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Message-Id: <20250610-gpio-sysfs-chip-export-v1-2-a8c7aa4478b1@linaro.org> Date: Tue, 10 Jun 2025 16:38:17 +0200 From: Bartosz Golaszewski <brgl@...ev.pl> To: Ahmad Fatoum <a.fatoum@...gutronix.de>, Kent Gibson <warthog618@...il.com>, Jan Lübbe <jlu@...gutronix.de>, Marek Vasut <marex@...x.de>, Geert Uytterhoeven <geert+renesas@...der.be>, Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...ev.pl> Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, Bartosz Golaszewski <bartosz.golaszewski@...aro.org> Subject: [PATCH RFC/RFT 02/15] Documentation: gpio: document the active_low field in the sysfs ABI From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org> Exported GPIO lines also have the active_low attribute which is not documented. Add a short mention for it. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org> --- 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 8203bc2128db7eb9ea6724884e680ed4b669853c..480316fee6d80fb7a0ed61706559838591ec0932 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 -- 2.48.1
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