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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2016-08-26 16:21:17 -0700 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2016-09-27 14:37:10 +0800 |
| commit | 998d924b712896c540c76c679fc7d53d6a880d5d (patch) | |
| tree | a2d0bdc5e8ea442ce74cd4d4fdb9a941c9029a5f /drivers/thermal | |
| parent | 0e70f466fb910ae54c4c71243b99385129e93feb (diff) | |
| download | linux-rpi3-998d924b712896c540c76c679fc7d53d6a880d5d.tar.gz linux-rpi3-998d924b712896c540c76c679fc7d53d6a880d5d.tar.bz2 linux-rpi3-998d924b712896c540c76c679fc7d53d6a880d5d.zip | |
thermal: user_space gov: Add additional information in uevent
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>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/user_space.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/thermal/user_space.c b/drivers/thermal/user_space.c index 10adcddc8821..c908150c268d 100644 --- a/drivers/thermal/user_space.c +++ b/drivers/thermal/user_space.c @@ -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; } |