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Annotation of 43BSDTahoe/sys/vax/dkio.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)dkio.h      7.2 (Berkeley) 12/22/87
                      7:  */
                      8: 
                      9: /*
                     10:  * Structures and definitions for disk io control commands
                     11:  *
                     12:  * THIS WHOLE AREA NEEDS MORE THOUGHT.  FOR NOW JUST IMPLEMENT
                     13:  * ENOUGH TO READ AND WRITE HEADERS ON MASSBUS DISKS.  EVENTUALLY
                     14:  * SHOULD BE ABLE TO DETERMINE DRIVE TYPE AND DO OTHER GOOD STUFF.
                     15:  */
                     16: 
                     17: /* disk io control commands */
                     18: #define DKIOCHDR       _IO('d', 1)     /* next I/O will read/write header */

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