Examples with UsbDevice android.hardware.usb.UsbDevice used on opensource projects

Example 36 with UsbDevice

use of android.hardware.usb.UsbDevice in project android_frameworks_base by DirtyUnicorns.

the class UsbHostManager method openDevice.

/* Opens the specified USB device */
public ParcelFileDescriptor openDevice(String deviceName) {
    synchronized (mLock) {
        if (isBlackListed(deviceName)) {
            throw new SecurityException("USB device is on a restricted bus");
        }
        UsbDevice device = mDevices.get(deviceName);
        if (device == null) {
            // if it is not in mDevices, it either does not exist or is blacklisted
            throw new IllegalArgumentException("device " + deviceName + " does not exist or is restricted");
        }
        getCurrentSettings().checkPermission(device);
        return nativeOpenDevice(deviceName);
    }
}

Example 37 with UsbDevice

use of android.hardware.usb.UsbDevice in project android_frameworks_base by DirtyUnicorns.

the class UsbAlsaManager method dump.

//
// Logging
//
public void dump(IndentingPrintWriter pw) {
    pw.println("USB Audio Devices:");
    for (UsbDevice device : mAudioDevices.keySet()) {
        pw.println("  " + device.getDeviceName() + ": " + mAudioDevices.get(device));
    }
    pw.println("USB MIDI Devices:");
    for (UsbDevice device : mMidiDevices.keySet()) {
        pw.println("  " + device.getDeviceName() + ": " + mMidiDevices.get(device));
    }
}

Example 38 with UsbDevice

use of android.hardware.usb.UsbDevice in project android_frameworks_base by AOSPA.

the class DeviceDisconnectedReceiver method onReceive.

@Override
public void onReceive(Context context, Intent intent) {
    UsbDevice device = (UsbDevice) intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
    String deviceName = device.getDeviceName();
    Log.d(TAG, "ACTION_USB_DEVICE_DETACHED " + deviceName);
    // close our activity if the device it is displaying is disconnected
    if (deviceName.equals(mDeviceName)) {
        mActivity.finish();
    }
}

Example 39 with UsbDevice

use of android.hardware.usb.UsbDevice in project android_frameworks_base by AOSPA.

the class TestUtil method findMtpDevice.

private static UsbDevice findMtpDevice(UsbManager usbManager, MtpManager manager) throws IOException {
    final HashMap<String, UsbDevice> devices = usbManager.getDeviceList();
    if (devices.size() == 0) {
        throw new IOException("Device not found.");
    }
    final UsbDevice device = devices.values().iterator().next();
    // Tries to get ownership of the device in case that another application use it.
    if (usbManager.hasPermission(device)) {
        final UsbDeviceConnection connection = usbManager.openDevice(device);
        for (int i = 0; i < device.getInterfaceCount(); i++) {
            // Since the test runs real environment, we need to call claim interface with
            // force = true to rob interfaces from other applications.
            connection.claimInterface(device.getInterface(i), true);
            connection.releaseInterface(device.getInterface(i));
        }
        connection.close();
    }
    manager.openDevice(device.getDeviceId());
    return device;
}

Example 40 with UsbDevice

use of android.hardware.usb.UsbDevice in project android_frameworks_base by ResurrectionRemix.

the class MtpManager method openDevice.

synchronized MtpDeviceRecord openDevice(int deviceId) throws IOException {
    UsbDevice rawDevice = null;
    for (final UsbDevice candidate : mManager.getDeviceList().values()) {
        if (candidate.getDeviceId() == deviceId) {
            rawDevice = candidate;
            break;
        }
    }
    ensureNotNull(rawDevice, "Not found USB device: " + deviceId);
    if (!mManager.hasPermission(rawDevice)) {
        mManager.grantPermission(rawDevice);
        if (!mManager.hasPermission(rawDevice)) {
            throw new IOException("Failed to grant a device permission.");
        }
    }
    final MtpDevice device = new MtpDevice(rawDevice);
    final UsbDeviceConnection connection = ensureNotNull(mManager.openDevice(rawDevice), "Failed to open a USB connection.");
    if (!device.open(connection)) {
        // We cannot open connection when another application use the device.
        throw new BusyDeviceException();
    }
    // Handle devices that fail to obtain storages just after opening a MTP session.
    final int[] storageIds = ensureNotNull(device.getStorageIds(), "Not found MTP storages in the device.");
    mDevices.put(deviceId, device);
    return createDeviceRecord(rawDevice);
}