Description

I2C (pronounced "I-square-C") is a slow serial bus protocol developed by Philips and used in many micro controller applications. SMBus, or System Management Bus, is a subset of the I2C protocol. More information is contained in the directory Documentation/i2c, especially in the file there called summary.

Both I2C and SMBus are supported by this option. You will need it for hardware sensors support and Video For Linux support.

If you want I2C support, in addition to saying yes here, you must also select the specific drivers for your bus adapters.