NAME

       nutupsdrv - generic manual for unified NUT drivers

SYNOPSIS

       nutupsdrv -h

       nutupsdrv [OPTIONS]

DESCRIPTION

       nutupsdrv is not actually a driver. This is a combined man page for the shared code that
       is the core of many drivers within the Network UPS Tools package.

       For information on the specific drivers, see their individual man pages.

       UPS drivers provide a communication channel between the physical UPS hardware and the
       upsd(8) server. The driver is responsible for translating the native protocol of the UPS
       to the common format used by the rest of this package.

       The core has two modes of operation which are determined by the command line switches. In
       the normal mode, the driver will periodically poll the UPS for its state and parameters.
       The results of this command is presented to upsd. The driver will also handle setting
       variables and instant commands if available.

       The driver can also instruct the UPS to shut down the load, possibly after some delay.
       This mode of operation is intended for cases when it is known that the UPS is running out
       of battery power and the systems attached must be turned off to ensure a proper reboot
       when power returns.

           Note
           You probably don’t want to use any of these options directly. You should use
           upsdrvctl(8) to control your drivers, and ups.conf(5) to configure them. The rest of
           this manual describes options and parameters that generally are not needed by normal
           users.

OPTIONS

       -h
           Display a help message without doing anything else. This will also list possible
           values for -x in that driver, and other help text that the driver’s author may have
           provided.

       -a id
           Autoconfigure this driver using the id section of ups.conf(5).  This argument is
           mandatory when calling the driver directly.

       -D
           Raise the debugging level. Use this multiple times to see more details. Running a
           driver in debug mode will prevent it from backgrounding after startup. It will keep on
           logging information to the console until it receives a SIGINT (usually Ctrl-C) or
           SIGTERM signal.

           The level of debugging needed depends both on the driver and the problem you’re trying
           to diagnose. Therefore, first explain the problem you have with a driver to a
           developer/maintainer, before sending them debugging output. More often than not, if
           you just pick a level, the output may be either too limited or too verbose to be of
           any use.

       -q
           Raise log level threshold. Use this multiple times to log more details.

           The debugging comment above also applies here.

       -i interval
           Set the poll interval for the device.

       -V
           Print only version information, then exit.

       -L
           Print a parseable list of driver variables. Mostly useful for configuration wizard
           programs.

       -k
           ("Kill" power) Forced shutdown mode. The UPS will power off the attached load, if
           possible.

           You should use upsdrvctl shutdown whenever possible instead of calling this directly.

       -r directory
           The driver will chroot(2) to directory during initialization. This can be useful when
           securing systems.

           In addition to the state path, many systems will require /dev/null to exist within
           directory for this to work. The serial ports are opened before the chroot call, so you
           do not need to create them inside the jail. In fact, it is somewhat safer if you do
           not.

       -u username
           If started as root, the driver will setuid(2) to the user id associated with username.

           If you do not specify this value and start it as root, the driver will switch to the
           default value that was compiled into the code. This is typically nobody, and is far
           from ideal.

       -x var=val
           Define a variable called var with the value of var in the driver. This varies from
           driver to driver - see the specific man pages for more information.

           This is like setting var=val in ups.conf(5), but -x overrides any settings from that
           file.

DIAGNOSTICS

       Information about the startup process is printed to stdout. Additional messages after that
       point are available in the syslog. After upsd(8) starts, the UPS clients such as upsc(8)
       can be used to query the status of an UPS.

PROGRAM CONTROL

       You should always use upsdrvctl(8) to control the drivers. While drivers can be started by
       hand for testing purposes, it is not recommended for production use.

FILES

       ups.conf
           Required configuration file. This contains all details on which drivers to start and
           where the hardware is attached.

BUGS

       Some of the drivers may have bugs. See their manuals for more information.

SEE ALSO

       Server: upsd(8)

       Clients: upsc(8), upscmd(8), upsrw(8), upslog(8), upsmon(8)

       CGI programs: upsset.cgi(8), upsstats.cgi(8), upsimage.cgi(8)

       Driver control: upsdrvctl(8)

       Drivers: al175(8) apcsmart(8), bcmxcp(8), bcmxcp_usb(8), belkin(8), belkinunv(8),
       bestfcom(8), bestuferrups(8), bestups(8), blazer_ser(8), blazer_usb(8), cyberpower(8),
       dummy-ups(8), etapro(8), everups(8), gamatronic(8), genericups(8), isbmex(8), liebert(8),
       masterguard(8), metasys(8), mge-shut(8), mge-utalk(8), mge-xml(8), newmge-shut(8),
       nitram(8), nutdrv_qx(8), oneac(8), optiups(8), powercom(8), powerman-pdu(8),
       powerpanel(8), rhino(8), richcomm_usb(8), safenet(8), snmp-ups(8), solis(8), tripplite(8),
       tripplitesu(8), tripplite_usb(8), usbhid-ups(8), upscode2(8), victronups(8)

       Internet resources: The NUT (Network UPS Tools) home page: http://www.networkupstools.org/