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Date:      Mon, 11 Dec 2000 20:31:32 +0300
From:      "Artem Koutchine" <matrix@ipform.ru>
To:        "Keith Jones" <keithj@sse0691.bri.hp.com>
Cc:        <questions@freebsd.org>, <hardware@freebsd.org>
Subject:   Re: Power management control (programmatic)
Message-ID:  <001d01c06398$36137ec0$0c00a8c0@ipform.ru>
References:  <000e01c0638b$8086dd60$0c00a8c0@ipform.ru> <20001211171524.A45253@moose.bri.hp.com>

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Thanks for the reply.

Here is what man 4 apm states:

Disk spin-down, LCD backlight control, and power on demand have not
been supported on the current version.

(I have FreeBSD 4.2-stable.)

I guess that means that I CANNOT programmatically TURN OFF (PARK)
HDDs?

Regards,
Artem

----- Original Message -----
From: "Keith Jones" <keithj@sse0691.bri.hp.com>
To: "Artem Koutchine" <matrix@ipform.ru>
Cc: <questions@freebsd.org>; <hardware@freebsd.org>
Sent: Monday, December 11, 2000 8:15 PM
Subject: Re: Power management control (programmatic)


> The apm(4) manual page lists a bunch of ioctl's for power management,
which
> could be used against /dev/apm or /dev/apmctl (I assume). I'd go take a
look
> at the sources of apm/zzz(8) to see how they're actually implemented.
>
> Ta,
>
> Keith
>
> On Mon, Dec 11, 2000 at 07:00:32PM +0300, Artem Koutchine wrote:
> > Is there any programmatic interface which allows to turn on/off devices
> > (hdds any the whole PC)? I, i could probably access the device directly,
> > however
> > I don't know
> > 1) How to do it right
> > 2) The command
> > I hope there is some c library or maybe utility with source code.
> >
> > Regards,
> > Artem
> >
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-hardware" in the body of the message
>
> --
> Keith Jones
> E-Business Service Introduction, GBIT-EMEA (Bristol)
> E: keith_jones@non.hp.com
> T: [+44 117] 312-7602
>
> I don't speak for Hewlett-Packard.
>



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