diff options
| author | R.Durgadoss <durgadoss.r@intel.com> | 2010-10-27 03:33:29 +0530 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-01-12 00:08:35 -0500 |
| commit | 4cb18728709683c91a5f6f8d5f337bfb498b089a (patch) | |
| tree | 26edef8257934247a7b5fe74ac33d54e1a0ad71b /Documentation/thermal/sysfs-api.txt | |
| parent | e8a7e48bb248a1196484d3f8afa53bded2b24e71 (diff) | |
| download | linux-4cb18728709683c91a5f6f8d5f337bfb498b089a.tar.bz2 | |
thermal: Add event notification to thermal framework
This patch adds event notification support to the generic
thermal sysfs framework in the kernel. The notification is in the
form of a netlink event.
Signed-off-by: R.Durgadoss <durgadoss.r@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/thermal/sysfs-api.txt')
| -rw-r--r-- | Documentation/thermal/sysfs-api.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index cb3d15bc1aeb..b61e46f449aa 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -278,3 +278,15 @@ method, the sys I/F structure will be built like this: |---name: acpitz |---temp1_input: 37000 |---temp1_crit: 100000 + +4. Event Notification + +The framework includes a simple notification mechanism, in the form of a +netlink event. Netlink socket initialization is done during the _init_ +of the framework. Drivers which intend to use the notification mechanism +just need to call generate_netlink_event() with two arguments viz +(originator, event). Typically the originator will be an integer assigned +to a thermal_zone_device when it registers itself with the framework. The +event will be one of:{THERMAL_AUX0, THERMAL_AUX1, THERMAL_CRITICAL, +THERMAL_DEV_FAULT}. Notification can be sent when the current temperature +crosses any of the configured thresholds. |