EOK,
ENOSYS, // Invalid Instruction
EINVAL, // Invalid Paramater
+ EBADF, // Bad FD
ENOMEM, // No free memory
EACCES, // Not permitted
EBUSY, // Resource is busy
ENOTDIR, // Not a directory
EIO, // IO Error
EINTR, // Operation interrupted (signal)
+ ENODEV, // ???
+ EADDRNOTAVAIL, // ?
+ EINPROGRESS, // ?
+
+ EAGAIN, // Try again
EALREADY, // Operation was a NOP
EINTERNAL, // Internal Error