Re: Linux logs new warning `gpio gpiochip0: gpiochip_add_data_with_key: get_direction failed: -22`

[Paul Menzel]

Dear Bortosz,


Am 23.02.25 um 21:54 schrieb Bartosz Golaszewski:
> On Fri, Feb 21, 2025 at 10:02 PM Paul Menzel <pmenzel@xxxxxxxxxxxxx> wrote:
> > > What GPIO driver is it using? It's likely that it's not using the
> > > provider API correctly and this change uncovered it, I'd like to take
> > > a look at it and fix it.
> >
> > How do I find out? The commands below do not return anything.
> >
> >       $ lsmod | grep gpio
> >       $ lspci -nn | grep -i gpio
> >       $ sudo dmesg | grep gpio
> >       [    5.150955] gpio gpiochip0: gpiochip_add_data_with_key: get_direction failed: -22
> >       [Just these lines match.]

> If you have libgpiod-tools installed, you can post the output of
> gpiodetect here.

    $ sudo gpiodetect
    gpiochip0 [INT344B:00] (152 lines)

(In Debian the package name is *gpiod*.)


Kind regards,

Paul