-%define SYS_MKDIR 71 ; Create a new directory
-%define SYS_SYMLINK 72 ; Create a symbolic link
-%define SYS_GETACL 73 ; Get an ACL Value
-%define SYS_SETACL 74 ; Set an ACL Value
-%define SYS_FINFO 75 ; Get file information
-%define SYS_SEEK 76 ; Seek to a new position in the file
-%define SYS_TELL 77 ; Return the current file position
-%define SYS_CHDIR 78 ; Change current directory
-%define SYS_GETCWD 79 ; Get current directory
-%define SYS_MOUNT 80 ; Mount a filesystem
+%define SYS_OPENCHILD 71 ; Open a child entry in a directory
+%define SYS_MKDIR 72 ; Create a new directory
+%define SYS_SYMLINK 73 ; Create a symbolic link
+%define SYS_GETACL 74 ; Get an ACL Value
+%define SYS_SETACL 75 ; Set an ACL Value
+%define SYS_FINFO 76 ; Get file information
+%define SYS_SEEK 77 ; Seek to a new position in the file
+%define SYS_TELL 78 ; Return the current file position
+%define SYS_CHDIR 79 ; Change current directory
+%define SYS_GETCWD 80 ; Get current directory
+%define SYS_MOUNT 81 ; Mount a filesystem