1 files changed, 31 insertions, 0 deletions

diff --git a/tools/power/cpupower/lib/sysfs.h b/tools/power/cpupower/lib/sysfs.h
new file mode 100644
index 000000000000..c76a5e0af501
--- /dev/null
+++ b/tools/power/cpupower/lib/sysfs.h
@@ -0,0 +1,31 @@
+/* General */
+extern unsigned int sysfs_cpu_exists(unsigned int cpu);
+
+/* CPUfreq */
+extern unsigned long sysfs_get_freq_kernel(unsigned int cpu);
+extern unsigned long sysfs_get_freq_hardware(unsigned int cpu);
+extern unsigned long sysfs_get_freq_transition_latency(unsigned int cpu);
+extern int sysfs_get_freq_hardware_limits(unsigned int cpu,
+                                        unsigned long *min, unsigned long *max);
+extern char *sysfs_get_freq_driver(unsigned int cpu);
+extern struct cpufreq_policy *sysfs_get_freq_policy(unsigned int cpu);
+extern struct cpufreq_available_governors *sysfs_get_freq_available_governors(
+        unsigned int cpu);
+extern struct cpufreq_available_frequencies *sysfs_get_available_frequencies(
+        unsigned int cpu);
+extern struct cpufreq_affected_cpus *sysfs_get_freq_affected_cpus(
+        unsigned int cpu);
+extern struct cpufreq_affected_cpus *sysfs_get_freq_related_cpus(
+        unsigned int cpu);
+extern struct cpufreq_stats *sysfs_get_freq_stats(unsigned int cpu,
+                                                unsigned long long *total_time);
+extern unsigned long sysfs_get_freq_transitions(unsigned int cpu);
+extern int sysfs_set_freq_policy(unsigned int cpu,
+                                struct cpufreq_policy *policy);
+extern int sysfs_modify_freq_policy_min(unsigned int cpu,
+                                        unsigned long min_freq);
+extern int sysfs_modify_freq_policy_max(unsigned int cpu,
+                                        unsigned long max_freq);
+extern int sysfs_modify_freq_policy_governor(unsigned int cpu, char *governor);
+extern int sysfs_set_frequency(unsigned int cpu,
+                        unsigned long target_frequency);