Date: Wed, 17 Mar 2010 12:14:49 -0700 From: Oleksandr Tymoshenko <gonzo@bluezbox.com> To: Alex RAY <ray@ddteam.net> Cc: hackers@freebsd.org Subject: Re: GPIO button and userspace Message-ID: <A4CCE92C-CDDD-4EB8-B7B4-A920FFBF89AC@bluezbox.com> In-Reply-To: <c47304e21003171204j705da26av88afb5c57a3b7557@mail.gmail.com> References: <c47304e21003171204j705da26av88afb5c57a3b7557@mail.gmail.com>
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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/. =46rom the kernel side it's just a matter of calling =
devctl_notify if I got it right.
--=20
gonzo
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