i2c-0 smbus SMBus PIIX4 adapter port 0 at 0b00 SMBus adapter i2c-1 smbus SMBus PIIX4 adapter port 2 at 0b00 SMBus adapter i2c-2 smbus SMBus PIIX4 adapter port 1 at 0b20 SMBus adapter i2c-3 i2c NVIDIA i2c adapter 4 at 7:00.0 I2C adapter i2c-4 i2c NVIDIA i2c adapter 5 at 7:00.0 I2C adapter