GPIO button and userspace
Alex RAY
ray at ddteam.net
Wed Mar 17 21:07:05 UTC 2010
On Wed, 17 Mar 2010 12:14:49 -0700
Oleksandr Tymoshenko <gonzo at bluezbox.com> wrote:
>
> On 2010-03-17, at 12:04 PM, Alex RAY wrote:
>
> > Hackers
> > help find the correct answer, in what way I can send interrupt on GPIO to
> > the userspace script.
> > I know that I can make the device, and open it in program, but it is
> > cumbersome.
> > I know what I can run the script from the kernel, as in Linux, but I think
> > this is not the right way?
>
> IMHO the best way to implement it is to run scripts through devd. e.g. create
> use subsystem "GPIO" and few event types: "BUTTON_DOWN", "BUTTON_UP",
> /add yours here/. From the kernel side it's just a matter of calling devctl_notify if I got it right.
>
> --
> gonzo
>
>
>
Sorry, I forgot to clarify that no devd here and no free space for it :)
Embedded, Flash 4M for all.
--
Alex RAY <ray at ddteam.net>
More information about the freebsd-hackers
mailing list