device not detecting issue with Ubislate 7ci
<p>I wants to attach a finger print device to my android tablet so I am using the code below to detect device to my android tablet.</p>

<pre><code>UsbManager mDevManager = (UsbManager)ctx.getSystemService(Context.USB_SERVICE);
HashMap&lt;String, UsbDevice&gt; usb_devs =  mDevManager.getDeviceList();
Log.d(TAG, "OpenDevice() : usb_devs.size() = "+usb_devs.size());
</code></pre>

<p>This code works fine (<code>usb_devs.size()</code> returns 1) on my Samsung <code>GT-P3100</code> tablet but <code>usb_devs.size()</code> returns 0 on my <code>ubslate 7ci</code> tablet. The Android Version of ubslate 7ci is <code>4.0.4.</code><br>
So what is the issue??</p>
