SENSORS-DETECT(8)       (September 2013)        SENSORS-DETECT(8)

     NAME
          sensors-detect - detect hardware monitoring chips

     SYNOPSIS
          sensors-detect [ --auto ]

     DESCRIPTION
          sensors-detect is an interactive program that will walk you
          through the process of scanning your system for various
          hardware monitoring chips, or sensors, supported by libsen-
          sors(3), or more generally by the lm_sensors tool suite.

          sensors-detect will look for the following devices, in
          order:

          +o    Sensors embedded in CPUs, south bridges and memory con-
               trollers.

          +o    Sensors embedded in Super I/O chips.

          +o    Hardware monitoring chips accessed through ISA I/O
               ports.

          +o    Hardware monitoring chips reachable over the SMBus or
               more generally any I2C bus on your system.

          As the last two detection steps can cause trouble on some
          systems, they are normally not attempted if the second
          detection step led to the discovery of a Super I/O chip with
          complete hardware monitoring features.  However, the user is
          always free to ask for all detection steps if so is his/her
          wish. This can be useful if a given system has more than one
          hardware monitoring chip. Some vendors are known to do this,
          most notably Asus and Tyan.

     OPTIONS
          --auto
               Run in automatic, non-interactive mode. Assume default
               answers to all questions. Note that this isn't neces-
               sarily safe as the internal logic may lead to poten-
               tially dangerous probes being attempted. See the WARN-
               ING section below.

     WARNING
          sensors-detect needs to access the hardware for most of the
          chip detections.  By definition, it doesn't know which chips

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          are there before it manages to identify them. This means
          that it can access chips in a way these chips do not like,
          causing problems ranging from SMBus lockup to permanent
          hardware damage (a rare case, thankfully.)

          The authors made their best to make the detection as safe as
          possible, and it turns out to work just fine in most cases,
          however it is impossible to guarantee that sensors-detect
          will not lock or kill a specific system. So, as a rule of
          thumb, you should not run sensors-detect on production
          servers, and you should not run sensors-detect if can't
          afford replacing a random part of your system. Also, it is
          recommended to not force a detection step which would have
          been skipped by default, unless you know what you are doing.

     SEE ALSO
          sensors(1), libsensors(3)

     AUTHOR
          Frodo Looijaard and Jean Delvare

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