2.9BSD - /usr/include/sys/conf.h

   1: /*
   2:  * Declaration of block device
   3:  * switch. Each entry (row) is
   4:  * the only link between the
   5:  * main unix code and the driver.
   6:  * The initialization of the
   7:  * device switches is in the
   8:  * file conf.c.
   9:  */
  10: struct bdevsw   {
  11:     int (*d_open)();
  12:     int (*d_close)();
  13:     int (*d_strategy)();
  14:     void    (*d_root)();        /* root attach routine */
  15:     struct  buf *d_tab;
  16: };
  17: #ifdef  KERNEL
  18: extern  struct  bdevsw  bdevsw[];
  19: #endif
  20: 
  21: /*
  22:  * Character device switch.
  23:  */
  24: struct cdevsw   {
  25:     int (*d_open)();
  26:     int (*d_close)();
  27:     int (*d_read)();
  28:     int (*d_write)();
  29:     int (*d_ioctl)();
  30:     int (*d_stop)();
  31:     struct  tty *d_ttys;
  32: #ifdef  UCB_NET
  33:     int (*d_select)();
  34: #endif
  35: };
  36: #ifdef  KERNEL
  37: extern  struct  cdevsw  cdevsw[];
  38: #endif
  39: 
  40: /*
  41:  * tty line control switch.
  42:  */
  43: struct linesw   {
  44:     int (*l_open)();        /* entry to discipline */
  45:     int (*l_close)();       /* exit from discipline */
  46:     int (*l_read)();        /* read routine */
  47:     char    *(*l_write)();      /* write routine */
  48:     int (*l_ioctl)();       /* ioctl interface to driver */
  49:     int (*l_input)();       /* received character input */
  50:     int (*l_output)();      /* character output */
  51:     int (*l_modem)();       /* modem control notification */
  52: };
  53: #ifdef  KERNEL
  54: extern  struct  linesw  linesw[];
  55: #endif

Defined struct's

Usage of this include