Re: [questions] : gpiolib and gpioset behaviour

[Bartosz Golaszewski <brgl@xxxxxxxx>]

On Mon, Apr 22, 2024 at 6:49 PM Gilles BULOZ <gilles.buloz@xxxxxxxxxxx> wrote:
>
> On Mon, Apr 22, 2024 at 3:55 PM Bartosz Golaszewski wrote :
> >
> > This behavior is driver-specific. Meaning: you're in-kernel GPIO
> > driver may actually retain the state.
> >
>
> Which method should the driver implement to restore the state on GPIO when the
> last process referencing the character device exits ?
>

The free callback in struct gpio_chip.

Bart