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Annotation of 41BSD/sys/stand/conf.c, revision 1.1

1.1     ! root        1: /*     conf.c  4.1     11/9/80 */
        !             2: 
        !             3: #include "../h/param.h"
        !             4: #include "../h/inode.h"
        !             5: #include "../h/pte.h"
        !             6: #include "../h/mba.h"
        !             7: #include "saio.h"
        !             8: 
        !             9: devread(io)
        !            10: register struct iob *io;
        !            11: {
        !            12: 
        !            13:        return( (*devsw[io->i_ino.i_dev].dv_strategy)(io,READ) );
        !            14: }
        !            15: 
        !            16: devwrite(io)
        !            17: register struct iob *io;
        !            18: {
        !            19:        return( (*devsw[io->i_ino.i_dev].dv_strategy)(io, WRITE) );
        !            20: }
        !            21: 
        !            22: devopen(io)
        !            23: register struct iob *io;
        !            24: {
        !            25:        (*devsw[io->i_ino.i_dev].dv_open)(io);
        !            26: }
        !            27: 
        !            28: devclose(io)
        !            29: register struct iob *io;
        !            30: {
        !            31:        (*devsw[io->i_ino.i_dev].dv_close)(io);
        !            32: }
        !            33: 
        !            34: nullsys()
        !            35: { ; }
        !            36: 
        !            37: int    nullsys();
        !            38: int    hpstrategy(), hpopen();
        !            39: int    htstrategy(), htopen(), htclose();
        !            40: int    upstrategy(), upopen();
        !            41: 
        !            42: struct devsw devsw[] = {
        !            43:        "hp",   hpstrategy,     hpopen,         nullsys,
        !            44:        "ht",   htstrategy,     htopen,         htclose,
        !            45:        "up",   upstrategy,     upopen,         nullsys,
        !            46:        0,0,0,0
        !            47: };
        !            48: 
        !            49: int mbanum[] = {       /* mba number of major device */
        !            50:        0,              /* disk */
        !            51:        1,              /* tape */
        !            52:        -1,             /* unused */
        !            53: };
        !            54: 
        !            55: int *mbaloc[] = {      /* physical location of mba */
        !            56:        (int *)PHYSMBA0,
        !            57:        (int *)PHYSMBA1,
        !            58: };

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