ref: ae2384b1273840d7633812d793895dace0d79683
dir: /include/err.h/
#pragma once
enum
{
OK = 0,
/* you don't want these mass up with your values */
PERM_DENIED = -128,
NAME_TOO_LONG,
NO_FILE,
FS_NOT_READY,
DIR_NOT_EMPTY,
NO_MEM,
LL_ERR,
}err;