| What: /sys/devices/platform/<i2c-demux-name>/cur_master | |
| Date: January 2016 | |
| KernelVersion: 4.6 | |
| Contact: Wolfram Sang <wsa@the-dreams.de> | |
| Description: | |
| This file selects the active I2C master for a demultiplexed bus. | |
| 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 |