[unix-history] / usr / src / sys / sys / conf.h

/*      conf.h  3.4     %H%     */

/*
* Declaration of block device
* switch. Each entry (row) is
* the only link between the
* main unix code and the driver.
* The initialization of the
* device switches is in the
* file conf.c.
*/
extern struct bdevsw
{
       int     (*d_open)();
       int     (*d_close)();
       int     (*d_strategy)();
       struct buf *d_tab;
} bdevsw[];

/*
* Character device switch.
*/
extern struct cdevsw
{
       int     (*d_open)();
       int     (*d_close)();
       int     (*d_read)();
       int     (*d_write)();
       int     (*d_ioctl)();
       int     (*d_stop)();
       struct tty *d_ttys;
} cdevsw[];

/*
* tty line control switch.
*/
extern struct linesw
{
       int     (*l_open)();
       int     (*l_close)();
       int     (*l_read)();
       char    *(*l_write)();
       int     (*l_ioctl)();
       int     (*l_rint)();
       int     (*l_rend)();
       int     (*l_meta)();
       int     (*l_start)();
       int     (*l_modem)();
} linesw[];