From 4cb18728709683c91a5f6f8d5f337bfb498b089a Mon Sep 17 00:00:00 2001 From: "R.Durgadoss" Date: Wed, 27 Oct 2010 03:33:29 +0530 Subject: 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 Signed-off-by: Len Brown --- Documentation/ABI/stable/thermal-notification | 4 ++++ Documentation/thermal/sysfs-api.txt | 12 ++++++++++++ 2 files changed, 16 insertions(+) create mode 100644 Documentation/ABI/stable/thermal-notification (limited to 'Documentation') diff --git a/Documentation/ABI/stable/thermal-notification b/Documentation/ABI/stable/thermal-notification new file mode 100644 index 000000000000..9723e8b7aeb3 --- /dev/null +++ b/Documentation/ABI/stable/thermal-notification @@ -0,0 +1,4 @@ +What: A notification mechanism for thermal related events +Description: + This interface enables notification for thermal related events. + The notification is in the form of a netlink event. 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. -- cgit v1.2.3