I2C Address Translator (ATR) support

modulename: i2c-atr.ko

configname: CONFIG_I2C_ATR

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C Address Translator (ATR) support
In linux kernel since version 4.14.327 (release Date: 2023-10-10)  
Enable support for I2C Address Translator (ATR) chips.

An ATR allows accessing multiple I2C busses from a single
physical bus via address translation instead of bus selection as
i2c-muxes do.

source code: