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/* 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);
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