Kernel driver ibmaem
  ======================

  This driver talks to the IBM Systems Director Active Energy Manager, known
  henceforth as AEM.

  Supported systems:

    * Any recent IBM System X server with AEM support.

      This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,

      x3950 M2, and certain HC10/HS2x/LS2x/QS2x blades.  The IPMI host interface

      driver ("ipmi-si") needs to be loaded for this driver to do anything.
      Prefix: 'ibmaem'
      Datasheet: Not available
  
  Author: Darrick J. Wong
  
  Description
  -----------

  This driver implements sensor reading support for the energy and power meters
  available on various IBM System X hardware through the BMC.  All sensor banks
  will be exported as platform devices; this driver can talk to both v1 and v2
  interfaces.  This driver is completely separate from the older ibmpex driver.

  The v1 AEM interface has a simple set of features to monitor energy use.  There
  is a register that displays an estimate of raw energy consumption since the
  last BMC reset, and a power sensor that returns average power use over a
  configurable interval.

  The v2 AEM interface is a bit more sophisticated, being able to present a wider
  range of energy and power use registers, the power cap as set by the AEM
  software, and temperature sensors.

  
  Special Features
  ----------------

  The "power_cap" value displays the current system power cap, as set by the AEM
  software.  Setting the power cap from the host is not currently supported.