4 ENOSYS, // Invalid Instruction
5 EINVAL, // Invalid Paramater
6 ENOMEM, // No free memory
7 EACCES, // Not permitted
8 EBUSY, // Resource is busy
9 ERANGE, // Value out of range
10 ENOTFOUND, // Item not found
11 EREADONLY, // Read only
12 ENOTIMPL, // Not implemented
14 EEXIST, // Already exists
15 ENFILE, // Too many open files
16 ENOTDIR, // Not a directory
18 EINTR, // Operation interrupted (signal)
20 EALREADY, // Operation was a NOP
21 EINTERNAL, // Internal Error