Undo revision 21154 by Marius851000 (talk) This is not true. I opened one of RomFS of an official game I have. The root directory has the "Offset of first Child Directory" = 0x18, implying the root directory entry located at offset 0 is 0x18 bytes, which would contain the "Name Length" field. The said field also has value 0 as expected.
| Directory Name (Unicode)
The root directory doesn't contain the name length of the directory name part.