lejos.nxt.comm
Class USB

java.lang.Object
  lejos.nxt.comm.NXTCommDevice
      lejos.nxt.comm.USB

public class USB
extends NXTCommDevice

Low-level USB access.

Author:

Lawrie Griffiths, extended to support streams by Andy Shaw

Field Summary

static int

RESET

Fields inherited from class lejos.nxt.comm.NXTCommDevice

ADDRESS_LEN, cs, NAME, NAME_LEN, SERIAL_NO

Method Summary

static NXTCommConnector	getConnector() Provides access to the singleton connection object.
static void	usbDisable()
static void	usbEnable(int reset)
static int	usbRead(byte[] buf, int off, int len)
static void	usbReset()
static void	usbSetName(String name)
static void	usbSetSerialNo(String serNo)
static int	usbStatus()
static int	usbWrite(byte[] buf, int off, int len)
static USBConnection	waitForConnection() Wait for ever for the USB connection to become available.
static USBConnection	waitForConnection(int timeout, int mode) Wait for the USB interface to become available and for a PC side program to attach to it.
static void	waitForDisconnect(USBConnection conn, int timeout) Wait for the remote side of the connection to close down.

Methods inherited from class lejos.nxt.comm.NXTCommDevice

addressToString, getAddress, getName, isAddress, loadSettings, nameToString, setAddress, setName, stringToAddress, stringToName

Methods inherited from class java.lang.Object

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

Field Detail

RESET

public static final int RESET

See Also:

Constant Field Values

Method Detail

waitForConnection

public static USBConnection waitForConnection(int timeout,
                                              int mode)

Wait for the USB interface to become available and for a PC side program to attach to it.

Parameters:

timeout - length of time to wait (in ms), if 0 wait for ever

mode - The IO mode to be used for the connection. (see NXTConnection)

Returns:

a connection object or null if no connection.

waitForConnection

public static USBConnection waitForConnection()

Wait for ever for the USB connection to become available.

Returns:

a connection object or null if no connection.

waitForDisconnect

public static void waitForDisconnect(USBConnection conn,
                                     int timeout)

Wait for the remote side of the connection to close down.

Parameters:

conn - The connection associated with this device.

timeout -

usbEnable

public static void usbEnable(int reset)

usbDisable

public static void usbDisable()

usbReset

public static void usbReset()

usbRead

public static int usbRead(byte[] buf,
                          int off,
                          int len)

usbWrite

public static int usbWrite(byte[] buf,
                           int off,
                           int len)

usbStatus

public static int usbStatus()

usbSetSerialNo

public static void usbSetSerialNo(String serNo)

usbSetName

public static void usbSetName(String name)

getConnector

public static NXTCommConnector getConnector()

Provides access to the singleton connection object. This object can be used to create new connections.

Returns:

the connector object