4 ENOSYS, // Invalid Instruction
5 EINVAL, // Invalid Paramater
7 ENOMEM, // No free memory
8 EACCES, // Not permitted
9 EBUSY, // Resource is busy
10 ERANGE, // Value out of range
11 ENOTFOUND, // Item not found
12 EREADONLY, // Read only (duplicate with EROFS?)
13 ENOTIMPL, // Not implemented
15 EEXIST, // Already exists
16 ENFILE, // Too many open files
17 ENOTDIR, // Not a directory
19 EINTR, // Operation interrupted (signal)
20 EWOULDBLOCK, // Operation would have blocked
25 EPERM, // Permissions error
29 EALREADY, // Operation was a NOP
30 EINTERNAL, // Internal Error