thermal: user_space gov: Add additional information in uevent (998d924b) · Commits · 戴 / test

Add additional properties: NAME= Thermal zone type TEMP= Temperature sample value TRIP= Violated trip index EVENT= The notification event (new temperature sample, trip violation trip changed) This is the additional information to what kobject_uevent already provides. So it will not impact existing user spaces. Signed-off-by:

Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by:

Zhang Rui <rui.zhang@intel.com>

drivers/thermal/user_space.c

+13 −2

Original line number	Diff line number	Diff line
		@@ -23,19 +23,30 @@
		*/

		#include <linux/thermal.h>

		#include <linux/slab.h>
		#include "thermal_core.h"

		/**
		* notify_user_space - Notifies user space about thermal events
		* @tz - thermal_zone_device
		* @trip - Trip point index
		*
		* This function notifies the user space through UEvents.
		*/
		static int notify_user_space(struct thermal_zone_device *tz, int trip)
		{
		char *thermal_prop[5];
		int i;

		mutex_lock(&tz->lock);
		kobject_uevent(&tz->device.kobj, KOBJ_CHANGE);
		thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", tz->type);
		thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", tz->temperature);
		thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=%d", trip);
		thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", tz->notify_event);
		thermal_prop[4] = NULL;
		kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, thermal_prop);
		for (i = 0; i < 4; ++i)
		kfree(thermal_prop[i]);
		mutex_unlock(&tz->lock);
		return 0;
		}

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