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Date: Wed, 3 Sep 2008 16:15:47 +0200
From: "=?ISO-8859-1?Q?S=E9bastien_Chr=E9tien?="
	<sebastien.chretien.enseirb@gmail.com>
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Subject: irq
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Hello,

I am trying to register a function writh IRQ :

static irqreturn_t uart_test (int irq , void *dev_id)
{
    printk("/!\\ Interruption : tx_empty\n");
       return IRQ_HANDLED;
}

    req=request_irq(0x18,uart_test,NULL,"uart_test",NULL);
    printk("Initialisation IRQ UART : %d \n", req);

When I boot linux ppc, the req value is -38.
What is wrong ?

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Hello,<br>
<br>
I am trying to register a function writh IRQ :<br>
&nbsp;<br>
static irqreturn_t uart_test (int irq , void *dev_id)<br>
{<br>
&nbsp;&nbsp;&nbsp; printk(&quot;/!\\ Interruption : tx_empty\n&quot;);<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return IRQ_HANDLED;<br>
}<br>
&nbsp;&nbsp;&nbsp; <br>
&nbsp;&nbsp;&nbsp; req=request_irq(0x18,uart_test,NULL,&quot;uart_test&quot;,NULL);<br>
&nbsp;&nbsp;&nbsp; printk(&quot;Initialisation IRQ UART : %d \n&quot;, req);&nbsp;&nbsp;&nbsp; <br>
<br>
When I boot linux ppc, the req value is -38.<br>
What is wrong ?<br>

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