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-rw-r--r--drivers/cpufreq/cpufreq.c9
-rw-r--r--include/linux/cpufreq.h10
2 files changed, 18 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index bbd5c21..4da2844 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -686,6 +686,9 @@ static struct attribute *default_attrs[] = {
NULL
};
+struct kobject *cpufreq_global_kobject;
+EXPORT_SYMBOL(cpufreq_global_kobject);
+
#define to_policy(k) container_of(k, struct cpufreq_policy, kobj)
#define to_attr(a) container_of(a, struct freq_attr, attr)
@@ -1935,7 +1938,11 @@ static int __init cpufreq_core_init(void)
per_cpu(policy_cpu, cpu) = -1;
init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
}
+
+ cpufreq_global_kobject = kobject_create_and_add("cpufreq",
+ &cpu_sysdev_class.kset.kobj);
+ BUG_ON(!cpufreq_global_kobject);
+
return 0;
}
-
core_initcall(cpufreq_core_init);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 1610427..44717eb 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -65,6 +65,9 @@ static inline int cpufreq_unregister_notifier(struct notifier_block *nb,
struct cpufreq_governor;
+/* /sys/devices/system/cpu/cpufreq: entry point for global variables */
+extern struct kobject *cpufreq_global_kobject;
+
#define CPUFREQ_ETERNAL (-1)
struct cpufreq_cpuinfo {
unsigned int max_freq;
@@ -274,6 +277,13 @@ struct freq_attr {
ssize_t (*store)(struct cpufreq_policy *, const char *, size_t count);
};
+struct global_attr {
+ struct attribute attr;
+ ssize_t (*show)(struct kobject *kobj,
+ struct attribute *attr, char *buf);
+ ssize_t (*store)(struct kobject *a, struct attribute *b,
+ const char *c, size_t count);
+};
/*********************************************************************
* CPUFREQ 2.6. INTERFACE *