From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Thu, 21 Oct 2010 10:43:19 +0200 Subject: [Buildroot] GPIO In-Reply-To: (Johnny Beardsmore's message of "Thu, 21 Oct 2010 08:29:13 +0000") References: Message-ID: <87wrpc0wd4.fsf@macbook.be.48ers.dk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net >>>>> "Johnny" == Johnny Beardsmore writes: Johnny> Hi, Johnny> I product I worked on a while ago has returned to haunt me. Johnny> Essentially, I need support for a GPIO port on a pc-104. I've Johnny> perused the configuration settings in Buioldroot, but wasn't Johnny> able to spot anything that looked suitable. Is it, and has Johnny> anyone any experience with doing so? That's a kernel question rather than an issue about userspace rootfs configuration. Have a look at the gpio options in the kernel and Documentation/gpio.txt in the kernel sources for information of how to access them through sysfs. -- Bye, Peter Korsgaard