---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# i2cdump

> Dump I2C device registers.
> See also: `i2cdetect`, `i2cget`, `i2cset`.
> Note: All addresses should be specified in hexadecimal.
> More information: <https://manned.org/i2cdump>.

- Dump all registers of an I2C device:

`i2cdump {{i2cbus}} {{device_address}}`

- Dump all registers of an I2C device without asking for confirmation:

`i2cdump -y {{i2cbus}} {{device_address}}`

- Dump all registers of an I2C device using a specific mode:

`i2cdump {{i2cbus}} {{device_address}} {{b|w|c|s|i}}`

- Dump registers from `start` to `end` of an I2C device:

`i2cdump -r {{start}}-{{end}} {{i2cbus}} {{device_address}}`
