ref: 91bae667fa4bb7089069694306e62b7b845560f5
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,
NO_SUCH_CMD,
}err;