A driver for the Holtek CO₂ USB monitors, tested using a TFA-Dostmann AIRCO2NTROL MINI sensor.
On Linux, you need to be able to access the USB HID device. For that, you
can save the following udev rule to /etc/udev/rules.d/60-co2mon.rules:
ACTION=="add|change", SUBSYSTEMS=="usb", ATTRS{idVendor}=="04d9", ATTRS{idProduct}=="a052", MODE:="0666"
Then reload the rules and trigger them:
udevadm control --reload
udevadm triggerNote that the udev rule above makes the device accessible to every local user.
cargo run --example watchRelease notes are available in CHANGELOG.md.
The USB HID protocol is not documented, but is a superset of this one and was reverse-engineered before.
The implementation was inspired by this one.
This project is licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.