1 /* $Id: isdn_ttyfax.h,v 1.1.2.2 2004/01/12 22:37:19 keil Exp $ 2 * 3 * header for Linux ISDN subsystem, tty_fax related functions (linklevel). 4 * 5 * Copyright 1999 by Armin Schindler (mac@melware.de) 6 * Copyright 1999 by Ralf Spachmann (mel@melware.de) 7 * Copyright 1999 by Cytronics & Melware 8 * 9 * This software may be used and distributed according to the terms 10 * of the GNU General Public License, incorporated herein by reference. 11 * 12 */ 13 14 15 #define XON 0x11 16 #define XOFF 0x13 17 #define DC2 0x12 18