xv6/dev.h

struct devsw {
  int (*read)(struct inode*, char*, int);
  int (*write)(struct inode*, char*, int);
};

extern struct devsw devsw[];

#define CONSOLE 1
devsw checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works 2006-08-09 16:04:04 +00:00			`struct devsw {`
Change dev read/write functions to take inode* instead of minor number. Unlock console inode during console_read and console_write. Otherwise background processes cannot write to console while the shell is reading it waiting for input. 2007-08-28 17:49:49 +00:00			`int (read)(struct inode, char*, int);`
			`int (write)(struct inode, char*, int);`
devsw checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works 2006-08-09 16:04:04 +00:00			`};`

			`extern struct devsw devsw[];`

			`#define CONSOLE 1`