From: Octavian Purdila <tavi@cs.pub.ro>
To: kernelnewbies@nl.linux.org
Cc: Rick Brown <rick.brown.3@gmail.com>, linux-newbie@vger.kernel.org
Subject: Re: Interrupt handler registration for multiple devices
Date: Wed, 30 Aug 2006 18:29:08 +0300 [thread overview]
Message-ID: <200608301829.08747.tavi@cs.pub.ro> (raw)
In-Reply-To: <7783925d0608300812j2175164dja401b4e763a5ac43@mail.gmail.com>
On Wednesday 30 August 2006 18:12, Rick Brown wrote:
> Hi,
>
> I want to write a driver that will handle multiple devices. These
> devices will share the IRQ line. Do I need to register my (same)
> interrupt handler as many times as the number of devices(by calling
> request_irq())?
>
No, once will suffice. However, you will need to check your devices registers
and figure out which device triggered the interrupt.
tavi
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next prev parent reply other threads:[~2006-08-30 15:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-30 15:12 Interrupt handler registration for multiple devices Rick Brown
2006-08-30 15:29 ` Octavian Purdila [this message]
2006-08-30 19:38 ` Alan Cox
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