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57 lines
1.7 KiB
57 lines
1.7 KiB
/* |
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* user_space.c - A simple user space Thermal events notifier |
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* |
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* Copyright (C) 2012 Intel Corp |
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* Copyright (C) 2012 Durgadoss R <durgadoss.r@intel.com> |
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* |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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* |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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*/ |
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#include <linux/thermal.h> |
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#include "thermal_core.h" |
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/** |
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* notify_user_space - Notifies user space about thermal events |
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* @tz - thermal_zone_device |
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* |
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* This function notifies the user space through UEvents. |
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*/ |
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static int notify_user_space(struct thermal_zone_device *tz, int trip) |
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{ |
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mutex_lock(&tz->lock); |
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kobject_uevent(&tz->device.kobj, KOBJ_CHANGE); |
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mutex_unlock(&tz->lock); |
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return 0; |
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} |
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static struct thermal_governor thermal_gov_user_space = { |
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.name = "user_space", |
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.throttle = notify_user_space, |
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}; |
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int thermal_gov_user_space_register(void) |
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{ |
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return thermal_register_governor(&thermal_gov_user_space); |
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} |
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void thermal_gov_user_space_unregister(void) |
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{ |
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thermal_unregister_governor(&thermal_gov_user_space); |
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} |
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