cdev_update
TRACE_EVENT(cdev_update,
enabled_ops[THERMAL_GENL_EVENT_CDEV_STATE_UPDATE] = !!ops->cdev_update;
return ops->cdev_update(nla_get_u32(attrs[THERMAL_GENL_ATTR_CDEV_ID]),
int (*cdev_update)(int cdev_id, int cur_state, void *arg);
.events.cdev_update = cdev_update,