libpower,
> then providing libhealth as full-set API for the applications?

It was just an idea to think about is all. :)  However you do it will probably
be fine.  I'm not really working on this code enough to make too many
suggestions right now. :)

>> battery status doesn't work on my laptop unfortunately, but that is because
>> I
>> have to have the Super IO (and thus all GPIO) disabled to get ACPI to boot.
>> :(
> 
> Is that related with embedded controller too?

Yes.  I need to figure out how ACPI_DEBUG works so I can dimp debugging info
and find out where it hangs when I don't disable the SIO_ controller.

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/


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