From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH] i2c: mux: demux-pinctrl: Update docs to new sysfs-attributes Date: Sun, 3 Apr 2016 16:42:16 +0200 Message-ID: <1459694536-23144-1-git-send-email-wsa@the-dreams.de> Return-path: Sender: linux-renesas-soc-owner@vger.kernel.org To: linux-i2c@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Wolfram Sang , Ben Hutchings List-Id: linux-i2c@vger.kernel.org From: Wolfram Sang Update the docs according to the recent code changes, too. Fixes: c0c508a418f9da ("i2c: mux: demux-pinctrl: Clean up sysfs attributes") Cc: Ben Hutchings Signed-off-by: Wolfram Sang --- .../ABI/testing/sysfs-platform-i2c-demux-pinctrl | 29 +++++++++------------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl index 7ac7d7262bb718..3c3514815cd53b 100644 --- a/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl +++ b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl @@ -1,23 +1,18 @@ -What: /sys/devices/platform//cur_master +What: /sys/devices/platform//available_masters Date: January 2016 KernelVersion: 4.6 Contact: Wolfram Sang Description: + Reading the file will give you a list of masters which can be + selected for a demultiplexed bus. The format is + ":". Example from a Renesas Lager board: -This file selects the active I2C master for a demultiplexed bus. + 0:/i2c@e6500000 1:/i2c@e6508000 -Write 0 there for the first master, 1 for the second etc. Reading the file will -give you a list with the active master marked. Example from a Renesas Lager -board: - -root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master -* 0 - /i2c@9 - 1 - /i2c@e6520000 - 2 - /i2c@e6530000 - -root@Lager:~# echo 2 > /sys/devices/platform/i2c@8/cur_master - -root@Lager:~# cat /sys/devices/platform/i2c@8/cur_master - 0 - /i2c@9 - 1 - /i2c@e6520000 -* 2 - /i2c@e6530000 +What: /sys/devices/platform//current_master +Date: January 2016 +KernelVersion: 4.6 +Contact: Wolfram Sang +Description: + This file selects/shows the active I2C master for a demultiplexed + bus. It uses the value from the file 'available_masters'. -- 2.7.0