From 1ae86030745013d9d54fc287c1ce875f7ddd99e6 Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Tue, 10 Jun 2025 16:38:17 +0200 Subject: [PATCH] Documentation: gpio: document the active_low field in the sysfs ABI Exported GPIO lines also have the active_low attribute which is not documented. Add a short mention for it. Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20250610-gpio-sysfs-chip-export-v1-2-a8c7aa4478b1@linaro.org Signed-off-by: Bartosz Golaszewski --- Documentation/ABI/obsolete/sysfs-gpio | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/ABI/obsolete/sysfs-gpio b/Documentation/ABI/obsolete/sysfs-gpio index 8203bc2128db7..480316fee6d80 100644 --- a/Documentation/ABI/obsolete/sysfs-gpio +++ b/Documentation/ABI/obsolete/sysfs-gpio @@ -22,6 +22,7 @@ Description: /value ... always readable, writes fail for input GPIOs /direction ... r/w as: in, out (default low); write: high, low /edge ... r/w as: none, falling, rising, both + /active_low ... r/w as: 0, 1 /gpiochipN ... for each gpiochip; #N is its first GPIO /base ... (r/o) same as N /label ... (r/o) descriptive, not necessarily unique -- 2.47.2