The ethercat crate provides a Rust wrapper for the IgH/Etherlab
EtherCAT Master for Linux.
EtherCAT is an Ethernet-based fieldbus system, originally invented by Beckhoff GmbH but now used by numerous providers of automation related hardware. The IgH master lets you provide an EtherCAT master on a Linux machine without specialized hardware.
In order to build the raw wrapper crate ethercat-sys, you need to set the
environment variable ETHERCAT_PATH to the location of a checkout of the IgH
Etherlab repository, after running configure there.
The minimum tested Rust version is 1.34.2.
The Etherlab master is licensed under the GPLv2, and provides Linux kernel modules and a userspace library, with an ioctl based interface. This crate does not use the userspace library (which is a simple wrapper around the ioctls anyway) but rather communicates with the kernel modules through the raw ioctls.
Therefore, we believe that the crate does not need to be GPLv2-licensed, and are using the dual MIT/Apache-2 license commonly used for Rust crates.