android.hardware.usb.UsbDeviceConnection#controlTransfer

Source File: ConfigurationDescriptor.java From sample-usbenum with Apache License 2.0

6 votes

/**
 * Request the active configuration descriptor through the USB device connection.
 */
public static ConfigurationDescriptor fromDeviceConnection(UsbDeviceConnection connection)
        throws IllegalArgumentException, ParseException {
    //Create a sufficiently large buffer for incoming data
    byte[] buffer = new byte[LENGTH];

    connection.controlTransfer(REQUEST_TYPE, REQUEST, REQ_VALUE, REQ_INDEX,
            buffer, LENGTH, TIMEOUT);

    //Do a short read to determine descriptor length
    int totalLength = headerLengthCheck(buffer);
    //Obtain the full descriptor
    buffer = new byte[totalLength];
    connection.controlTransfer(REQUEST_TYPE, REQUEST, REQ_VALUE, REQ_INDEX,
            buffer, totalLength, TIMEOUT);

    return parseResponse(buffer);
}

Source File: USBMonitor.java From AndroidUSBCamera with Apache License 2.0

6 votes

/**
 * 指定したIDのStringディスクリプタから文字列を取得する。取得できなければnull
 * @param connection
 * @param id
 * @param languageCount
 * @param languages
 * @return
 */
private static String getString(final UsbDeviceConnection connection, final int id, final int languageCount, final byte[] languages) {
	final byte[] work = new byte[256];
	String result = null;
	for (int i = 1; i <= languageCount; i++) {
		int ret = connection.controlTransfer(
			USB_REQ_STANDARD_DEVICE_GET, // USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE
			USB_REQ_GET_DESCRIPTOR,
			(USB_DT_STRING << 8) | id, languages[i], work, 256, 0);
		if ((ret > 2) && (work[0] == ret) && (work[1] == USB_DT_STRING)) {
			// skip first two bytes(bLength & bDescriptorType), and copy the rest to the string
			try {
				result = new String(work, 2, ret - 2, "UTF-16LE");
				if (!"Љ".equals(result)) {	// 変なゴミが返ってくる時がある
					break;
				} else {
					result = null;
				}
			} catch (final UnsupportedEncodingException e) {
				// ignore
			}
		}
	}
	return result;
}

Source File: UsbUtils.java From libcommon with Apache License 2.0

6 votes

/**
 * 指定したIDのStringディスクリプタから文字列を取得する。取得できなければnull
 * @param connection
 * @param id
 * @param languageCount
 * @param languages
 * @return
 */
public static String getString(@NonNull final UsbDeviceConnection connection,
	final int id, final int languageCount, final byte[] languages) {

	final byte[] work = new byte[256];
	String result = null;
	for (int i = 1; i <= languageCount; i++) {
		int ret = connection.controlTransfer(
			USB_REQ_STANDARD_DEVICE_GET, // USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE
			USB_REQ_GET_DESCRIPTOR,
			(USB_DT_STRING << 8) | id, languages[i], work, 256, 0);
		if ((ret > 2) && (work[0] == ret) && (work[1] == USB_DT_STRING)) {
			// skip first two bytes(bLength & bDescriptorType), and copy the rest to the string
			result = new String(work, 2, ret - 2, CharsetsUtils.UTF16LE/*"UTF-16LE"*/);
			if (!"Љ".equals(result)) {	// 変なゴミが返ってくる時がある
				break;
			} else {
				result = null;
			}
		}
	}
	return result;
}

Source File: USBMonitor.java From DeviceConnect-Android with MIT License

6 votes

/**
 * 指定したIDのStringディスクリプタから文字列を取得する。取得できなければnull
 * @param connection
 * @param id
 * @param languageCount
 * @param languages
 * @return
 */
private static String getString(final UsbDeviceConnection connection, final int id, final int languageCount, final byte[] languages) {
	final byte[] work = new byte[256];
	String result = null;
	for (int i = 1; i <= languageCount; i++) {
		int ret = connection.controlTransfer(
			USB_REQ_STANDARD_DEVICE_GET, // USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE
			USB_REQ_GET_DESCRIPTOR,
			(USB_DT_STRING << 8) | id, languages[i], work, 256, 0);
		if ((ret > 2) && (work[0] == ret) && (work[1] == USB_DT_STRING)) {
			// skip first two bytes(bLength & bDescriptorType), and copy the rest to the string
			try {
				result = new String(work, 2, ret - 2, "UTF-16LE");
				if (!"Љ".equals(result)) {	// 変なゴミが返ってくる時がある
					break;
				} else {
					result = null;
				}
			} catch (final UnsupportedEncodingException e) {
				// ignore
			}
		}
	}
	return result;
}

Source File: XferUtils.java From USBIPServerForAndroid with GNU General Public License v3.0

6 votes

public static int doControlTransfer(UsbDeviceConnection devConn, int requestType,
		int request, int value, int index, byte[] buff, int length, int interval) {
	
	// Mask out possible sign expansions
	requestType &= 0xFF;
	request &= 0xFF;
	value &= 0xFFFF;
	index &= 0xFFFF;
	length &= 0xFFFF;
	
	System.out.printf("SETUP: %x %x %x %x %x\n",
			requestType, request, value, index, length);
	
	int res = devConn.controlTransfer(requestType, request, value,
			index, buff, length, interval);
	if (res < 0) {
		res = -Errno.getErrno();
		if (res != -110) { 
			// Don't print for ETIMEDOUT
			System.err.println("Control Xfer failed: "+res);
		}
	}
	
	return res;
}

Source File: DeviceDescriptor.java From sample-usbenum with Apache License 2.0

5 votes

/**
 * Request the device descriptor through the USB device connection.
 */
public static DeviceDescriptor fromDeviceConnection(UsbDeviceConnection connection)
        throws IllegalArgumentException {
    byte[] buffer = new byte[LENGTH];

    connection.controlTransfer(REQUEST_TYPE, REQUEST, REQ_VALUE, REQ_INDEX,
            buffer, LENGTH, TIMEOUT);

    return parseResponse(buffer);
}

Source File: USBMonitor.java From AndroidUSBCamera with Apache License 2.0

4 votes

/**
 * ベンダー名・製品名・バージョン・シリアルを取得する
 * @param manager
 * @param device
 * @param _info
 * @return
 */
@TargetApi(Build.VERSION_CODES.M)
public static UsbDeviceInfo updateDeviceInfo(final UsbManager manager, final UsbDevice device, final UsbDeviceInfo _info) {
	final UsbDeviceInfo info = _info != null ? _info : new UsbDeviceInfo();
	info.clear();

	if (device != null) {
		if (BuildCheck.isLollipop()) {
			info.manufacturer = device.getManufacturerName();
			info.product = device.getProductName();
			info.serial = device.getSerialNumber();
		}
		if (BuildCheck.isMarshmallow()) {
			info.usb_version = device.getVersion();
		}
		if ((manager != null) && manager.hasPermission(device)) {
			final UsbDeviceConnection connection = manager.openDevice(device);
			if(connection == null) {
				return null;
			}
			final byte[] desc = connection.getRawDescriptors();

			if (TextUtils.isEmpty(info.usb_version)) {
				info.usb_version = String.format("%x.%02x", ((int)desc[3] & 0xff), ((int)desc[2] & 0xff));
			}
			if (TextUtils.isEmpty(info.version)) {
				info.version = String.format("%x.%02x", ((int)desc[13] & 0xff), ((int)desc[12] & 0xff));
			}
			if (TextUtils.isEmpty(info.serial)) {
				info.serial = connection.getSerial();
			}

			final byte[] languages = new byte[256];
			int languageCount = 0;
			// controlTransfer(int requestType, int request, int value, int index, byte[] buffer, int length, int timeout)
			try {
				int result = connection.controlTransfer(
					USB_REQ_STANDARD_DEVICE_GET, // USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE
    				USB_REQ_GET_DESCRIPTOR,
    				(USB_DT_STRING << 8) | 0, 0, languages, 256, 0);
				if (result > 0) {
        			languageCount = (result - 2) / 2;
				}
				if (languageCount > 0) {
					if (TextUtils.isEmpty(info.manufacturer)) {
						info.manufacturer = getString(connection, desc[14], languageCount, languages);
					}
					if (TextUtils.isEmpty(info.product)) {
						info.product = getString(connection, desc[15], languageCount, languages);
					}
					if (TextUtils.isEmpty(info.serial)) {
						info.serial = getString(connection, desc[16], languageCount, languages);
					}
				}
			} finally {
				connection.close();
			}
		}
		if (TextUtils.isEmpty(info.manufacturer)) {
			info.manufacturer = USBVendorId.vendorName(device.getVendorId());
		}
		if (TextUtils.isEmpty(info.manufacturer)) {
			info.manufacturer = String.format("%04x", device.getVendorId());
		}
		if (TextUtils.isEmpty(info.product)) {
			info.product = String.format("%04x", device.getProductId());
		}
	}
	return info;
}

Source File: UsbDeviceInfo.java From libcommon with Apache License 2.0

4 votes

/**
 * USB機器情報(ベンダー名・製品名・バージョン・シリアル等)を取得する
 * @param connection
 * @param device
 * @param out
 * @return
 */
@SuppressLint("NewApi")
public static UsbDeviceInfo getDeviceInfo(
	@Nullable final UsbDeviceConnection connection,
	@Nullable final UsbDevice device, @Nullable final UsbDeviceInfo out) {

	final UsbDeviceInfo result = out != null ? out : new UsbDeviceInfo();
	result.clear();

	result.device = device;
	if (device != null) {
		if (BuildCheck.isAPI29() && (connection != null)) {
			// API>=29でターゲットAPI>=29ならパーミッションがないとシリアル番号を読み込めない
			// connectionがnullでないならopenできているのでパーミッションがある
			result.manufacturer = device.getManufacturerName();
			result.product = device.getProductName();
			result.configCounts = device.getConfigurationCount();
		} else if (BuildCheck.isLollipop()) {	// API >= 21
			result.manufacturer = device.getManufacturerName();
			result.product = device.getProductName();
			result.serial = device.getSerialNumber();
			result.configCounts = device.getConfigurationCount();
		}
		if (BuildCheck.isMarshmallow()) {	// API >= 23
			result.version = device.getVersion();
		}
		if (connection != null) {
			final byte[] desc = connection.getRawDescriptors();
			if (desc != null) {
				if (TextUtils.isEmpty(result.usb_version)) {
					result.usb_version = String.format("%x.%02x", ((int)desc[3] & 0xff), ((int)desc[2] & 0xff));
				}
				if (TextUtils.isEmpty(result.version)) {
					result.version = String.format("%x.%02x", ((int)desc[13] & 0xff), ((int)desc[12] & 0xff));
				}
				if (BuildCheck.isAPI29()) {	// API >= 29
					// API>=29でターゲットAPI>=29ならパーミッションがないとシリアル番号を読み込めない
					result.serial = device.getSerialNumber();
				}
				if (TextUtils.isEmpty(result.serial)) {
					result.serial = connection.getSerial();
				}
				if (result.configCounts < 0) {
					// FIXME 未実装 デバイスディスクリプタをパースせんとなりゃん
					result.configCounts = 1;
				}

				final byte[] languages = new byte[256];
				int languageCount = 0;
				// controlTransfer(int requestType, int request, int value, int index, byte[] buffer, int length, int timeout)
				int res = connection.controlTransfer(
					USB_REQ_STANDARD_DEVICE_GET, // USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE
					USB_REQ_GET_DESCRIPTOR,
					(USB_DT_STRING << 8)/* | 0*/, 0, languages, 256, 0);
				if (res > 0) {
					languageCount = (res - 2) / 2;
				}
				if (languageCount > 0) {
					if (TextUtils.isEmpty(result.manufacturer)) {
						result.manufacturer = UsbUtils.getString(connection, desc[14], languageCount, languages);
					}
					if (TextUtils.isEmpty(result.product)) {
						result.product = UsbUtils.getString(connection, desc[15], languageCount, languages);
					}
					if (TextUtils.isEmpty(result.serial)) {
						result.serial = UsbUtils.getString(connection, desc[16], languageCount, languages);
					}
				}
			}
		}
		if (TextUtils.isEmpty(result.manufacturer)) {
			result.manufacturer = USBVendorId.vendorName(device.getVendorId());
		}
		if (TextUtils.isEmpty(result.manufacturer)) {
			result.manufacturer = String.format("%04x", device.getVendorId());
		}
		if (TextUtils.isEmpty(result.product)) {
			result.product = String.format("%04x", device.getProductId());
		}
	}

	return result;
}

Source File: USBMonitor.java From DeviceConnect-Android with MIT License

4 votes

/**
 * ベンダー名・製品名・バージョン・シリアルを取得する
 * @param manager
 * @param device
 * @param _info
 * @return
 */
public static UsbDeviceInfo updateDeviceInfo(final UsbManager manager, final UsbDevice device, final UsbDeviceInfo _info) {
	final UsbDeviceInfo info = _info != null ? _info : new UsbDeviceInfo();
	info.clear();

	if (device != null) {
		if (BuildCheck.isLollipop()) {
			info.manufacturer = device.getManufacturerName();
			info.product = device.getProductName();
			info.serial = device.getSerialNumber();
		}
		if (BuildCheck.isMarshmallow()) {
			info.usb_version = device.getVersion();
		}
		if ((manager != null) && manager.hasPermission(device)) {
			final UsbDeviceConnection connection = manager.openDevice(device);
			final byte[] desc = connection.getRawDescriptors();

			if (TextUtils.isEmpty(info.usb_version)) {
				info.usb_version = String.format("%x.%02x", ((int)desc[3] & 0xff), ((int)desc[2] & 0xff));
			}
			if (TextUtils.isEmpty(info.version)) {
				info.version = String.format("%x.%02x", ((int)desc[13] & 0xff), ((int)desc[12] & 0xff));
			}
			if (TextUtils.isEmpty(info.serial)) {
				info.serial = connection.getSerial();
			}

			final byte[] languages = new byte[256];
			int languageCount = 0;
			// controlTransfer(int requestType, int request, int value, int index, byte[] buffer, int length, int timeout)
			try {
				int result = connection.controlTransfer(
					USB_REQ_STANDARD_DEVICE_GET, // USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE
    				USB_REQ_GET_DESCRIPTOR,
    				(USB_DT_STRING << 8) | 0, 0, languages, 256, 0);
				if (result > 0) {
        			languageCount = (result - 2) / 2;
				}
				if (languageCount > 0) {
					if (TextUtils.isEmpty(info.manufacturer)) {
						info.manufacturer = getString(connection, desc[14], languageCount, languages);
					}
					if (TextUtils.isEmpty(info.product)) {
						info.product = getString(connection, desc[15], languageCount, languages);
					}
					if (TextUtils.isEmpty(info.serial)) {
						info.serial = getString(connection, desc[16], languageCount, languages);
					}
				}
			} finally {
				connection.close();
			}
		}
		if (TextUtils.isEmpty(info.manufacturer)) {
			info.manufacturer = USBVendorId.vendorName(device.getVendorId());
		}
		if (TextUtils.isEmpty(info.manufacturer)) {
			info.manufacturer = String.format("%04x", device.getVendorId());
		}
		if (TextUtils.isEmpty(info.product)) {
			info.product = String.format("%04x", device.getProductId());
		}
	}
	return info;
}

Java Code Examples for android.hardware.usb.UsbDeviceConnection#controlTransfer()