debug_file
struct dentry *debug_file;
struct dentry *debug_file;
charger->debug_file = debugfs_create_file("charger", 0666, NULL,
return charger->debug_file;
debugfs_remove(charger->debug_file);
charger->debug_file = da9030_bat_create_debugfs(charger);
fprintf(debug_file(), PERF_COLOR_DELETE_LINE);
fprintf(debug_file(), PERF_COLOR_DELETE_LINE);
evsel__fprintf(evsel, &details, debug_file());
ret = fprintf_time(debug_file());
ret += vfprintf(debug_file(), fmt, args);
ret = fprintf(debug_file(), "[%13" PRIu64 ".%06" PRIu64 "] ", secs, usecs);
ret += vfprintf(debug_file(), fmt, args);
FILE *debug_file(void);
FILE *fp = debug_file();