Re: Raspberry Pi: gpiomem device support

[Uwe Kleine-König <uwe@kleine-koenig.org>]

Hello Thomas,

On 03.04.24 21:49, Thomas Lehmann wrote:
> I forgot to include the references:
>
> [1]: https://raspi.debian.net/tested-images/
> [2]: https://github.com/raspberrypi/linux/issues/2514
>
> Ah, and I found Kernel code in drivers/char/raspberrypi-gpiomem.c and 
> the accompanying Kconfig defining the config "RASPBERRYPI_GPIOMEM".

I didn't look up what a gpiomem device does. I guess it drives GPIOs 
from userspace? I suggest evaluating gpiochip devices. The obvious lib 
to use is libgpiod2.

If that reply doesn't match your plan: What do you want to achieve?

Best regards
Uwe

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