Re: About GPIO interrupt function with sysfs

[Grant Likely]

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.
Sorry.

g.

> 
> 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,
> -----------------------------------------
> Tomoya MORINAGA
> OKI SEMICONDUCTOR CO., LTD.
> 
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