gpio: sysfs: export the GPIO directory locally in the gpiochip<id> directory

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As a way to allow the user-space to stop referring to GPIOs by their
global numbers, introduce a parallel group of line attributes for
exported GPIO that live inside the GPIO chip class device and are
referred to by their HW offset within their parent chip.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250704-gpio-sysfs-chip-export-v4-8-9289d8758243@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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Bartosz Golaszewski 2025-07-04 14:58:55 +02:00

parent 1cd53df733

commit 4fa93223e0

2 changed files with 53 additions and 1 deletions

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3

Documentation/ABI/obsolete/sysfs-gpio

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51

drivers/gpio/gpiolib-sysfs.c

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