From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: [PATCH 6/6] gpio: ABI: mark the sysfs ABI as obsolete Date: Thu, 22 Oct 2015 10:32:30 +0200 Message-ID: <1445502750-22672-7-git-send-email-linus.walleij@linaro.org> References: <1445502750-22672-1-git-send-email-linus.walleij@linaro.org> Return-path: Received: from mail-lf0-f46.google.com ([209.85.215.46]:33674 "EHLO mail-lf0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756712AbbJVIdL (ORCPT ); Thu, 22 Oct 2015 04:33:11 -0400 Received: by lffv3 with SMTP id v3so39297207lff.0 for ; Thu, 22 Oct 2015 01:33:09 -0700 (PDT) In-Reply-To: <1445502750-22672-1-git-send-email-linus.walleij@linaro.org> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: linux-gpio@vger.kernel.org, Johan Hovold , Alexandre Courbot , Arnd Bergmann , Michael Welling , Markus Pargmann Cc: Mark Brown , Amit Kucheria , Linus Walleij This marks the (optional) sysfs GPIO ABI as obsolete and schedules it for removal in 2020. Cc: Johan Hovold Cc: Michael Welling Cc: Markus Pargmann Signed-off-by: Linus Walleij --- Documentation/ABI/obsolete/sysfs-gpio | 30 ++++++++++++++++++++++++++++++ Documentation/ABI/testing/sysfs-gpio | 28 ---------------------------- MAINTAINERS | 1 + 3 files changed, 31 insertions(+), 28 deletions(-) create mode 100644 Documentation/ABI/obsolete/sysfs-gpio delete mode 100644 Documentation/ABI/testing/sysfs-gpio diff --git a/Documentation/ABI/obsolete/sysfs-gpio b/Documentation/ABI/obsolete/sysfs-gpio new file mode 100644 index 000000000000..867c1fab20e2 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-gpio @@ -0,0 +1,30 @@ +What: /sys/class/gpio/ +Date: July 2008 +KernelVersion: 2.6.27 +Contact: Linus Walleij +Description: + + As a Kconfig option, individual GPIO signals may be accessed from + userspace. GPIOs are only made available to userspace by an explicit + "export" operation. If a given GPIO is not claimed for use by + kernel code, it may be exported by userspace (and unexported later). + Kernel code may export it for complete or partial access. + + GPIOs are identified as they are inside the kernel, using integers in + the range 0..INT_MAX. See Documentation/gpio.txt for more information. + + /sys/class/gpio + /export ... asks the kernel to export a GPIO to userspace + /unexport ... to return a GPIO to the kernel + /gpioN ... for each exported GPIO #N OR + / ... for a properly named GPIO line + /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 + /gpiochipN ... for each gpiochip; #N is its first GPIO + /base ... (r/o) same as N + /label ... (r/o) descriptive, not necessarily unique + /ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1) + + This ABI is deprecated and will be removed after 2020. It is + replaced with the GPIO character device. diff --git a/Documentation/ABI/testing/sysfs-gpio b/Documentation/ABI/testing/sysfs-gpio deleted file mode 100644 index 55ffa2df1c10..000000000000 --- a/Documentation/ABI/testing/sysfs-gpio +++ /dev/null @@ -1,28 +0,0 @@ -What: /sys/class/gpio/ -Date: July 2008 -KernelVersion: 2.6.27 -Contact: David Brownell -Description: - - As a Kconfig option, individual GPIO signals may be accessed from - userspace. GPIOs are only made available to userspace by an explicit - "export" operation. If a given GPIO is not claimed for use by - kernel code, it may be exported by userspace (and unexported later). - Kernel code may export it for complete or partial access. - - GPIOs are identified as they are inside the kernel, using integers in - the range 0..INT_MAX. See Documentation/gpio.txt for more information. - - /sys/class/gpio - /export ... asks the kernel to export a GPIO to userspace - /unexport ... to return a GPIO to the kernel - /gpioN ... for each exported GPIO #N OR - / ... for a properly named GPIO line - /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 - /gpiochipN ... for each gpiochip; #N is its first GPIO - /base ... (r/o) same as N - /label ... (r/o) descriptive, not necessarily unique - /ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1) - diff --git a/MAINTAINERS b/MAINTAINERS index 23cd966cb974..0efc993249a1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4643,6 +4643,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git S: Maintained F: Documentation/gpio/ F: Documentation/ABI/testing/gpio-cdev +F: Documentation/ABI/obsolete/sysfs-gpio F: drivers/gpio/ F: include/linux/gpio/ F: include/linux/gpio.h -- 2.4.3