tldr/pages/linux/i2cset.md

i2cset

Set the value of a register of an I2C device. See also: i2cdetect, i2cdump, i2cget. Note: All addresses should be specified in hexadecimal. More information: https://manned.org/i2cset.

• Write to a register of an I2C device:

i2cset {{i2cbus}} {{device_address}} {{register_address}} {{value}}

• Write to a register of an I2C device without asking for confirmation:

i2cset -y {{i2cbus}} {{device_address}} {{register_address}} {{value}}

• Write to a register of an I2C device using a specific mode:

i2cset {{i2cbus}} {{device_address}} {{register_address}} {{value}} {{b|w|c|s|i}}