Attaching and detaching USB devices from a virtual machine used for gaming is quite annoying. First of all, to detach them one does need to run a command on the host somehow.

ssh works, but it's not very convenient, so let's make something better!

This tool is an attempt to make it a little better. It polls displays' input source status via DDC and runs appropriate command when input gets switched.

Combined with virt-usb tool, which wraps libvirt API, USB devices can follow input source selection!

By default ddcpoll look for config.toml in its working directory, but -f flag can be used to override this.

The configuration format is quite simple TOML file:

# DELL
[[displays]]
serial = "GH85D64F019S"
feature = 96

  # primary output for desktop
  [[displays.actions]]
  value = 16
  command = "./virt-usb --detach --domain gamez --devices 1532:001c 0f39:0825"

  # secondary output for gamez
  [[displays.actions]]
  value = 15
  command = "./virt-usb --attach --domain gamez --devices 1532:001c 0f39:0825"

Currently it uses TOML 0.4, which doesn't support hexadecimal literals.

This project is licensed under MIT license.