diff options
Diffstat (limited to '')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl new file mode 100644 index 0000000000..b6a138b50d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-i2c-demux-pinctrl @@ -0,0 +1,18 @@ +What: /sys/devices/platform/<i2c-demux-name>/available_masters +Date: January 2016 +KernelVersion: 4.6 +Contact: Wolfram Sang <wsa+renesas@sang-engineering.com> +Description: + Reading the file will give you a list of masters which can be + selected for a demultiplexed bus. The format is + "<index>:<name>". Example from a Renesas Lager board:: + + 0:/i2c@e6500000 1:/i2c@e6508000 + +What: /sys/devices/platform/<i2c-demux-name>/current_master +Date: January 2016 +KernelVersion: 4.6 +Contact: Wolfram Sang <wsa+renesas@sang-engineering.com> +Description: + This file selects/shows the active I2C master for a demultiplexed + bus. It uses the <index> value from the file 'available_masters'. |