diff options
| author |   Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2007-07-18 23:45:46 -0300 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2007-07-21 23:50:05 -0400 |
| commit | 3d6f99ca00ccf861305fd8630a21f2e696886708 (patch) | |
| tree | 9c22295bbcccf8325cc690c691cf16f28bfeb3a4 /Documentation | |
| parent | ACPI: thinkpad-acpi: make sure DSDT TMPx readings don't return +128 (diff) | |
| download | linux-dev-3d6f99ca00ccf861305fd8630a21f2e696886708.tar.xz linux-dev-3d6f99ca00ccf861305fd8630a21f2e696886708.zip | |
ACPI: thinkpad-acpi: make EC-based thermal readings non-experimental
Reading the 16 thermal sensors directly from the EC has been stable for
about one year, in all supported ThinkPad models. Remove its
"experimental" label.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/thinkpad-acpi.txt | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt index 5d827ded34d1..3eb949e14a02 100644 --- a/Documentation/thinkpad-acpi.txt +++ b/Documentation/thinkpad-acpi.txt @@ -710,23 +710,15 @@ Temperature sensors procfs: /proc/acpi/ibm/thermal sysfs device attributes: (hwmon) temp*_input -Most ThinkPads include six or more separate temperature sensors but -only expose the CPU temperature through the standard ACPI methods. -This feature shows readings from up to eight different sensors on older -ThinkPads, and it has experimental support for up to sixteen different -sensors on newer ThinkPads. - -EXPERIMENTAL: The 16-sensors feature is marked EXPERIMENTAL because the -implementation directly accesses hardware registers and may not work as -expected. USE WITH CAUTION! To use this feature, you need to supply the -experimental=1 parameter when loading the module. When EXPERIMENTAL -mode is enabled, reading the first 8 sensors on newer ThinkPads will -also use an new experimental thermal sensor access mode. +Most ThinkPads include six or more separate temperature sensors but only +expose the CPU temperature through the standard ACPI methods. This +feature shows readings from up to eight different sensors on older +ThinkPads, and up to sixteen different sensors on newer ThinkPads. For example, on the X40, a typical output may be: temperatures: 42 42 45 41 36 -128 33 -128 -EXPERIMENTAL: On the T43/p, a typical output may be: +On the T43/p, a typical output may be: temperatures: 48 48 36 52 38 -128 31 -128 48 52 48 -128 -128 -128 -128 -128 The mapping of thermal sensors to physical locations varies depending on |