Blame view

kernel/linux-imx6_3.14.28/Documentation/hwmon/ibmaem 1.44 KB
6b13f685e   김민수   BSP 최초 추가
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
  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.