i2c-adapter-ch431a Linux kernel module for CH341A as USB to I2C bridge. Usage example make sudo insmod i2c-ch341a.ko sudo modprobe at24 sudo sh -c "echo 24c32 0x50 > /sys/bus/i2c/devices/i2c-0/new_device" sudo hexdump -Cv /sys/bus/i2c/devices/0-0050/eeprom | less