#power-supply #corsair #data #interface #series #read #supplies


Read data from Corsair RMi and HXi series power supplies

8 releases (2 stable)

2.0.0 Oct 16, 2022
1.0.0 Dec 27, 2021
0.4.0 Jan 30, 2021
0.3.2 Jan 25, 2021
0.1.0 Jan 8, 2021

#780 in Hardware support

42 downloads per month

MIT license

500 lines

crates.io docs.rs CI


Read data from Corsair RMi and HXi series power supplies.

This uses the Linux HIDRAW interface to communicate with the power supply.

This crate is based off of this implementation in C: notaz/corsairmi


use corsairmi::PowerSupply;

let mut psu: PowerSupply = PowerSupply::open("/dev/hidraw5")?;
println!("Power consumption: {:.1} Watts", psu.input_power()?);


An asynchronous implementation is available with the tokio feature flag.

udev rules

You will most likely want to update your udev rules so that you can access the power supply as a non superuser.

These are my udev rules, you will need to update the idProduct field for the product ID of your power supply, you can figure this value out with lsusb, or by reading the source.

Also note the value for idProduct must be lowercase hexadecimal.

# /etc/udev/rules.d/99-corsair.rules
SUBSYSTEM=="hidraw", ATTRS{idVendor}=="1b1c", ATTRS{idProduct}=="1c06", MODE="0666"

udev rules can be reloaded with sudo udevadm control --reload-rules && sudo udevadm trigger


~21K SLoC