1 /* conf.h 4.8 81/10/17 */ 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 struct bdevsw 13 { 14 int (*d_open)(); 15 int (*d_close)(); 16 int (*d_strategy)(); 17 int (*d_dump)(); 18 int d_flags; 19 }; 20 #ifdef KERNEL 21 struct bdevsw bdevsw[]; 22 #endif 23 24 /* 25 * Character device switch. 26 */ 27 struct cdevsw 28 { 29 int (*d_open)(); 30 int (*d_close)(); 31 int (*d_read)(); 32 int (*d_write)(); 33 int (*d_ioctl)(); 34 int (*d_stop)(); 35 int (*d_reset)(); 36 struct tty *d_ttys; 37 int (*d_select)(); 38 }; 39 #ifdef KERNEL 40 struct cdevsw cdevsw[]; 41 #endif 42 43 /* 44 * tty line control switch. 45 */ 46 struct linesw 47 { 48 int (*l_open)(); 49 int (*l_close)(); 50 int (*l_read)(); 51 char *(*l_write)(); 52 int (*l_ioctl)(); 53 int (*l_rint)(); 54 int (*l_rend)(); 55 int (*l_meta)(); 56 int (*l_start)(); 57 int (*l_modem)(); 58 }; 59 #ifdef KERNEL 60 struct linesw linesw[]; 61 #endif 62 63 /* 64 * Swap device information 65 */ 66 struct swdevt 67 { 68 dev_t sw_dev; 69 int sw_freed; 70 }; 71 #ifdef KERNEL 72 struct swdevt swdevt[]; 73 #endif 74