diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:19:53 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:19:53 +0200 |
commit | 064a32d82c20cdcb0119a8b316eb520608d8c647 (patch) | |
tree | c67d534bd4458b1482c11f11c724fe93beca4f80 /Documentation/hwmon/ibmaem | |
parent | 0327318445d55808991a63137cfb698a90ab6adf (diff) | |
parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) |
Merge branch 'linus' into x86/memtesttip-x86-memtest-2008-06-16_09.19_Mon
Diffstat (limited to 'Documentation/hwmon/ibmaem')
-rw-r--r-- | Documentation/hwmon/ibmaem | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/hwmon/ibmaem b/Documentation/hwmon/ibmaem new file mode 100644 index 000000000000..2fefaf582a43 --- /dev/null +++ b/Documentation/hwmon/ibmaem @@ -0,0 +1,37 @@ +Kernel driver ibmaem +====================== + +Supported systems: + * Any recent IBM System X server with Active Energy Manager support. + This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2, + x3950 M2, and certain 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 Active Energy Manager software. Setting the power cap from the host +is not currently supported. |