ctrlchar.h File Reference

#include <linux/tty.h>

Go to the source code of this file.

Macros
#define	CTRLCHAR_NONE   (1 << 8)
#define	CTRLCHAR_CTRL   (2 << 8)
#define	CTRLCHAR_SYSRQ   (3 << 8)
#define	CTRLCHAR_MASK   (~0xffu)

Functions
unsigned int	ctrlchar_handle (const unsigned char *buf, int len, struct tty_struct *tty)

Macro Definition Documentation

#define CTRLCHAR_CTRL   (2 << 8)

Definition at line 16 of file ctrlchar.h.

#define CTRLCHAR_MASK   (~0xffu)

Definition at line 19 of file ctrlchar.h.

#define CTRLCHAR_NONE   (1 << 8)

Definition at line 15 of file ctrlchar.h.

#define CTRLCHAR_SYSRQ   (3 << 8)

Definition at line 17 of file ctrlchar.h.

Function Documentation

unsigned int ctrlchar_handle	(	const unsigned char *	buf,
		int	len,
		struct tty_struct *	tty
	)

Check for special chars at start of input.

Parameters

buf	Console input buffer.
len	Length of valid data in buffer.
tty	The tty struct for this console.

Returns

CTRLCHAR_NONE, if nothing matched, CTRLCHAR_SYSRQ, if sysrq was encountered otherwise char to be inserted logically or'ed with CTRLCHAR_CTRL

Definition at line 41 of file ctrlchar.c.