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

The following examples show how to use android.hardware.usb.UsbDeviceConnection#controlTransfer() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

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);
}

Example 2

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;
}

Example 3

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;
}

Example 4

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;
}

Example 5

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;
}

Example 6

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);
}

Example 7

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;
}

Example 8

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;
}

Example 9

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;
}