From: Baruch Siach <baruch@tkos.co.il>
To: buildroot@busybox.net
Subject: [Buildroot] GPIO
Date: Thu, 21 Oct 2010 10:38:28 +0200 [thread overview]
Message-ID: <20101021083828.GC13930@jasper.tkos.co.il> (raw)
In-Reply-To: <SNT119-W45EBAC8F8EBBF3D046BA77825D0@phx.gbl>
Hi Johnny,
On Thu, Oct 21, 2010 at 08:29:13AM +0000, Johnny Beardsmore wrote:
> I product I worked on a while ago has returned to haunt me.
>
> Essentially, I need support for a GPIO port on a pc-104. I've perused the
> configuration settings in Buioldroot, but wasn't able to spot anything that
> looked suitable. Is it, and has anyone any experience with doing so?
If you have a recent enough Linux kernel, and a driver supporting gpiolib for
your GPIO port, then you can use the sysfs based interface for controlling
GPIO lines. See Documentation/gpio.txt in the Linux kernel sources.
For a list of GPIO drivers in your kernel see drivers/gpio/Kconfig.
baruch
--
~. .~ Tk Open Systems
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- baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
next prev parent reply other threads:[~2010-10-21 8:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-21 8:29 [Buildroot] GPIO Johnny Beardsmore
2010-10-21 8:38 ` Baruch Siach [this message]
2010-10-21 8:43 ` Peter Korsgaard
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