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Annotation of 43BSDReno/sys/vax/dkio.h, revision 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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