Example usage for android.hardware.usb UsbConstants USB_CLASS_VENDOR_SPEC

Introduction

In this page you can find the example usage for android.hardware.usb UsbConstants USB_CLASS_VENDOR_SPEC.

Prototype

int USB_CLASS_VENDOR_SPEC

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Document

Vendor specific USB class.

Usage

From source file:fr.bmartel.android.fadecandy.service.FadecandyService.java

/**
 * Open USB device & choose USBEndpoint.
 *
 * @param device Usb device object.//ww w  . j  a  v a2s . c  om
 * @return Ubs item composed of USBDevice , USBEndpoint & UsbConnection
 */
private UsbItem openDevice(UsbDevice device) {

    UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE);

    try {
        UsbDeviceConnection connection = manager.openDevice(device);

        Log.v("USB", "Device name=" + device.getDeviceName());

        UsbInterface intf = null;

        for (int interfaceIndex = 0; interfaceIndex < device.getInterfaceCount(); interfaceIndex++) {

            UsbInterface usbInterface = device.getInterface(interfaceIndex);

            if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_VENDOR_SPEC) {
                intf = usbInterface;
            }
        }

        if (intf == null) {
            intf = device.getInterface(0);
        }

        UsbEndpoint endpoint = intf.getEndpoint(0);

        if (connection != null) {
            connection.claimInterface(intf, true);
        } else {
            Log.e(TAG, "USB connection error");
            return null;
        }

        return new UsbItem(device, connection, endpoint);

    } catch (IllegalArgumentException e) {
    }
    return null;
}

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