From owner-freebsd-hackers  Mon Jul 17 12:14:35 2000
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To: Hajimu UMEMOTO <ume@mahoroba.org>
Subject: Re: sysctl interface for apm? 
Cc: nsayer@freebsd.org, nsayer@sftw.com, freebsd-hackers@freebsd.org
In-reply-to: Your message of "Tue, 18 Jul 2000 03:35:14 +0900."
		<20000718.033514.59474907.ume@mahoroba.org> 
References: <20000718.033514.59474907.ume@mahoroba.org>  <1884.963737703@critter.freebsd.dk> <200007171753.LAA62543@harmony.village.org> <39734D36.5FC7DDA@sftw.com> 
Date: Mon, 17 Jul 2000 13:14:24 -0600
From: Warner Losh <imp@village.org>
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In message <20000718.033514.59474907.ume@mahoroba.org> Hajimu UMEMOTO writes:
: nsayer> The "why bother" is easy -- one should not have to belong to group
: nsayer> operator to determine the current battery state. Too many things
: nsayer> already have to be sgid (at least) without making this another reason.
: I love this feature.

Don't worry, he's not going to change this feature.  I use it and will
fix it back if someone "breaks" it..

: nsayer> I took a middle ground. I have two ints, machdep.apm_battlevel
: nsayer> and machdep.apm_powerstate. The power state number is
: nsayer> -1 to 5 for unknown, critical, low, medium, high (which four imply
: nsayer> battery power), AC or charging (which two imply AC power).
: 
: Then, I cannot switch to use sysctl.  Actually, GKrellM requires
: ai_batt_stat, ai_acline, ai_batt_life and ai_batt_time members of
: struct apm_info.

Yes.  The right answer isn't to kludge this through a sysctl, but
instead it is to fix apm to that it is safe to make it world read
only.  Is there a way inside a ioctl to see if you have something open
for write access?

Warner


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