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kernel add
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/*
* 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 (*const announce)(char *dev_name, int dev);
char *xterm_title;
const int raw;
};
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_port;
extern void register_winch(int fd, struct tty_port *port);
extern void register_winch_irq(int fd, int tty_fd, int pid,
struct tty_port *port, unsigned long stack);
#define __channel_help(fn, prefix) \
__uml_help(fn, prefix "[0-9]*=<channel description>
" \
" Attach a console or serial line to a host channel. See
" \
" http://user-mode-linux.sourceforge.net/old/input.html for a complete
" \
" description of this switch.
" \
);
#endif
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