HelenOS sources

FAT_LFN_ERASED     74 uspace/app/mkfat/fat_dentry.h #define FAT_LFN_ERASED		0x80
FAT_LFN_ERASED     75 uspace/srv/fs/fat/fat_dentry.h #define FAT_LFN_ERASED		0x80
HelenOS homepage, sources at GitHub