Package org.robolectric.shadows

Class ShadowUsbDeviceConnection

java.lang.Object

org.robolectric.shadows.ShadowUsbDeviceConnection

@Implements(android.hardware.usb.UsbDeviceConnection.class)
public class ShadowUsbDeviceConnection
extends Object

Robolectric implementation of UsbDeviceConnection.

Constructor Summary

Constructors

Constructor	Description
ShadowUsbDeviceConnection()

Method Summary

Modifier and Type	Method	Description
protected int	bulkTransfer(UsbEndpoint endpoint, byte[] buffer, int length, int timeout)
protected int	bulkTransfer(UsbEndpoint endpoint, byte[] buffer, int offset, int length, int timeout)
protected boolean	claimInterface(UsbInterface intf, boolean force)
protected int	controlTransfer(int requestType, int request, int value, int index, byte[] buffer, int length, int timeout)
protected int	controlTransfer(int requestType, int request, int value, int index, byte[] buffer, int offset, int length, int timeout)
InputStream	getOutgoingDataStream()	Provides an InputStream that allows reading data written by UsbDeviceConnection#bulkTransfer.
void	readOutgoingData(byte[] buffer)	Deprecated. prefer getOutgoingDataStream(), which allows callers to know how much data has been read and when the UsbDeviceConnection closes.
protected boolean	releaseInterface(UsbInterface intf)
protected UsbRequest	requestWait()
protected UsbRequest	requestWait(long timeout)
protected boolean	setInterface(UsbInterface intf)	No-op on Robolectric.
void	writeIncomingData(byte[] data)	Passes data that can then be read by an initialized UsbRequest#queue(ByteBuffer).

Methods inherited from class java.lang.Object

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

Constructor Details

ShadowUsbDeviceConnection

public ShadowUsbDeviceConnection()

Method Details

claimInterface

@Implementation
protected boolean claimInterface(UsbInterface intf,
 boolean force)

releaseInterface

@Implementation
protected boolean releaseInterface(UsbInterface intf)

setInterface

@Implementation
protected boolean setInterface(UsbInterface intf)

No-op on Robolectric. The real implementation would return false on Robolectric and make it impossible to test callers that expect a successful result. Always returns true.

controlTransfer

@Implementation
protected int controlTransfer(int requestType,
 int request,
 int value,
 int index,
 byte[] buffer,
 int length,
 int timeout)

controlTransfer

@Implementation
protected int controlTransfer(int requestType,
 int request,
 int value,
 int index,
 byte[] buffer,
 int offset,
 int length,
 int timeout)

requestWait

@Implementation
protected UsbRequest requestWait()

requestWait

@Implementation(minSdk=26)
protected UsbRequest requestWait(long timeout)
                          throws TimeoutException

Throws:

TimeoutException

bulkTransfer

@Implementation
protected int bulkTransfer(UsbEndpoint endpoint,
 byte[] buffer,
 int offset,
 int length,
 int timeout)

bulkTransfer

@Implementation
protected int bulkTransfer(UsbEndpoint endpoint,
 byte[] buffer,
 int length,
 int timeout)

readOutgoingData

@Deprecated
public void readOutgoingData(byte[] buffer)
                      throws IOException

Deprecated.

prefer getOutgoingDataStream(), which allows callers to know how much data has been read and when the UsbDeviceConnection closes.

Fills the buffer with data that was written by UsbDeviceConnection#bulkTransfer.

Throws:

IOException

getOutgoingDataStream

public InputStream getOutgoingDataStream()

Provides an InputStream that allows reading data written by UsbDeviceConnection#bulkTransfer. Closing this stream has no effect. It is effectively closed during UsbDeviceConnection.releaseInterface(UsbInterface).

writeIncomingData

public void writeIncomingData(byte[] data)

Passes data that can then be read by an initialized UsbRequest#queue(ByteBuffer).