MIRRORS/linux-imx
1
0
Fork 0
mirror of https://github.com/nxp-imx/linux-imx.git synced 2025-12-18 08:26:08 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity
ce4f06dcbb
linux-imx/Documentation/hwmon/ibmaem
Darrick J. Wong 8070408b54 hwmon: (ibmaem) Automatically load on HC10 blade 
Enable auto-probing for the HC10 blade and amend the supported system
list.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-06-15 18:39:46 +02:00

1.4 KiB
Raw Blame History

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.