source: buchla-68k/include/io.h@ 7258c6a

/*
   ============================================================================
        io.h -- Buchla 700 I/O library definitions
        Version 12 -- 1987-09-25 -- D.N. Lynx Crowe
   ============================================================================
*/

#include "fspars.h"             /* file system parameters */

struct channel {                /* channel table entry */

        int8_t  c_read;         /* read routine index */
        int8_t  c_write;        /* write routine index */
        int8_t  c_ioctl;        /* ioctl routine index */
        int8_t  c_seek;         /* seek routine index */
        int16_t (*c_close)();   /* close function pointer */
        io_arg  c_arg;          /* argument to channel driver */
};

struct device {                 /* device control structure */

        int8_t  d_read;         /* read routine code */
        int8_t  d_write;        /* write routine code */
        int8_t  d_ioctl;        /* ioctl routine code */
        int8_t  d_seek;         /* seek routine code */
        int16_t (*d_open)();    /* special open function */
};

struct devtabl {                /* device table entry */

        int8_t  *d_name;        /* device name */
        struct  device  *d_dev; /* pointer to device structure */
        io_arg  d_arg;          /* argument to device driver */
};

#ifndef _FS_DEF_

extern  struct channel chantab[MAXCHAN];        /* defined in fsinit.c */
extern  int8_t  Wrkbuf[BPSEC];                  /* defined in fsinit.c */

#endif