Resolved! I2C-2 and I2C-6 bus is busy when accessing from user space.
I want to use i2c-2 and i2c-6 from the user space to access different external devices. With 'i2cdetect -l' I can see the interfaces, But executing 'i2cdetect 3' sais 'Bus busy'.Used HW: Phytec Sabre Board (phyBOARD-Sargas)Linux: Yocto-OpenSTLinux PD...