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authorZhang, Rui <rui.zhang@intel.com>2008-03-18 10:40:29 +0800
committerLen Brown <len.brown@intel.com>2008-03-18 01:21:21 -0400
commit6d7f014e55c5227220da1f021c518487fcfd585a (patch)
tree1dfcb4d1b7554a809e0d14c8dc41959e2e7881f6
parent91f57fa1215952af579f304821a15cc6c656042c (diff)
downloadop-kernel-dev-6d7f014e55c5227220da1f021c518487fcfd585a.zip
op-kernel-dev-6d7f014e55c5227220da1f021c518487fcfd585a.tar.gz
thermal: re-document thermal units
From: Zhang Rui <rui.zhang@intel.com> (reverting the previous sysfs patch also reverted a fix to the thermal units documentation, which is restored by this commit) The generic thermal driver shows temperature in millidegree Celsius. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
-rw-r--r--Documentation/thermal/sysfs-api.txt22
1 files changed, 11 insertions, 11 deletions
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index ba9c2da..d9f28be 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -143,10 +143,10 @@ type Strings which represent the thermal zone type.
This is given by thermal zone driver as part of registration.
Eg: "ACPI thermal zone" indicates it's a ACPI thermal device
RO
- Optional
+ Required
temp Current temperature as reported by thermal zone (sensor)
- Unit: degree Celsius
+ Unit: millidegree Celsius
RO
Required
@@ -163,7 +163,7 @@ mode One of the predefined values in [kernel, user]
charge of the thermal management.
trip_point_[0-*]_temp The temperature above which trip point will be fired
- Unit: degree Celsius
+ Unit: millidegree Celsius
RO
Optional
@@ -193,7 +193,7 @@ type String which represents the type of device
eg. For memory controller device on intel_menlow platform:
this should be "Memory controller"
RO
- Optional
+ Required
max_state The maximum permissible cooling state of this cooling device.
RO
@@ -219,16 +219,16 @@ the sys I/F structure will be built like this:
|thermal_zone1:
|-----type: ACPI thermal zone
- |-----temp: 37
+ |-----temp: 37000
|-----mode: kernel
- |-----trip_point_0_temp: 100
+ |-----trip_point_0_temp: 100000
|-----trip_point_0_type: critical
- |-----trip_point_1_temp: 80
+ |-----trip_point_1_temp: 80000
|-----trip_point_1_type: passive
- |-----trip_point_2_temp: 70
- |-----trip_point_2_type: active[0]
- |-----trip_point_3_temp: 60
- |-----trip_point_3_type: active[1]
+ |-----trip_point_2_temp: 70000
+ |-----trip_point_2_type: active0
+ |-----trip_point_3_temp: 60000
+ |-----trip_point_3_type: active1
|-----cdev0: --->/sys/class/thermal/cooling_device0
|-----cdev0_trip_point: 1 /* cdev0 can be used for passive */
|-----cdev1: --->/sys/class/thermal/cooling_device3
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