···77 depends on HAS_IOMEM88 select RT_MUTEXES99 ---help---1010- I2C (pronounce: I-square-C) is a slow serial bus protocol used in1010+ I2C (pronounce: I-squared-C) is a slow serial bus protocol used in1111 many micro controller applications and developed by Philips. SMBus,1212 or System Management Bus is a subset of the I2C protocol. More1313 information is contained in the directory <file:Documentation/i2c/>,