1 #ifndef __CPUPOWER_HELPERS_SYSFS_H__
2 #define __CPUPOWER_HELPERS_SYSFS_H__
3 
4 #define PATH_TO_CPU "/sys/devices/system/cpu/"
5 #define MAX_LINE_LEN 255
6 #define SYSFS_PATH_MAX 255
7 
8 extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen);
9 
10 extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu,
11 						unsigned int idlestate);
12 extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu,
13 					unsigned int idlestate);
14 extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu,
15 						unsigned int idlestate);
16 extern char *sysfs_get_idlestate_name(unsigned int cpu,
17 				unsigned int idlestate);
18 extern char *sysfs_get_idlestate_desc(unsigned int cpu,
19 				unsigned int idlestate);
20 extern int sysfs_get_idlestate_count(unsigned int cpu);
21 
22 extern char *sysfs_get_cpuidle_governor(void);
23 extern char *sysfs_get_cpuidle_driver(void);
24 
25 extern int sysfs_get_sched(const char *smt_mc);
26 extern int sysfs_set_sched(const char *smt_mc, int val);
27 
28 #endif /* __CPUPOWER_HELPERS_SYSFS_H__ */
29