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Annotation of XNU/bsd/dev/i386/cons.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /* 
                     23:  * Copyright (c) 1987 NeXT, Inc.
                     24:  */
                     25:  
                     26: struct consdev {
                     27:        char    *cn_name;       /* name of device in dev_name_list */
                     28:        int     (*cn_probe)();  /* probe hardware and fill in consdev info */
                     29:        int     (*cn_init)();   /* turn on as console */
                     30:        int     (*cn_getc)();   /* kernel getchar interface */
                     31:        int     (*cn_putc)();   /* kernel putchar interface */
                     32:        struct  tty *cn_tp;     /* tty structure for console device */
                     33:        dev_t   cn_dev;         /* major/minor of device */
                     34:        short   cn_pri;         /* pecking order; the higher the better */
                     35: };
                     36: 
                     37: /* values for cn_pri - reflect our policy for console selection */
                     38: #define        CN_DEAD         0       /* device doesn't exist */
                     39: #define CN_NORMAL      1       /* device exists but is nothing special */
                     40: #define CN_INTERNAL    2       /* "internal" bit-mapped display */
                     41: #define CN_REMOTE      3       /* serial interface with remote bit set */
                     42: 
                     43: /* XXX */
                     44: #define        CONSMAJOR       0
                     45: 
                     46: #ifdef KERNEL
                     47: 
                     48: #include <sys/types.h>
                     49: 
                     50: extern struct consdev constab[];
                     51: extern struct consdev *cn_tab;
                     52: extern struct tty *cn_tty;
                     53: 
                     54: extern struct tty      cons;
                     55: extern struct tty      *constty;               /* current console device */
                     56: #endif
                     57: 

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