Re: Regarding export of GPIOs

[Riz <mdrizwan827@xxxxxxxxx>]

Sorry the kernel log was:
[    0.251788] GPIO line <num> (name) hogged as output/low

Regards.

On Tue, Aug 31, 2021 at 8:35 PM Riz <mdrizwan827@xxxxxxxxx> wrote:
>
> Hi Kent,
> Thank you for your response.
>
> I am observing a strange thing here.
>
> The kernel logs for the hogged GPIO reports as:
> [    0.251788] GPIO line <num> (name) hogged as output/high
>
> The corresponding dts changes are:
> >
> > pNum {
> > gpio-hog;
> > gpios = <num GPIO_ACTIVE_LOW>;
> > output-low;
> > line-name = "name";
> > };
>
>
> Based on the kernel log, I could say that it is hogging the GPIO as expected.
>
> But using the gpioinfo and lsgpio tools always show the direction as
> "input" for the hogged GPIO.
> gpioinfo <chipname>:
> line  X:      "pX" "name"   input   active-low [used]
>
> lsgpio -n <chipname>:
> line X: "pX" "name" [kernel active-low]
>
> I tried following the kernel by adding some logs, it seems to set the
> correct direction.
> I have really ran out of options here, any leads would be helpful.
>
> Thanks