1 /* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1992 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. 9 * 10 * %sccs.include.redist.c% 11 * 12 * @(#)cons.h 7.1 (Berkeley) 11/15/92 13 */ 14 15 struct consdev { 16 int cn_disabled; /* If true use rom I/O routines */ 17 int cn_screen; /* True iff console is a screen/keyboard */ 18 dev_t cn_dev; /* major/minor of device */ 19 struct pmax_fb *cn_fb; /* Frame buffer struct for console screen */ 20 int (*cn_getc)(); /* kernel getchar interface */ 21 int (*cn_kbdgetc)(); /* kernel keyboard getchar interface */ 22 void (*cn_putc)(); /* kernel putchar interface */ 23 struct tty *cn_tp; /* tty structure for console device */ 24 }; 25 26 /* 27 * Major device numbers for possible console devices. XXX 28 */ 29 #define DTOPDEV 15 30 #define DCDEV 16 31 #define SCCDEV 17 32