[Buildroot] GPIO

Peter Korsgaard jacmet at uclibc.org
Thu Oct 21 08:43:19 UTC 2010

>>>>> "Johnny" == Johnny Beardsmore <jny0 at hotmail.com> 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

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

Bye, Peter Korsgaard

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