perf_pmu__scan_file
ret = perf_pmu__scan_file(pmu, path, "%x", &hash);
scan = perf_pmu__scan_file(pmu, pmu_path, "%llx", val);
scan = perf_pmu__scan_file(pmu, pmu_path, "%d", &val);
if (perf_pmu__scan_file(pmu, "caps/min_interval", "%lu", &val) != 1)
if (perf_pmu__scan_file(pmu, "caps/event_filter", "%lx", &val) != 1)
if (perf_pmu__scan_file(arm_spe_pmu, "caps/min_interval", "%llu",
if (perf_pmu__scan_file(intel_pt_pmu, "caps/topa_multiple_entries",
if (perf_pmu__scan_file(intel_pt_pmu, "max_nonturbo_ratio",
if (perf_pmu__scan_file(intel_pt_pmu, "caps/event_trace",
perf_pmu__scan_file(pmu, "nr_addr_filters", "%d", &nr_addr_filters);
perf_pmu__scan_file(pmu, "nr_addr_filters",