ev3dev.utils.io

Class NativeTTY

java.lang.Object

ev3dev.utils.io.NativeFile

ev3dev.utils.io.NativeDevice

ev3dev.utils.io.NativeTTY

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class NativeTTY
extends NativeDevice

Wrapper for basic actions on Linux VT/TTY

Since:

2.4.7

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NativeTTY.vt_mode Info about VT configuration.
static class	NativeTTY.vt_stat Info about an active VT.

Field Summary

Fields inherited from class ev3dev.utils.io.NativeFile

fd

Constructor Summary

Constructors

Constructor and Description
NativeTTY(java.lang.String dname) Initialize new TTY.
NativeTTY(java.lang.String dname, ILibc libc) Initialize new TTY.
NativeTTY(java.lang.String dname, int flags) Initialize new TTY.
NativeTTY(java.lang.String dname, int flags, ILibc libc) Initialize new TTY.

Method Summary

Modifier and Type	Method and Description
int	getKeyboardMode() Get current keyboard mode.
NativeTTY.vt_mode	getVTmode() Get current TTY mode.
NativeTTY.vt_stat	getVTstate() Get current TTY state.
void	setConsoleMode(int mode) Set console mode.
void	setKeyboardMode(int mode) Set keyboard mode.
void	setVTmode(NativeTTY.vt_mode mode) Set current TTY mode.
void	signalSwitch(int mode) Signal VT switch to the kernel.

Methods inherited from class ev3dev.utils.io.NativeDevice

mmap

Methods inherited from class ev3dev.utils.io.NativeFile

close, ioctl, ioctl, isOpen, mmap, msync, munmap, open, open, read, read, write, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NativeTTY

public NativeTTY(java.lang.String dname)
          throws LastErrorException

Initialize new TTY.

Parameters:

dname - Path to TTY device.

Throws:

LastErrorException - when the operation fails.

NativeTTY

public NativeTTY(java.lang.String dname,
                 int flags)
          throws LastErrorException

Initialize new TTY.

Parameters:

dname - Path to TTY device.

flags - Opening mode, e.g. read, write or both.

Throws:

LastErrorException - when the operation fails.

NativeTTY

public NativeTTY(java.lang.String dname,
                 ILibc libc)
          throws LastErrorException

Initialize new TTY.

Parameters:

dname - Path to TTY device.

libc - standard C library interface to be used.

Throws:

LastErrorException - when the operation fails.

NativeTTY

public NativeTTY(java.lang.String dname,
                 int flags,
                 ILibc libc)
          throws LastErrorException

Initialize new TTY.

Parameters:

dname - Path to TTY device.

flags - Opening mode, e.g. read, write or both.

libc - standard C library interface to be used.

Throws:

LastErrorException - when the operation fails.

Method Detail

getVTmode

public NativeTTY.vt_mode getVTmode()
                            throws LastErrorException

Get current TTY mode. TTY mode is mostly about VT switching.

Returns:

TTY mode.

Throws:

LastErrorException - when the operation fails.

setVTmode

public void setVTmode(NativeTTY.vt_mode mode)
               throws LastErrorException

Set current TTY mode. TTY mode is mostly about VT switching.

Parameters:

mode - TTY mode.

Throws:

LastErrorException - when the operation fails.

getVTstate

public NativeTTY.vt_stat getVTstate()
                             throws LastErrorException

Get current TTY state.

Returns:

TTY state.

Throws:

LastErrorException - when the operation fails.

getKeyboardMode

public int getKeyboardMode()
                    throws LastErrorException

Get current keyboard mode.

Returns:

Keyboard mode (raw, transformed or off) - K_* constants.

Throws:

LastErrorException - when the operation fails.

setKeyboardMode

public void setKeyboardMode(int mode)
                     throws LastErrorException

Set keyboard mode.

Parameters:

mode - Keyboard mode (raw, transformed or off) - K_* constants.

Throws:

LastErrorException - when the operation fails.

setConsoleMode

public void setConsoleMode(int mode)
                    throws LastErrorException

Set console mode.

Parameters:

mode - Console mode - graphics or text mode - KD_* constants.

Throws:

LastErrorException - when the operation fails.

signalSwitch

public void signalSwitch(int mode)
                  throws LastErrorException

Signal VT switch to the kernel.

Parameters:

mode - VT switching signal - VT_* constants.

Throws:

LastErrorException - when the operation fails.