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

Example 21 with UsbInterface

use of android.hardware.usb.UsbInterface in project android_frameworks_base by crdroidandroid.

the class UsbHostManager method beginUsbDeviceAdded.

/* Called from JNI in monitorUsbHostBus() to report new USB devices
       Returns true if successful, in which case the JNI code will continue adding configurations,
       interfaces and endpoints, and finally call endUsbDeviceAdded after all descriptors
       have been processed
     */
private boolean beginUsbDeviceAdded(String deviceName, int vendorID, int productID, int deviceClass, int deviceSubclass, int deviceProtocol, String manufacturerName, String productName, int version, String serialNumber) {
    if (DEBUG) {
        Slog.d(TAG, "usb:UsbHostManager.beginUsbDeviceAdded(" + deviceName + ")");
        // Audio Class Codes:
        // Audio: 0x01
        // Audio Subclass Codes:
        // undefined: 0x00
        // audio control: 0x01
        // audio streaming: 0x02
        // midi streaming: 0x03
        // some useful debugging info
        Slog.d(TAG, "usb: nm:" + deviceName + " vnd:" + vendorID + " prd:" + productID + " cls:" + deviceClass + " sub:" + deviceSubclass + " proto:" + deviceProtocol);
    }
    if (isBlackListed(deviceName) || isBlackListed(deviceClass, deviceSubclass, deviceProtocol)) {
        return false;
    }
    synchronized (mLock) {
        if (mDevices.get(deviceName) != null) {
            Slog.w(TAG, "device already on mDevices list: " + deviceName);
            return false;
        }
        if (mNewDevice != null) {
            Slog.e(TAG, "mNewDevice is not null in endUsbDeviceAdded");
            return false;
        }
        // Create version string in "%.%" format
        String versionString = Integer.toString(version >> 8) + "." + (version & 0xFF);
        mNewDevice = new UsbDevice(deviceName, vendorID, productID, deviceClass, deviceSubclass, deviceProtocol, manufacturerName, productName, versionString, serialNumber);
        mNewConfigurations = new ArrayList<UsbConfiguration>();
        mNewInterfaces = new ArrayList<UsbInterface>();
        mNewEndpoints = new ArrayList<UsbEndpoint>();
    }
    return true;
}