nvram-wakeup(8) 						   NVRAM WakeUp 						   nvram-wakeup(8)

NAME

       nvram-wakeup - a (small) program that can read and write the WakeUp time in the BIOS.

SYNOPSIS

       nvram-wakeup  [-l|--syslog]  [-D|--debug]  [-A|--directisa]  [-N|--nowrite]  [-d|--disable]  [-s|--settime time] [-C|--configfile filename]
       [-I|--iwname string] [-v|--version] [-h|--help]

DESCRIPTION

       nvram-wakeup is a (small) program that can read and write the WakeUp time in the BIOS (via /dev/nvram on kernels >= 2.4.6 or  using  direct
       I/O).  On this WakeUp time the computer will be powered on automatically from the soft-off state.

OPTIONS

       If run without options, nvram-wakeup will read the current wakeup settings from the NVRAM and print them on stdout.

       -l, --syslog
	      This  option will let nvram-wakeup log all output via syslogd to the system log instead of stdout/stderr.  This option should always
	      be the first one.

       -D, --debug
	      This option enables printing debug messages.

       -A, --directisa
	      Use direct I/O port access to access the nvram instead of /dev/nvram.   This  option  must  be  used  if	the  configuration  option
	      upper_method is set. The device /dev/rtc is still used.

	      WARNING:	If  you  use  the  option --directisa and some other programm tries to access nvram and/or rtc at the same time, you might
	      screw up all your nvram (i.e. all CMOS settings).

       -N, --nowrite
	      This option disables writing into the nvram and rtc devices. But all the values for the bytes are calculated. Write them down and go
	      set  the	same date/time via BIOS Setup, run nvram-wakeup and see if the values  you written down  correspond to	the values  set by
	      the BIOS.

       -s time, --settime=time
	      Specify the time on which the computer should be up and running. The time is specified as a time_t value, i.e.,  number  of  seconds
	      since epoch (Jan 1 1970, 00:00:00).

	      See EXAMPLES below on how to set a "human readable" wakeup time.

	      Set time to 0 to disable the wakeup feature.

	      You can specify multiple -s|--settime options on the command line, as far as they all have the same time value. See EXAMPLES below.

       -d, --disable
	      A synonym for --settime=0

       -C filename, --configfile=filename
	      Read mainboard configuration from configuration file filename.

	      See nvram-wakeup.conf(5) for information on the syntax of the file.

	      See BOARD CONFIGURATION below for general information on getting board configurations.

       -I name, --iwname=name
	      If  the DMI entries of your mainboard are broken, you may specify a DMI infowriter name here. (it's the name of one of the functions
	      from nvram-wakeup-mb.c)

	      If you specify --configfile as well as the --iwname option, then --iwname is ignored.

	      See BOARD CONFIGURATION below for general information on getting board configurations.

       -w minutes, --wakeupbefore=minutes
	      Specify how many minutes before the programmed wakeuptime the computer should wake up.

	      The default is to start 5 minutes before the programmed wakeup time.

       -h, --help
	      Print a help message and exit.

       -v, --version
	      Display version and author information.

BOARD CONFIGURATION

       By default, the mainboard is autodetected by reading DMI information from the BIOS.  If the DMI entries are broken,  you  can  specify  the
       name  of  the infowriter to be used with the --iwname option. This only works if the board configuration is aleready compiled into the pro-
       gram.  The list of existing infowriters can be found in the source.

       Example: On my Biostar M6VCG the whole DMI entry is broken (maybe a BIOS update would help, but I never tried it), but the configuration of
       the  board  is  known, so only the autodetection doesn't work. Thus look up (in boards.yaml) the name of the infowriter to beused, which is
       'bio_m6vcg' and call

	      nvram-wakeup --iwname bio_m6vcg

       If nvram-wakeup doesn't know anything about your board, you can put the board configuration into a file and pass  the  file  name  via  the
       --configfile option to nvram-wakeup.  Look nvram-wakeup.conf(5) for more information on the configuration file syntax.

       If you specify --configfile as well as the --iwname option, then --iwname is ignored.

EXAMPLES

       You can specify multiple -d or -s options at the command line,  but they must specify the same time, e.g.

	      nvram-wakeup --settime=0 -s0 -s 0 -d -ddds0  # is O.K.
	      nvram-wakeup -s1002722247 -s1002722247	   # is O.K.
	      nvram-wakeup -s1002722247 -s1002722248	   # is not O.K.
	      nvram-wakeup -s1002722247 --disable	   # is not O.K.

       If you want the machine to be up and running in 20 minutes, call

	      nvram-wakeup -s $((`date +%s` + 20 * 60))

       If you want the machine to be up and running at 18:30 today, call

	      nvram-wakeup -s `date +%s -d "18:30"`

       Note that this is really "today" so if you run this after 18:30, the time will be in the past.

       If you want the machine to be up and running on a particular day, at a particular time, say at 18:30 on Apr. 23rd, call

	      nvram-wakeup -s `date +%s -d "Apr 23 18:30"`

       For "tomorrow" you can use something like that:

	      nvram-wakeup -s $((`date +%s -d "18:30"` + 60*60*24))

EXIT STATUS

       0      Successful program execution. The new date and time were set successfully.

       1      Successful program execution. The computer must be rebooted for the changes to take effect.

       2      An error occured. Something went wrong.

FILES

       /dev/nvram
	      NVRAM character device. This one is used for reading/writing the nvram values if the command line option --directisa is not used.

       /dev/rtc
	      RTC character device. This one is used to determine if the RTC clock is running localtime or UTC/GMT. Furthermore, some motherboards
	      use the RTC alarm time for the wakeup feature.

       /dev/mem
	      Memory character device. This one is used to get DMI information for board autodetection.

       nvram-wakeup.conf
	      Configuration file for a mainboard not supported out-of-the-box. See nvram-wakeup.conf(5) for information on the syntax of the file.

SEE ALSO

       nvram-wakeup.conf(5)

HOMEPAGE

       http://sf.net/projects/nvram-wakeup/

AUTHOR

       Written by Sergei Haller <Sergei.Haller@math.uni-giessen.de>.

REPORTING BUGS

       Report bugs at the bug tracking system (see HOMEPAGE) or on the mailing list nvram-wakeup-devel@lists.sourceforge.net

COPYRIGHT

       Copyright (C) 2001-2004 Sergei Haller.

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as  published	by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This  program  is  distributed  in  the	hope  that  it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free  Software  Foundation,
       Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

Linux								    May 08 2004 						   nvram-wakeup(8)