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| author | Durgadoss R <dugardoss.r@intel.com> | 2012-07-25 10:10:59 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2012-07-24 23:19:26 -0400 |
| commit | 27365a6c7d64a3bba22ee62109e4a071bbd7f933 (patch) | |
| tree | d8a5c1bf246171e2983b7f801b64a758fa6f62e3 /Documentation/thermal | |
| parent | c56f5c0342dfee11a1a13d2f5bb7618de5b17590 (diff) | |
| download | lwn-27365a6c7d64a3bba22ee62109e4a071bbd7f933.tar.gz lwn-27365a6c7d64a3bba22ee62109e4a071bbd7f933.zip | |
Thermal: Add Hysteresis attributes
The Linux Thermal Framework does not support hysteresis
attributes. Most thermal sensors, today, have a
hysteresis value associated with trip points.
This patch adds hysteresis attributes on a per-trip-point
basis, to the Thermal Framework. These attributes are
optionally writable.
Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/thermal')
| -rw-r--r-- | Documentation/thermal/sysfs-api.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index 4c105934c599..2ba4c9bb790a 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -121,6 +121,7 @@ Thermal zone device sys I/F, created once it's registered: |---mode: Working mode of the thermal zone |---trip_point_[0-*]_temp: Trip point temperature |---trip_point_[0-*]_type: Trip point type + |---trip_point_[0-*]_hyst: Hysteresis value for this trip point Thermal cooling device sys I/F, created once it's registered: /sys/class/thermal/cooling_device[0-*]: @@ -190,6 +191,11 @@ trip_point_[0-*]_type thermal zone. RO, Optional +trip_point_[0-*]_hyst + The hysteresis value for a trip point, represented as an integer + Unit: Celsius + RW, Optional + cdev[0-*] Sysfs link to the thermal cooling device node where the sys I/F for cooling device throttling control represents. |