2 	pg.c    (c) 1998  Grant R. Guenther <grant@torque.net>
5 	The pg driver provides a simple character device interface for
46 	The behaviour of the pg driver can be altered by setting
95 			(default "pg").
107 	    pg.drive0
108 	    pg.drive1
109 	    pg.drive2
110 	    pg.drive3
112 	In addition, you can use the parameter pg.disable to disable
126 #define PG_NAME		"pg"
163 #include <linux/pg.h>
208 struct pg {  struct
223 static struct pg devices[PG_UNITS];  argument
225 static int pg_identify(struct pg *dev, int log);
250 		struct pg *dev = &devices[unit];  in pg_init_units()
263 static inline int status_reg(struct pg *dev)  in status_reg()
268 static inline int read_reg(struct pg *dev, int reg)  in read_reg()
273 static inline void write_reg(struct pg *dev, int reg, int val)  in write_reg()
278 static inline u8 DRIVE(struct pg *dev)  in DRIVE()
288 static int pg_wait(struct pg *dev, int go, int stop, unsigned long tmo, char *msg)  in pg_wait()
320 static int pg_command(struct pg *dev, char *cmd, int dlen, unsigned long tmo)  in pg_command()
357 static int pg_completion(struct pg *dev, char *buf, unsigned long tmo)  in pg_completion()
388 static int pg_reset(struct pg *dev)  in pg_reset()
437 static int pg_identify(struct pg *dev, int log)  in pg_identify()
465 static int pg_probe(struct pg *dev)  in pg_probe()
480 	struct pg *dev = &devices[0];  in pg_detect()
529 	struct pg *dev = &devices[unit];  in pg_open()
567 	struct pg *dev = file->private_data;  in pg_release()
578 	struct pg *dev = filp->private_data;  in pg_write()
626 	struct pg *dev = filp->private_data;  in pg_read()
686 			struct pg *dev = &devices[unit];  in pg_init()
693 	pg_class = class_create(THIS_MODULE, "pg");  in pg_init()
699 		struct pg *dev = &devices[unit];  in pg_init()
702 				      "pg%u", unit);  in pg_init()
708 	unregister_chrdev(major, "pg");  in pg_init()
718 		struct pg *dev = &devices[unit];  in pg_exit()
726 		struct pg *dev = &devices[unit];  in pg_exit()