android_kernel_motorola_sm6225/arch/um/include/chan_user.h
Jeff Dike 5e7672ec3f [PATCH] uml: const more data
Make lots of structures const in order to make it obvious that they need no
locking.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:26:15 -07:00

67 lines
2 KiB
C

/*
* Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __CHAN_USER_H__
#define __CHAN_USER_H__
#include "init.h"
struct chan_opts {
void (*announce)(char *dev_name, int dev);
char *xterm_title;
int raw;
unsigned long tramp_stack;
int in_kernel;
};
enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE };
struct chan_ops {
char *type;
void *(*init)(char *, int, const struct chan_opts *);
int (*open)(int, int, int, void *, char **);
void (*close)(int, void *);
int (*read)(int, char *, void *);
int (*write)(int, const char *, int, void *);
int (*console_write)(int, const char *, int);
int (*window_size)(int, void *, unsigned short *, unsigned short *);
void (*free)(void *);
int winch;
};
extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops,
tty_ops, xterm_ops;
extern void generic_close(int fd, void *unused);
extern int generic_read(int fd, char *c_out, void *unused);
extern int generic_write(int fd, const char *buf, int n, void *unused);
extern int generic_console_write(int fd, const char *buf, int n);
extern int generic_window_size(int fd, void *unused, unsigned short *rows_out,
unsigned short *cols_out);
extern void generic_free(void *data);
struct tty_struct;
extern void register_winch(int fd, struct tty_struct *tty);
extern void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty);
#define __channel_help(fn, prefix) \
__uml_help(fn, prefix "[0-9]*=<channel description>\n" \
" Attach a console or serial line to a host channel. See\n" \
" http://user-mode-linux.sourceforge.net/input.html for a complete\n" \
" description of this switch.\n\n" \
);
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/