How to specify i2c bus on linux?

[vipaoL]

I'm building with tools/buid_and_run.sh and my i2c bus is /dev/i2c-7. How to choose it instead of the default from, I guess, raspberry pi?

[lexus2k]

@vipaoL could you please try to use ssd1306_i2cInitEx2() ? The first parameter is what you need.