2 * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
6 #ifndef __CHAN_USER_H__
7 #define __CHAN_USER_H__
12 void (*announce)(char *dev_name, int dev);
15 unsigned long tramp_stack;
19 enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE };
23 void *(*init)(char *, int, const struct chan_opts *);
24 int (*open)(int, int, int, void *, char **);
25 void (*close)(int, void *);
26 int (*read)(int, char *, void *);
27 int (*write)(int, const char *, int, void *);
28 int (*console_write)(int, const char *, int);
29 int (*window_size)(int, void *, unsigned short *, unsigned short *);
34 extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops,
37 extern void generic_close(int fd, void *unused);
38 extern int generic_read(int fd, char *c_out, void *unused);
39 extern int generic_write(int fd, const char *buf, int n, void *unused);
40 extern int generic_console_write(int fd, const char *buf, int n);
41 extern int generic_window_size(int fd, void *unused, unsigned short *rows_out,
42 unsigned short *cols_out);
43 extern void generic_free(void *data);
46 extern void register_winch(int fd, struct tty_struct *tty);
47 extern void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty);
49 #define __channel_help(fn, prefix) \
50 __uml_help(fn, prefix "[0-9]*=<channel description>\n" \
51 " Attach a console or serial line to a host channel. See\n" \
52 " http://user-mode-linux.sourceforge.net/input.html for a complete\n" \
53 " description of this switch.\n\n" \
59 * Overrides for Emacs so that we follow Linus's tabbing style.
60 * Emacs will notice this stuff at the end of the file and automatically
61 * adjust the settings for this buffer only. This must remain at the end
63 * ---------------------------------------------------------------------------
65 * c-file-style: "linux"