mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-15 21:05:08 +00:00
4d846d260e
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
100 lines
3.3 KiB
Groff
100 lines
3.3 KiB
Groff
.\"
|
|
.\" SPDX-License-Identifier: BSD-2-Clause
|
|
.\"
|
|
.\" Copyright (c) 2023 Johannes Totz
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.Dd May 9, 2023
|
|
.Dt EFIWAKE 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm efiwake
|
|
.Nd manipulate the EFI wake timer
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Nm
|
|
.Fl d
|
|
.Nm
|
|
.Fl e Ar yyyy-mm-ddThh:mm:ss
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
reports the current value of, disables or enables the EFI wake timer that can
|
|
wake your machine from S3 sleep at a given time.
|
|
.Pp
|
|
If invoked without arguments, the current EFI time and the current value of the
|
|
wake timer will be printed, followed by an
|
|
.Em enabled
|
|
status and a
|
|
.Em pending
|
|
status.
|
|
EFI time is supposed to be in UTC.
|
|
Note that it can be out of sync with kernel time.
|
|
The pending status tells whether the wake timer fired recently; it is cleared
|
|
upon reading.
|
|
.Pp
|
|
If invoked with the
|
|
.Sy -d
|
|
option, the wake timer is reset and disabled.
|
|
.Pp
|
|
If invoked with the
|
|
.Sy -e
|
|
option, the wake timer is set to the given time and date.
|
|
If the date or time is invalid, an error is returned.
|
|
.Pp
|
|
The current EFI time is always printed.
|
|
.Sh EXAMPLES
|
|
Without arguments:
|
|
.Bd -literal -offset indent
|
|
# efiwake
|
|
Current EFI time: 2023-05-04T15:30:45
|
|
EFI wake time: 2023-05-04T10:00:00; enabled=0, pending=1
|
|
.Ed
|
|
.Pp
|
|
Disabling and resetting the wake timer:
|
|
.Bd -literal -offset indent
|
|
# efiwake -d
|
|
Current EFI time: 2023-05-04T15:32:16
|
|
EFI wake time: 2023-05-04T15:32:16; enabled=0, pending=0
|
|
.Ed
|
|
.Pp
|
|
Enabling the wake timer with a valid date:
|
|
.Bd -literal -offset indent
|
|
# efiwake -e 2023-05-04T15:35:00
|
|
Current EFI time: 2023-05-04T15:34:05
|
|
EFI wake time: 2023-05-04T15:35:00; enabled=1, pending=0
|
|
.Ed
|
|
.Pp
|
|
Trying to enable with an invalid date (there is no 31st of April):
|
|
.Bd -literal -offset indent
|
|
# efiwake -e 2023-04-31T15:35:00
|
|
Current EFI time: 2023-05-04T15:35:25
|
|
efiwake: cannot enable EFI wake time: Invalid argument
|
|
.Ed
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The tool and manual page were written by
|
|
.An Johannes Totz Aq Mt jo@bruelltuete.com .
|
|
.Sh BUGS
|
|
The quality of EFI implementations differs widely.
|
|
Corruption of the wake-up date has been observed on real hardware.
|