Re: About GPIO interrupt function with sysfs

From: Grant Likely
Date: Thu Mar 17 2011 - 14:51:26 EST

On Thu, Mar 10, 2011 at 11:13:05PM +0800, Lai, Mee Sim wrote:
> Hi Grant,
> Is there any update on this? thanks!

Nope, nor did I make any promises that I would have the time to do so.


> Thanks & Regards,
> Michelle Lai Mee Sim
> Software Platform Application Engineer
> inet:82532218
> -----Original Message-----
> From: Tomoya MORINAGA [mailto:tomoya-linux@xxxxxxxxxxxxxxx]
> Sent: Friday, March 04, 2011 8:06 AM
> To: 'Grant Likely'
> Cc: linux-kernel@xxxxxxxxxxxxxxx; Ewe, Kok Howg; Lai, Mee Sim; 'Toshiharu Okada'
> Subject: RE: About GPIO interrupt function with sysfs
> Hi Grant,
> On Friday, March 04, 2011 3:57 AM, Grant Likely wrote:
> > I don't know. I'll need to dig into that code before I can
> > answer. I suggest digging into it yourself to figure out the
> > answer as I cannot promise that I'll get to it anytime soon.
> Seeing "gpio_to_irq" of another architecture (e.g. ARM), there is significant code in it.
> In addition, you can see "Not implemented, yet" description in "arch/x86/include/asm/gpio.h"
> Thus, I suspect that x86 GPIO sysfs can't support interrupt function at present.
> Thanks,
> -----------------------------------------
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at