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Annotation of 40BSD/sys/h/conf.h, revision 1.1.1.1

1.1       root        1: /*     conf.h  4.1     11/9/80 */
                      2: 
                      3: /*
                      4:  * Declaration of block device
                      5:  * switch. Each entry (row) is
                      6:  * the only link between the
                      7:  * main unix code and the driver.
                      8:  * The initialization of the
                      9:  * device switches is in the
                     10:  * file conf.c.
                     11:  */
                     12: extern struct bdevsw
                     13: {
                     14:        int     (*d_open)();
                     15:        int     (*d_close)();
                     16:        int     (*d_strategy)();
                     17:        struct buf *d_tab;
                     18: } bdevsw[];
                     19: 
                     20: /*
                     21:  * Character device switch.
                     22:  */
                     23: extern struct cdevsw
                     24: {
                     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:        int     (*d_reset)();
                     32:        struct tty *d_ttys;
                     33: } cdevsw[];
                     34: 
                     35: /*
                     36:  * tty line control switch.
                     37:  */
                     38: extern struct linesw
                     39: {
                     40:        int     (*l_open)();
                     41:        int     (*l_close)();
                     42:        int     (*l_read)();
                     43:        char    *(*l_write)();
                     44:        int     (*l_ioctl)();
                     45:        int     (*l_rint)();
                     46:        int     (*l_rend)();
                     47:        int     (*l_meta)();
                     48:        int     (*l_start)();
                     49:        int     (*l_modem)();
                     50: } linesw[];
                     51: 
                     52: /*
                     53:  * Swap device information
                     54:  */
                     55: extern struct swdevt
                     56: {
                     57:        dev_t   sw_dev;
                     58:        int     sw_freed;
                     59: } swdevt[];

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