cpupower/lib/cpuidle.c

16 #include "cpuidle.h"
20  * helper function to check whether a file under "../cpuX/cpuidle/stateX/" dir
37 	snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s",  in cpuidle_state_file_exists()
46  * fname is a relative path under "cpuX/cpuidle/stateX/" dir
60 	snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s",  in cpuidle_state_read_file()
81  * fname is a relative path under "../cpuX/cpuidle/cstateY/" dir
95 	snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s",  in cpuidle_state_write_file()
282  * Zero if cpuidle does not export any C-states
291 	snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpuidle");  in cpuidle_state_count()
295 	snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpu%u/cpuidle/state0", cpu);  in cpuidle_state_count()
301 			 "cpu%u/cpuidle/state%d", cpu, idlestates);  in cpuidle_state_count()
308 /* CPUidle general /sys/devices/system/cpu/cpuidle/ sysfs access ********/
312  * fname is a relative path under "cpu/cpuidle/" dir
319 	snprintf(path, sizeof(path), PATH_TO_CPU "cpuidle/%s", fname);  in sysfs_cpuidle_read_file()
379 /* CPUidle idlestate specific /sys/devices/system/cpu/cpuX/cpuidle/ access */