flywithu/usb-serial-for-android
1
0
Fork 0
mirror of https://github.com/mik3y/usb-serial-for-android.git synced 2026-08-13 01:13:06 +00:00
Code Issues Releases Wiki Activity

composite CDC devices: get correct ACM data interface from IAD (#499)

Browse Source
This commit is contained in:
kai-morich
2023-08-23 07:48:11 +02:00
parent 7aecce7943
commit 54ff9bfa44
6 changed files with 364 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files
usbSerialForAndroid/src/test/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriverTest.java
+255 -17
View File
@@ -4,7 +4,10 @@ import static com.hoho.android.usbserial.driver.CdcAcmSerialDriver.USB_SUBCLASS_
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThrows;
import static org.mockito.Mockito.clearInvocations;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import android.hardware.usb.UsbConstants;
@@ -13,6 +16,8 @@ import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbEndpoint;
import android.hardware.usb.UsbInterface;
import com.hoho.android.usbserial.util.HexDump;
import org.junit.Test;
import java.io.IOException;
@@ -29,15 +34,37 @@ public class CdcAcmSerialDriverTest {
UsbEndpoint readEndpoint = mock(UsbEndpoint.class);
UsbEndpoint writeEndpoint = mock(UsbEndpoint.class);
/*
* digispark - no IAD
* UsbInterface[mId=0,mAlternateSetting=0,mName=null,mClass=2,mSubclass=2,mProtocol=1,mEndpoints=[
* UsbEndpoint[mAddress=131,mAttributes=3,mMaxPacketSize=8,mInterval=255]]
* UsbInterface[mId=1,mAlternateSetting=0,mName=null,mClass=10,mSubclass=0,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=1,mAttributes=2,mMaxPacketSize=8,mInterval=0]
* UsbEndpoint[mAddress=129,mAttributes=2,mMaxPacketSize=8,mInterval=0]]
*/
when(usbDeviceConnection.getRawDescriptors()).thenReturn(HexDump.hexStringToByteArray(
"12 01 10 01 02 00 00 08 D0 16 7E 08 00 01 01 02 00 01\n" +
"09 02 43 00 02 01 00 80 32\n" +
"09 04 00 00 01 02 02 01 00\n" +
"05 24 00 10 01\n" +
"04 24 02 02\n" +
"05 24 06 00 01\n" +
"05 24 01 03 01\n" +
"07 05 83 03 08 00 FF\n" +
"09 04 01 00 02 0A 00 00 00\n" +
"07 05 01 02 08 00 00\n" +
"07 05 81 02 08 00 00"));
when(usbDeviceConnection.claimInterface(controlInterface,true)).thenReturn(true);
when(usbDeviceConnection.claimInterface(dataInterface,true)).thenReturn(true);
when(usbDevice.getInterfaceCount()).thenReturn(2);
when(usbDevice.getInterface(0)).thenReturn(controlInterface);
when(usbDevice.getInterface(1)).thenReturn(dataInterface);
when(controlInterface.getId()).thenReturn(0);
when(controlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_COMM);
when(controlInterface.getInterfaceSubclass()).thenReturn(USB_SUBCLASS_ACM);
when(controlInterface.getEndpointCount()).thenReturn(1);
when(controlInterface.getEndpoint(0)).thenReturn(controlEndpoint);
when(dataInterface.getId()).thenReturn(1);
when(dataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(dataInterface.getEndpointCount()).thenReturn(2);
when(dataInterface.getEndpoint(0)).thenReturn(writeEndpoint);
@@ -98,7 +125,7 @@ public class CdcAcmSerialDriverTest {
@Test
public void multiPortDevice() throws Exception {
int n = 4;
int n = 2;
UsbDeviceConnection usbDeviceConnection = mock(UsbDeviceConnection.class);
UsbDevice usbDevice = mock(UsbDevice.class);
UsbInterface[] controlInterfaces = new UsbInterface[n];
@@ -107,6 +134,42 @@ public class CdcAcmSerialDriverTest {
UsbEndpoint[] readEndpoints = new UsbEndpoint[n];
UsbEndpoint[] writeEndpoints = new UsbEndpoint[n];
/*
* pi zero - dual port
* UsbInterface[mId=0,mAlternateSetting=0,mName=TinyUSB CDC,mClass=2,mSubclass=2,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=129,mAttributes=3,mMaxPacketSize=8,mInterval=16]]
* UsbInterface[mId=1,mAlternateSetting=0,mName=null,mClass=10,mSubclass=0,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=2,mAttributes=2,mMaxPacketSize=64,mInterval=0]
* UsbEndpoint[mAddress=130,mAttributes=2,mMaxPacketSize=64,mInterval=0]]
* UsbInterface[mId=2,mAlternateSetting=0,mName=TinyUSB CDC,mClass=2,mSubclass=2,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=131,mAttributes=3,mMaxPacketSize=8,mInterval=16]]
* UsbInterface[mId=3,mAlternateSetting=0,mName=null,mClass=10,mSubclass=0,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=4,mAttributes=2,mMaxPacketSize=64,mInterval=0]
* UsbEndpoint[mAddress=132,mAttributes=2,mMaxPacketSize=64,mInterval=0]]
*/
when(usbDeviceConnection.getRawDescriptors()).thenReturn(HexDump.hexStringToByteArray(
"12 01 00 02 EF 02 01 40 FE CA 02 40 00 01 01 02 03 01\n" +
"09 02 8D 00 04 01 00 80 32\n" +
"08 0B 00 02 02 02 00 00\n" +
"09 04 00 00 01 02 02 00 04\n" +
"05 24 00 20 01\n" +
"05 24 01 00 01\n" +
"04 24 02 02\n" +
"05 24 06 00 01\n" +
"07 05 81 03 08 00 10\n" +
"09 04 01 00 02 0A 00 00 00\n" +
"07 05 02 02 40 00 00\n" +
"07 05 82 02 40 00 00\n" +
"08 0B 02 02 02 02 00 00\n" +
"09 04 02 00 01 02 02 00 04\n" +
"05 24 00 20 01\n" +
"05 24 01 00 03\n" +
"04 24 02 02\n" +
"05 24 06 02 03\n" +
"07 05 83 03 08 00 10\n" +
"09 04 03 00 02 0A 00 00 00\n" +
"07 05 04 02 40 00 00\n" +
"07 05 84 02 40 00 00\n"));
when(usbDevice.getInterfaceCount()).thenReturn(2*n);
for(int i=0; i<n; i++) {
controlInterfaces[i] = mock(UsbInterface.class);
@@ -116,12 +179,14 @@ public class CdcAcmSerialDriverTest {
writeEndpoints[i] = mock(UsbEndpoint.class);
when(usbDeviceConnection.claimInterface(controlInterfaces[i], true)).thenReturn(true);
when(usbDeviceConnection.claimInterface(dataInterfaces[i], true)).thenReturn(true);
when(usbDevice.getInterface(2*i+0)).thenReturn(controlInterfaces[i]);
when(usbDevice.getInterface(2*i )).thenReturn(controlInterfaces[i]);
when(usbDevice.getInterface(2*i+1)).thenReturn(dataInterfaces[i]);
when(controlInterfaces[i].getId()).thenReturn(2*i);
when(controlInterfaces[i].getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_COMM);
when(controlInterfaces[i].getInterfaceSubclass()).thenReturn(USB_SUBCLASS_ACM);
when(controlInterfaces[i].getEndpointCount()).thenReturn(1);
when(controlInterfaces[i].getEndpoint(0)).thenReturn(controlEndpoints[i]);
when(dataInterfaces[i].getId()).thenReturn(2*i+1);
when(dataInterfaces[i].getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(dataInterfaces[i].getEndpointCount()).thenReturn(2);
when(dataInterfaces[i].getEndpoint(0)).thenReturn(writeEndpoints[i]);
@@ -133,18 +198,39 @@ public class CdcAcmSerialDriverTest {
when(writeEndpoints[i].getDirection()).thenReturn(UsbConstants.USB_DIR_OUT);
when(writeEndpoints[i].getType()).thenReturn(UsbConstants.USB_ENDPOINT_XFER_BULK);
}
int i = 2;
int i = 1;
CdcAcmSerialDriver driver = new CdcAcmSerialDriver(usbDevice);
CdcAcmSerialDriver.CdcAcmSerialPort port = (CdcAcmSerialDriver.CdcAcmSerialPort) driver.getPorts().get(i);
port.mConnection = usbDeviceConnection;
// reset invocations from countPorts()
clearInvocations(controlInterfaces[0]);
clearInvocations(controlInterfaces[1]);
port.openInt();
assertEquals(readEndpoints[i], port.mReadEndpoint);
assertEquals(writeEndpoints[i], port.mWriteEndpoint);
verify(controlInterfaces[0], times(0)).getInterfaceClass(); // not openInterface with 'no IAD fallback'
verify(controlInterfaces[1], times(2)).getInterfaceClass(); // openInterface with IAD
port.closeInt();
clearInvocations(controlInterfaces[0]);
clearInvocations(controlInterfaces[1]);
when(usbDeviceConnection.getRawDescriptors()).thenReturn(null);
port.openInt();
verify(controlInterfaces[0], times(2)).getInterfaceClass(); // openInterface with 'no IAD fallback'
verify(controlInterfaces[1], times(2)).getInterfaceClass(); // openInterface with 'no IAD fallback'
port.closeInt();
clearInvocations(controlInterfaces[0]);
clearInvocations(controlInterfaces[1]);
when(usbDeviceConnection.getRawDescriptors()).thenReturn(HexDump.hexStringToByteArray("01 02 02 82 02")); // truncated descriptor
port.openInt();
verify(controlInterfaces[0], times(2)).getInterfaceClass(); // openInterface with 'no IAD fallback'
verify(controlInterfaces[1], times(2)).getInterfaceClass(); // openInterface with 'no IAD fallback'
}
@Test
public void compositeDevice() throws Exception {
// mock BBC micro:bit
UsbDeviceConnection usbDeviceConnection = mock(UsbDeviceConnection.class);
UsbDevice usbDevice = mock(UsbDevice.class);
UsbInterface massStorageInterface = mock(UsbInterface.class);
@@ -156,6 +242,42 @@ public class CdcAcmSerialDriverTest {
UsbEndpoint readEndpoint = mock(UsbEndpoint.class);
UsbEndpoint writeEndpoint = mock(UsbEndpoint.class);
/*
* BBC micro:bit
* UsbInterface[mId=0,mAlternateSetting=0,mName=USB_MSC,mClass=8,mSubclass=6,mProtocol=80,mEndpoints=[
* UsbEndpoint[mAddress=130,mAttributes=2,mMaxPacketSize=64,mInterval=0]
* UsbEndpoint[mAddress=2,mAttributes=2,mMaxPacketSize=64,mInterval=0]]
* UsbInterface[mId=1,mAlternateSetting=0,mName=mbed Serial Port,mClass=2,mSubclass=2,mProtocol=1,mEndpoints=[
* UsbEndpoint[mAddress=131,mAttributes=3,mMaxPacketSize=16,mInterval=32]]
* UsbInterface[mId=2,mAlternateSetting=0,mName=mbed Serial Port,mClass=10,mSubclass=0,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=4,mAttributes=2,mMaxPacketSize=64,mInterval=0]
* UsbEndpoint[mAddress=132,mAttributes=2,mMaxPacketSize=64,mInterval=0]]
* UsbInterface[mId=3,mAlternateSetting=0,mName=CMSIS-DAP,mClass=3,mSubclass=0,mProtocol=0,mEndpoints=[
* UsbEndpoint[mAddress=129,mAttributes=3,mMaxPacketSize=64,mInterval=1]
* UsbEndpoint[mAddress=1,mAttributes=3,mMaxPacketSize=64,mInterval=1]]
* UsbInterface[mId=4,mAlternateSetting=0,mName=WebUSB: CMSIS-DAP,mClass=255,mSubclass=3,mProtocol=0,mEndpoints=[]
*/
when(usbDeviceConnection.getRawDescriptors()).thenReturn(HexDump.hexStringToByteArray(
"12 01 10 02 EF 02 01 40 28 0D 04 02 00 10 01 02 03 01\n" +
"09 02 8B 00 05 01 00 80 FA\n" +
"09 04 00 00 02 08 06 50 08\n" +
"07 05 82 02 40 00 00\n" +
"07 05 02 02 40 00 00\n" +
"08 0B 01 02 02 02 01 04\n" +
"09 04 01 00 01 02 02 01 04\n" +
"05 24 00 10 01\n" +
"05 24 01 03 02\n" +
"04 24 02 06\n" +
"05 24 06 01 02\n" +
"07 05 83 03 10 00 20\n" +
"09 04 02 00 02 0A 00 00 05\n" +
"07 05 04 02 40 00 00\n" +
"07 05 84 02 40 00 00\n" +
"09 04 03 00 02 03 00 00 06\n" +
"09 21 00 01 00 01 22 21 00\n" +
"07 05 81 03 40 00 01\n" +
"07 05 01 03 40 00 01\n" +
"09 04 04 00 00 FF 03 00 07"));
when(usbDeviceConnection.claimInterface(controlInterface,true)).thenReturn(true);
when(usbDeviceConnection.claimInterface(dataInterface,true)).thenReturn(true);
when(usbDevice.getInterfaceCount()).thenReturn(5);
@@ -164,11 +286,16 @@ public class CdcAcmSerialDriverTest {
when(usbDevice.getInterface(2)).thenReturn(dataInterface);
when(usbDevice.getInterface(3)).thenReturn(hidInterface);
when(usbDevice.getInterface(4)).thenReturn(vendorInterface);
when(massStorageInterface.getId()).thenReturn(0);
when(massStorageInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_MASS_STORAGE);
when(controlInterface.getId()).thenReturn(1);
when(controlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_COMM);
when(controlInterface.getInterfaceSubclass()).thenReturn(USB_SUBCLASS_ACM);
when(dataInterface.getId()).thenReturn(2);
when(dataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(hidInterface.getId()).thenReturn(3);
when(hidInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_HID);
when(vendorInterface.getId()).thenReturn(4);
when(vendorInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_VENDOR_SPEC);
when(controlInterface.getEndpointCount()).thenReturn(1);
@@ -189,34 +316,145 @@ public class CdcAcmSerialDriverTest {
port.openInt();
assertEquals(readEndpoint, port.mReadEndpoint);
assertEquals(writeEndpoint, port.mWriteEndpoint);
ProbeTable probeTable = UsbSerialProber.getDefaultProbeTable();
Class<? extends UsbSerialDriver> probeDriver = probeTable.findDriver(usbDevice);
assertEquals(driver.getClass(), probeDriver);
}
@Test
public void compositeRndisDevice() throws Exception {
UsbDeviceConnection usbDeviceConnection = mock(UsbDeviceConnection.class);
UsbDevice usbDevice = mock(UsbDevice.class);
UsbInterface rndisControlInterface = mock(UsbInterface.class);
UsbInterface rndisDataInterface = mock(UsbInterface.class);
UsbInterface controlInterface = mock(UsbInterface.class);
UsbInterface dataInterface = mock(UsbInterface.class);
UsbEndpoint controlEndpoint = mock(UsbEndpoint.class);
UsbEndpoint readEndpoint = mock(UsbEndpoint.class);
UsbEndpoint writeEndpoint = mock(UsbEndpoint.class);
// has multiple USB_CLASS_CDC_DATA interfaces => get correct with IAD
when(usbDeviceConnection.getRawDescriptors()).thenReturn(HexDump.hexStringToByteArray(
"12 01 00 02 EF 02 01 40 FE CA 02 40 00 01 01 02 03 01\n" +
"09 02 8D 00 04 01 00 80 32\n" +
"08 0B 00 02 E0 01 03 00\n" +
"09 04 00 00 01 E0 01 03 04\n" +
"05 24 00 10 01\n" +
"05 24 01 00 01\n" +
"04 24 02 00\n" +
"05 24 06 00 01\n" +
"07 05 81 03 08 00 01\n" +
"09 04 01 00 02 0A 00 00 00\n" +
"07 05 82 02 40 00 00\n" +
"07 05 02 02 40 00 00\n" +
"08 0B 02 02 02 02 00 00\n" +
"09 04 02 00 01 02 02 00 04\n" +
"05 24 00 20 01\n" +
"05 24 01 00 03\n" +
"04 24 02 02\n" +
"05 24 06 02 03\n" +
"07 05 83 03 08 00 10\n" +
"09 04 03 00 02 0A 00 00 00\n" +
"07 05 04 02 40 00 00\n" +
"07 05 84 02 40 00 00"));
when(usbDeviceConnection.claimInterface(controlInterface,true)).thenReturn(true);
when(usbDeviceConnection.claimInterface(dataInterface,true)).thenReturn(true);
when(usbDevice.getInterfaceCount()).thenReturn(4);
when(usbDevice.getInterface(0)).thenReturn(rndisControlInterface);
when(usbDevice.getInterface(1)).thenReturn(rndisDataInterface);
when(usbDevice.getInterface(2)).thenReturn(controlInterface);
when(usbDevice.getInterface(3)).thenReturn(dataInterface);
when(rndisControlInterface.getId()).thenReturn(0);
when(rndisControlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_WIRELESS_CONTROLLER);
when(rndisControlInterface.getInterfaceSubclass()).thenReturn(1);
when(rndisControlInterface.getInterfaceProtocol()).thenReturn(3);
when(rndisDataInterface.getId()).thenReturn(1);
when(rndisDataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(controlInterface.getId()).thenReturn(2);
when(controlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_COMM);
when(controlInterface.getInterfaceSubclass()).thenReturn(USB_SUBCLASS_ACM);
when(dataInterface.getId()).thenReturn(3);
when(dataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(controlInterface.getEndpointCount()).thenReturn(1);
when(controlInterface.getEndpoint(0)).thenReturn(controlEndpoint);
when(dataInterface.getEndpointCount()).thenReturn(2);
when(dataInterface.getEndpoint(0)).thenReturn(writeEndpoint);
when(dataInterface.getEndpoint(1)).thenReturn(readEndpoint);
when(controlEndpoint.getDirection()).thenReturn(UsbConstants.USB_DIR_IN);
when(controlEndpoint.getType()).thenReturn(UsbConstants.USB_ENDPOINT_XFER_INT);
when(readEndpoint.getDirection()).thenReturn(UsbConstants.USB_DIR_IN);
when(readEndpoint.getType()).thenReturn(UsbConstants.USB_ENDPOINT_XFER_BULK);
when(writeEndpoint.getDirection()).thenReturn(UsbConstants.USB_DIR_OUT);
when(writeEndpoint.getType()).thenReturn(UsbConstants.USB_ENDPOINT_XFER_BULK);
CdcAcmSerialDriver driver = new CdcAcmSerialDriver(usbDevice);
CdcAcmSerialDriver.CdcAcmSerialPort port = (CdcAcmSerialDriver.CdcAcmSerialPort) driver.getPorts().get(0);
port.mConnection = usbDeviceConnection;
port.openInt();
assertEquals(readEndpoint, port.mReadEndpoint);
assertEquals(writeEndpoint, port.mWriteEndpoint);
}
@Test
public void compositeRndisDevice() throws Exception {
public void compositeAlternateSettingDevice() throws Exception {
UsbDeviceConnection usbDeviceConnection = mock(UsbDeviceConnection.class);
UsbDevice usbDevice = mock(UsbDevice.class);
UsbInterface rndisControlInterface = mock(UsbInterface.class);
UsbInterface rndisDataInterface = mock(UsbInterface.class);
UsbInterface ethernetControlInterface = mock(UsbInterface.class);
UsbInterface ethernetDummyInterface = mock(UsbInterface.class);
UsbInterface ethernetDataInterface = mock(UsbInterface.class);
UsbInterface controlInterface = mock(UsbInterface.class);
UsbInterface dataInterface = mock(UsbInterface.class);
UsbEndpoint controlEndpoint = mock(UsbEndpoint.class);
UsbEndpoint readEndpoint = mock(UsbEndpoint.class);
UsbEndpoint writeEndpoint = mock(UsbEndpoint.class);
// has multiple USB_CLASS_CDC_DATA interfaces => get correct with IAD
when(usbDeviceConnection.getRawDescriptors()).thenReturn(HexDump.hexStringToByteArray(
"12 01 00 02 EF 02 01 40 FE CA 02 40 00 01 01 02 03 01\n" +
"09 02 9A 00 04 01 00 80 32\n" +
"08 0B 00 02 02 06 00 00\n" +
"09 04 00 00 01 02 06 00 04\n" +
"05 24 00 20 01\n" +
"05 24 06 00 01\n" +
"0D 24 0F 04 00 00 00 00 DC 05 00 00 00\n" +
"07 05 81 03 08 00 01\n" +
"09 04 01 00 00 0A 00 00 00\n" +
"09 04 01 01 02 0A 00 00 00\n" +
"07 05 82 02 40 00 00\n" +
"07 05 02 02 40 00 00\n" +
"08 0B 02 02 02 02 00 00\n" +
"09 04 02 00 01 02 02 00 04\n" +
"05 24 00 20 01\n" +
"05 24 01 00 03\n" +
"04 24 02 02\n" +
"05 24 06 02 03\n" +
"07 05 83 03 08 00 10\n" +
"09 04 03 00 02 0A 00 00 00\n" +
"07 05 04 02 40 00 00\n" +
"07 05 84 02 40 00 00"));
when(usbDeviceConnection.claimInterface(controlInterface,true)).thenReturn(true);
when(usbDeviceConnection.claimInterface(dataInterface,true)).thenReturn(true);
when(usbDevice.getInterfaceCount()).thenReturn(4);
when(usbDevice.getInterface(0)).thenReturn(rndisControlInterface);
when(usbDevice.getInterface(1)).thenReturn(rndisDataInterface);
when(usbDevice.getInterface(2)).thenReturn(controlInterface);
when(usbDevice.getInterface(3)).thenReturn(dataInterface);
when(rndisControlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_WIRELESS_CONTROLLER);
when(rndisControlInterface.getInterfaceSubclass()).thenReturn(1);
when(rndisControlInterface.getInterfaceProtocol()).thenReturn(3);
when(rndisDataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(usbDevice.getInterfaceCount()).thenReturn(5);
when(usbDevice.getInterface(0)).thenReturn(ethernetControlInterface);
when(usbDevice.getInterface(1)).thenReturn(ethernetDummyInterface);
when(usbDevice.getInterface(2)).thenReturn(ethernetDataInterface);
when(usbDevice.getInterface(3)).thenReturn(controlInterface);
when(usbDevice.getInterface(4)).thenReturn(dataInterface);
when(ethernetControlInterface.getId()).thenReturn(0);
when(ethernetControlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_COMM);
when(ethernetControlInterface.getInterfaceSubclass()).thenReturn(6);
when(ethernetDummyInterface.getId()).thenReturn(1);
when(ethernetDummyInterface.getAlternateSetting()).thenReturn(0);
when(ethernetDummyInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(ethernetDataInterface.getId()).thenReturn(1);
when(ethernetDataInterface.getAlternateSetting()).thenReturn(1);
when(ethernetDataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(controlInterface.getId()).thenReturn(2);
when(controlInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_COMM);
when(controlInterface.getInterfaceSubclass()).thenReturn(USB_SUBCLASS_ACM);
when(dataInterface.getId()).thenReturn(3);
when(dataInterface.getInterfaceClass()).thenReturn(UsbConstants.USB_CLASS_CDC_DATA);
when(controlInterface.getEndpointCount()).thenReturn(1);