Re: [PATCH v9 1/1] gpio: add sloppy logic analyzer using polling
From: Geert Uytterhoeven
Date: Tue Jun 18 2024 - 14:58:42 EST
Hi Wolfram,
On Tue, Jun 18, 2024 at 12:54 PM Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> > I could see it using configfs instead of DT for configuration and iio
> > for presenting the output but - from what Wolfram said - insisting on
> > this will simply result in this development being dropped entirely.
>
> How do you assign a GPIO via debugfs? I only found the out-of-tree
> pwm-gpio driver[1] which uses a GPIO number. But those are deprecated
> these days, or? Any other driver doing this you can point me to?
Do you really need debugfs (or configfs)?
I guess you can just write GPIO line names or GPIO chip
labels + offsets to the new_device file, like gpio-aggregator does?
Documentation/admin-guide/gpio/gpio-aggregator.rst
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds