Hi everyone,
we're playing around with a Raspberry Pi 3 using aarch64 and wanted to use the GPIOs.
$this->bbcode_second_pass_code('', 'uname -a
Linux pi64 4.16.1-1-ARCH #1 SMP Sun Apr 8 18:35:06 MDT 2018 aarch64 GNU/Linux')
But when I try to access a GPIO, I get an error:
$this->bbcode_second_pass_code('', 'echo 4 > /sys/class/gpio/export
bash: echo: write error: Invalid argument')
What am I doing wrong? Has anyone successfully used GPIO with an aarch64 kernel?
Thanks for any help!