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88 lines
2 KiB
Groff
88 lines
2 KiB
Groff
.\" LP (Laptop Package)
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.\"
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.\" Copyright (c) 1994 by HOSOKAWA, Tatsumi <hosokawa@mt.cs.keio.ac.jp>
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.\"
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.\" This software may be used, modified, copied, and distributed, in
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.\" both source and binary form provided that the above copyright and
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.\" these terms are retained. Under no circumstances is the author
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.\" responsible for the proper functioning of this software, nor does
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.\" the author assume any responsibility for damages incurred with its
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.\" use.
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.Dd November 1, 1994
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.Dt APM 8
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.Os
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.Sh NAME
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.Nm apm, zzz
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.Nd control the APM BIOS and display its information
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.Sh SYNOPSIS
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.Nm apm
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.Op Fl z
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.Op Fl b
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.Op Fl a
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.Op Fl l
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.Pp
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.Nm zzz
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.Sh DESCRIPTION
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.Nm apm
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controls the Intel / Microsoft APM (Advanced Power Management) BIOS and
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displays the current status of APM on laptop PCs.
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.Nm zzz
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suspends the system by controlling APM.
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.Pp
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The following options are available for
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.Nm apm
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(no options are available for
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.Nm zzz.
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)
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If no options are specified,
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.Nm apm
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displays information and current status of APM in verbose mode.
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.Bl -tag -width indent
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.It Fl z
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Suspend the system. It is equivalent to
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.Nm zzz.
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.Pp
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.It Fl b
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Display an integer value reflecting the current battery status.
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The values 0, 1, 2, 3, correspond to the
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.Dq high
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status,
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.Dq low
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status,
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.Dq critical
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status,
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.Dq charging
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status respectively.
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.Pp
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.It Fl a
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Display the current AC-line status as an integer value. The values
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0 and 1 correspond to the
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.Dq off-line
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state and
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.Dq on-line
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state, respectively.
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.Pp
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.It Fl l
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Display the remaining battery percentage. If your laptop does not
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support this function, 255 is displayed.
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.Sh BUGS
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Some APM implementations do not support parameters needed by
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.Nm apm.
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On such systems,
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.Nm apm
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displays them as unknown.
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.Pp
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Some APM implementations cannot handle events such as pushing the
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power button or closing the cover. On such implementations, the system
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.Ar must
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be suspended
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.Ar only
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by using
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.Nm apm
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or
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.Nm zzz.
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.Sh SEE ALSO
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.Xr apm 4 ,
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.Xr apmconf 8
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.Sh AUTHOR
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HOSOKAWA, Tatsumi <hosokawa@mt.cs.keio.ac.jp> (Keio Univ., Japan)
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