text: /* Linux ISDN subsystem, tty_fax related functions
   *
   * Copyright 1999   by Armin Schindler (mac@melware.de)
   * Copyright 1999   by Ralf Spachmann (mel@melware.de)
   * Copyright 1999   by Cytronics & Melware
   *
   * This software may be used and distributed according to the terms
   * of the GNU General Public License, incorporated herein by reference.
   */
  
  
  #define XON	0x11
  #define XOFF	0x13
  #define DC2	0x12
  
  