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-rw-r--r--arch/um/include/chan_user.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/um/include/chan_user.h b/arch/um/include/chan_user.h
new file mode 100644
index 000000000000..f77d9aa4c164
--- /dev/null
+++ b/arch/um/include/chan_user.h
@@ -0,0 +1,67 @@
1/*
2 * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
5
6#ifndef __CHAN_USER_H__
7#define __CHAN_USER_H__
8
9#include "init.h"
10
11struct chan_opts {
12 void (*announce)(char *dev_name, int dev);
13 char *xterm_title;
14 int raw;
15 unsigned long tramp_stack;
16 int in_kernel;
17};
18
19enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE };
20
21struct chan_ops {
22 char *type;
23 void *(*init)(char *, int, 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, void *);
29 int (*window_size)(int, void *, unsigned short *, unsigned short *);
30 void (*free)(void *);
31 int winch;
32};
33
34extern struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, tty_ops,
35 xterm_ops;
36
37extern void generic_close(int fd, void *unused);
38extern int generic_read(int fd, char *c_out, void *unused);
39extern int generic_write(int fd, const char *buf, int n, void *unused);
40extern int generic_console_write(int fd, const char *buf, int n, void *state);
41extern int generic_window_size(int fd, void *unused, unsigned short *rows_out,
42 unsigned short *cols_out);
43extern void generic_free(void *data);
44
45struct tty_struct;
46extern void register_winch(int fd, struct tty_struct *tty);
47extern void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty);
48
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" \
54);
55
56#endif
57
58/*
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
62 * of the file.
63 * ---------------------------------------------------------------------------
64 * Local variables:
65 * c-file-style: "linux"
66 * End:
67 */