detecting ethernet link up/down from user program

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Hi,
I want to write a user program which could detect link up/down event on=20
network interface.=20
 Is there a way to register a event or callback function with ethernet=20
driver in Linux so that user program could be notified of some event?
  regards
Vinay

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<div>Hi,</div>
<div>I want to write a user program which could detect link up/down event o=
n network interface. </div>
<div>&nbsp;Is there a way to register a event or callback function with eth=
ernet driver in Linux so that user program could be notified of some event?=
</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>regards</div>
<div>Vinay </div>

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