how to Ble scanner Scan response request when i needed?
<p>I'm developing bluetooth le scanner app.
When device is near by, I want to send '<code>Scan response request</code>' .
and when device is far, I want to stop sending 'Scan response request'.
Results found in google, android '<code>scan callback</code>' is send  to device 'Scan response request'.</p>

<ol>
<li>How to send 'Scan response request' when i needed not always?</li>
</ol>

<p>Results found in google, 'passive scan mode' is what i needed.
But 'passive scan mode' is in Mashmellow not Lollipop.
('Passive Scan mode'  : scan only advertising data not Scan response data)</p>

<ol start="2">
<li>Can i use '<code>Passive scan mode</code>' in Lollipop?</li>
</ol>