Hi,<div><br></div><div>I have a question with respect to request_threaded_irq.</div><div><br></div><div>Assume that one driver has registered and ISR on some particular irq number.</div><div><br></div><div>Can i use the same irq number and register and isr in another driver. Because that is my requirement.</div>
<div><br></div><div>when i try to do that is an error message with an error no as -19.</div><div><br></div><div><div> err = request_threaded_irq(pdata-&gt;irq , NULL, testing_fucntion,</div><div>                            IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, &quot;testing_function&quot;, dev);</div>
</div><div><br></div><div>Can some one please help me whether it is possible.</div><div><br></div><div>Regards,</div><div>RB</div>