Re: How to access the GPIO pins in AT91SAM9260-EK under Linux

[Erik Mouw <mouw@xxxxxxxxxxxx>]

On Sun, 21 Dec 2008 12:15:43 +0800 "弓雷" <freshpassport@xxxxxxxxx>
wrote:

> I think you shuld in kernel space to access GPIO pins, such as a kernel module.

Oh, I agree that in most cases you would need a proper GPIO module. But
if you only have a single GPIO pin user in userland (i.e.: a single
process) you could access the pins from userland as well.


Erik

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