Re: gpioctl on the ODROID C2

Thank you!

That's unfortunate because in multi-user mode, kern.securelevel is 
forced to 1.
This means that the GPIO is unusable in practice. That's a rather 
curious design decision.

On 07/07/2025 20:08, Robert Swindells wrote:
> Vincent DEFERT <[email protected]> wrote:
>> How is that enforced?
>> I've had a look at gpioctl.c, gpio.c and mesongxbb_pinctrl.c and they
>> don't even contain the word 'secure'...
> See gpio_ioctl() in sys/dev/gpio/gpio.c, in the GPIOREAD case of the
> select there is a call to kauth_authorize_device().
>
>
> If you are looking for a project, meson_pinctrl.c doesn't have support
> for configuring pins to generate interrupts.
>