Yeh, omap and gpio.....edge irq from a square wave pulse....
-----Original Message-----
From: Gilles Chanteperdrix [mailto:gilles.chanteperd...@xenomai.org]
Sent: Friday, January 20, 2012 12:20 PM
To: Terry Fryar
Cc: xenomai-help@gna.org
Subject: Re: [Xenomai-help] rtdm difficulties
On 01/20/2012 05:17 PM, Terry Fryar wrote:
> Using xenomai 2.6.0 with 2.6.38 kernel and rtdm. Been working on a
> rtdm driver for awhile and all of a sudden I've lost stability. So,
> I've backed off all code except for registering an empty realtime irq
> handler using rtdm_irq_request(). I'm getting kernel oops, and I
> don't know why? The irq handler simply returns RTDM_IRQ_HANDLED and
> that's it. I've rebuilt my kernel several times, and I'm wondering if
> I'm missing a .config entry for something related to xenomai?? If I
> take out the irq handler registration, all is fine. This driver's
> been working for about 2 weeks, but all of a sudden I'm getting kernel
> faults. Here's what I'm getting from my driver
> (vme_pd_drv):
Are you working on omap ? Is the irq coming from a gpio ? Are you returning
IRQ_HANDLED without acknowledging the interrupt at device level (I am
talking about the device on the other end of the irq line).
--
Gilles.
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